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Rambod M, Pasyar N, Soltanian M. The predictive role of resilience and the ethical climate of hospital in the fatigue of surgical technologists working in operating rooms. BMC Psychol 2024; 12:380. [PMID: 38978098 PMCID: PMC11232221 DOI: 10.1186/s40359-024-01881-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Accepted: 07/01/2024] [Indexed: 07/10/2024] Open
Abstract
BACKGROUND Fatigue in surgical technologists is of paramount importance and is known as a priority because it can be regarded as a threat to the nurse's health and patient's safety. The fatigue level of healthcare workers can be affected by some factors, while the role of part of these factors is less known. This study aimed to determine the predictive role of resilience and the hospital ethical climate in the fatigue of surgical technologists working in operating rooms (ORs). METHODS This is a cross-sectional study conducted on 217 surgical technologists working in ORs of hospitals affiliated with Shiraz University of Medical Sciences. Data were collected using Connor-Davidson's Resilience scale, Olson's Hospital Ethical Climate Survey, and the Multidimensional Fatigue Inventory, and then analyzed using Pearson's correlation coefficient and multiple regression analysis. RESULTS 87.1% and 12.9% of surgical technologists reported low and high fatigue, respectively. All fatigue subscales had significant and negative relationships with resilience (p < 0.05). Moreover, the relationship between fatigue and ethical climate was significant (p = 0.02). The multiple linear regression model showed the predictive role of resilience in fatigue (β=-0.29, P < 0.001). According to the model, 10% of the change of fatigue was related to resilience and ethical climate. CONCLUSION The present study demonstrated the relationship between resilience and ethical climate with fatigue. Moreover, resilience was a predictor of the surgical technologists' fatigue, so that their fatigue decreased with increasing resilience. However, future studies are recommended to determine other factors influencing fatigue in surgical technologists.
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Affiliation(s)
- Masoume Rambod
- Community Based Psychiatric Care Research Center, School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nilofar Pasyar
- Community Based Psychiatric Care Research Center, School of Nursing and Midwifery, Shiraz University of Medical Sciences, Shiraz, Iran.
| | - Marzieh Soltanian
- Student Research Committee, Shiraz University of Medical Sciences, Shiraz, Iran
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Machfer A, Tagougui S, Zghal F, Hassen HBH, Fekih N, Amor HIH, Chtourou H, Bouzid MA. Hemodynamic and neuromuscular basis of reduced exercise capacity in patients with end-stage renal disease. Eur J Appl Physiol 2024; 124:1991-2004. [PMID: 38374473 DOI: 10.1007/s00421-024-05427-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 01/27/2024] [Indexed: 02/21/2024]
Abstract
PURPOSE The present study aimed to characterize the exercise-induced neuromuscular fatigue and its possible links with cerebral and muscular oxygen supply and utilization to provide mechanistic insights into the reduced exercise capacity characterizing patients with end-stage renal disease (ESRD). METHODS Thirteen patients with ESRD and thirteen healthy males (CTR group) performed a constant-force sustained isometric contraction at 50% of their maximal voluntary isometric contraction (MVC) until exhaustion. Quadriceps muscle activation during exercise was estimated from vastus lateralis, vastus medialis, and rectus femoris EMG. Central and peripheral fatigue were quantified via changes in pre- to postexercise quadriceps voluntary activation (ΔVA) and quadriceps twitch force (ΔQtw,pot) evoked by supramaximal electrical stimulation, respectively. To assess cerebral and muscular oxygenation, throughout exercise, near-infrared spectroscopy allowed investigation of changes in oxyhemoglobin (∆O2Hb), deoxyhemoglobin (∆HHb), and total hemoglobin (∆THb) in the prefrontal cortex and in the vastus lateralis muscle. RESULTS ESRD patients demonstrated lower exercise time to exhaustion than that of CTR (88.8 ± 15.3 s and 119.9 ± 14.6 s, respectively, P < 0.01). Following the exercise, MVC, Qtw,pot, and VA reduction were similar between the groups (P > 0.05). There was no significant difference in muscle oxygenation (∆O2Hb) between the two groups (P > 0.05). Cerebral and muscular blood volume (∆THb) and oxygen extraction (∆HHb) were significantly blunted in the ESRD group (P < 0.05). A significant positive correlation was observed between time to exhaustion and cerebral blood volume (∆THb) in both groups (r2 = 0.64, P < 0.01). CONCLUSIONS These findings support cerebral hypoperfusion as a factor contributing to the reduction in exercise capacity characterizing ESRD patients.
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Affiliation(s)
- Amal Machfer
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Sémah Tagougui
- Université de Lille, Université d'Artois, Université du Littoral Côte d'Opale, ULR 7369 - URePSSS - Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS), Lille, France
- Montreal Clinical Research Institute (IRCM), Montreal, Canada
| | - Firas Zghal
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
- Université de La Réunion, IRISSE, Le Tampon, La Réunion, France
| | - Hayfa Ben Haj Hassen
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | - Nadia Fekih
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia
| | | | - Hamdi Chtourou
- Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport, 1003, Tunis, Tunisia
| | - Mohamed Amine Bouzid
- Research Laboratory: Education, Motricité, Sport et Santé, EM2S, LR19JS01, High Institute of Sport and Physical Education, University of Sfax, Sfax, Tunisia.
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Yildiz M, Akyildiz Z, Gunay M, Clemente FM. Relationship Between Training Load, Neuromuscular Fatigue, and Daily Well-Being in Elite Young Wrestlers. RESEARCH QUARTERLY FOR EXERCISE AND SPORT 2024; 95:303-312. [PMID: 37369136 DOI: 10.1080/02701367.2023.2198575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 03/26/2023] [Indexed: 06/29/2023]
Abstract
Purpose: This study investigated acute workload (wAW), chronic workload (wCW), acute: chronic workload ratio (wACWR), training monotony (wTM), perceived load training strain indicators (wTS), and countermove- ment jump (CMJ) as indicators of wellness in one season and defined weekly variations. In addition, we analyzed the relationships between training load measurements and weekly reports. Methods: 16 elite young wrestlers were monitored daily with individual observations for 46 consecutive weeks throughout the season. Training load was obtained using the session rating of perceived effort. wSleep, wStress, wFatigue & wMuscle Soreness well-being were monitored daily using the Hooper index. Results: As a result of the analysis, it was found that there is a moderate relationship (r = 0.51, p = .003) between ACWR and w mean load (A.U.) and a high relationship (r = 0.81, p < .001) between monotony and strain. Conclusion: All variables other than ACWR, w mean load, strain, and monotony presented small and statistically insignificant relationships. These results provide coaches and practitioners with new insights into perceived loads and health changes during a season at the elite youth level.
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Leclercq A, Chatrenet A, Bourgeois H, Cojocarasu O, Mathie C, Martin T, Rahmani A, Morel B. Multidisciplinary analysis of cancer-related fatigue at the time of diagnosis: preliminary results of the BIOCARE FActory cohort. Support Care Cancer 2024; 32:319. [PMID: 38689167 DOI: 10.1007/s00520-024-08520-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 04/22/2024] [Indexed: 05/02/2024]
Abstract
PURPOSE Cancer-related fatigue (CRF) is a common side effect of cancer and cancer treatment that significantly impairs the quality of life and can persist for years after treatment completion. Although fatigue is often associated with cancer treatment, it is also a result of the disease itself, even before intervention. CRF at the time of diagnosis may affect treatment timing or completion and is a consistent predictor of post-treatment fatigue at any time. The mechanisms underlying CRF are multidimensional and not well understood, particularly at the time of diagnosis. METHODS Sixty-five breast cancer patients at the time of diagnosis were included. The participants completed self-assessment questionnaires about CRF, sleep disturbances, and emotional symptoms and wore an accelerometer to assess levels of spontaneous physical activity and sleep quality. During the experimental session, the participants underwent cognitive, neuromuscular, and exercise metabolism evaluations. RESULTS Using augmented backward elimination regression, this study found that emotional symptoms and perceived sleep disturbances were the strongest predictors of CRF (adjusted r2 = 0.51). Neuromuscular fatigability and sleep disturbance were also associated with physical dimensions, whereas cognitive performance was associated with cognitive dimensions. CONCLUSION At the time of diagnosis, emotional and cognitive dimensions are over-represented compared to the general population, and specific subdimensions have specific predictors that support the idea of distinct mechanisms. Evaluating CRF subdimensions and their potential mechanisms at the time of diagnosis would be particularly relevant for identifying high-risk patients and offering them appropriate interventions. TRIAL REGISTRATION This study was registered at ClinicalTrials.gov (NCT04391543) in May, 2020.
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Affiliation(s)
- A Leclercq
- Laboratoire Movement, Interactions, Performance, MIP-UR 4334, Le Mans Université Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France.
| | - A Chatrenet
- Laboratoire Movement, Interactions, Performance, MIP-UR 4334, Le Mans Université Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France
- APCoSS-Institute of Physical Education and Sports Sciences (IFEPSA), UCO, Angers, France
| | - H Bourgeois
- Elsan-Clinique Victor Hugo, Centre Jean Bernard, Le Mans, France
| | - O Cojocarasu
- Centre Hospitalier Le Mans (CHM), Le Mans, France
| | - C Mathie
- Centre Hospitalier Le Mans (CHM), Le Mans, France
| | - T Martin
- Laboratoire Movement, Interactions, Performance, MIP-UR 4334, Le Mans Université Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France
| | - A Rahmani
- Laboratoire Movement, Interactions, Performance, MIP-UR 4334, Le Mans Université Avenue Olivier Messiaen, 72085, Le Mans Cedex 9, France
| | - B Morel
- Laboratoire Interuniversitaire de Biologie de La Motricité, Université Savoie Mont Blanc, EA 7424, F-73000, Chambéry, France
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Chartogne M, Rahmani A, Landry S, Morel B. Comparison of neuromuscular fatigability amplitude and etiologies between fatigued and non-fatigued cancer patients. Eur J Appl Physiol 2024; 124:1175-1184. [PMID: 37952231 DOI: 10.1007/s00421-023-05347-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 10/25/2023] [Indexed: 11/14/2023]
Abstract
PURPOSE Cancer-related fatigue (CRF) is the most reported side effect of cancer and its treatments. Mechanisms of CRF are multidimensional, including neuromuscular alterations leading to decreased muscle strength and endurance (i.e., fatigability). Recently, exercise fatigability and CRF have been related, while fatigability mechanisms remain unclear. Traditionally, fatigability is assessed from maximal voluntary contractions (MVC) decrease, but some authors hypothesized that the rate of force development (RFD) determined during a rapid contraction could also be an interesting indicator of functional alterations. However, to our knowledge, no study investigated RFD in cancer patients. The purpose of this study was to determine whether RFD, fatigability amplitude, and etiology are different between fatigued and non-fatigued cancer patients. METHODS Eighteen participants with cancer, divided in fatigued or non-fatigued groups according their CRF level, completed a 5-min all-out exercise in ankle plantar flexor muscles composed of 62 isometric MVC of 4 s with 1 s rest, to assess fatigability amplitude as the force-time relationship asymptote (FA). Before and after exercise, fatigability etiologies (i.e., voluntary activation (VA) and evoked forces by electrical stimulation (Db100)) were assessed as well as RFD in 50 and 100 ms (RFD50 and RFD100, respectively) during rapid contractions. RESULTS FA is significantly lower in fatigued group. Significant differences were found between pre- and post-exercise VA, Db100, RFD50, and RFD100 for both groups, with no statistical difference between groups. CONCLUSION During treatments, fatigability is higher in fatigued patients; however, the mechanisms of fatigability and RFD alterations are similar in both groups. TRIAL REGISTRATION ClinicalTrials.gov, NCT04391543, May 2020.
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Affiliation(s)
- M Chartogne
- Le Mans University, Movement-Interactions-Performance, MIP, UR 4334, 72000, Le Mans, France.
- Nantes University, Movement-Interactions-Performance, MIP, UR 4334, 44322, Nantes Cedex 3, France.
| | - A Rahmani
- Le Mans University, Movement-Interactions-Performance, MIP, UR 4334, 72000, Le Mans, France
| | - S Landry
- Centre de Cancérologie de la Sarthe, 72000, Le Mans, France
| | - B Morel
- Le Mans University, Movement-Interactions-Performance, MIP, UR 4334, 72000, Le Mans, France
- Univ Savoie Mont Blanc, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, 73000, Chambéry, France
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Zhang S, Sun Y, Wang J, Lu Y, Yuan H, Zong Y, Zhu H, Tang Y, Sun Y, Zheng F, Li Y. Shuyu decoction exhibits anti-fatigue properties via alleviating exercise-induced immune dysfunction. JOURNAL OF ETHNOPHARMACOLOGY 2024; 319:117259. [PMID: 37783410 DOI: 10.1016/j.jep.2023.117259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 09/26/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Shuyu decoction (SYD), an effective traditional Chinese medicine (TCM), has been widely used for treating deficiency-related diseases for thousands of years. Meanwhile, exercise-induced fatigue (EF), a common physiological phenomenon observed in physical training, has been treated as a deficient condition in TCM for decades. Currently, not many studies have been conducted on the effect of SYD on EF and little is known about its underlying pharmacological mechanism. AIM OF THE STUDY This current study was designed to assess the anti-fatigue roles of SYD and explore its effect on exercise-induced immune dysfunction. MATERIALS AND METHODS Eighteen rats were randomly divided into three groups: normal control (NC) group, model (M) group, and SYD group (27.8 g/kg). The M and SYD group were given treadmill training for 6 weeks. From the fourth week, the SYD group was administered SYD intragastrically for 3 consecutive weeks. After three weeks of treatment, the rats were anesthetized, and the blood and spleen tissue samples were dissected. The blood sample was devoted to the blood biochemical-related indicators, which were used to evaluate the anti-fatigue of SYD. The expression of Interleukin (IL)-6, IL-1β, tumor necrosis factor-α (TNF-α), IL-17, CD3+, and CD4+ were detected by ELISA and the level of CD8+ of blood was measured through Flow Cytometry (FC). The histopathological changes of spleen tissue samples were determined by Hematoxylin and eosin (H&E) staining and an estimation of CD3+, CD4+, and CD8+ expression of spleen tissues were calculated through FC. RESULTS Compared with the M group, the SYD group observed an increase in tensile force and the ratio of cortisol to testosterone (TTE/COR), whereas a reduction in the levels of lactic acid (LAC), blood urea nitrogen (BUN), creatine kinase (CK), (P < 0.01 or P < 0.05). ELISA experiments showed that SYD reduced the expressions of IL-6, IL-1β, and TNF-α, IL-17 and increased the expression of IL-10 (P < 0.01 or P < 0.05). In the HE test, SYD treatment transformed the structure of the spleen. FC experiments further showed that SYD increased the expressions of CD3+, CD4+, and CD8+ in blood and spleen tissues (P < 0.01 or P < 0.05). CONCLUSION Our findings indicate that SYD can alleviate EF by improving inflammation and immunity. However, the relationship between inflammatory factors and the related immune response remains to be further investigated.
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Affiliation(s)
- Shujing Zhang
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yuemeng Sun
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Jiarou Wang
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yixing Lu
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Huimin Yuan
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yulin Zong
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Haoyu Zhu
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yang Tang
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China
| | - Yan Sun
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Fengjie Zheng
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China.
| | - Yuhang Li
- School of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, 100029, China.
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Yoshida N, Hornsby WG, Sole CJ, Sato K, Stone MH. Effect of Neuromuscular Fatigue on the Countermovement Jump Characteristics: Basketball-Related High-Intensity Exercises. J Strength Cond Res 2024; 38:164-173. [PMID: 37889855 DOI: 10.1519/jsc.0000000000004610] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
ABSTRACT Yoshida, N, Hornsby, WG, Sole, CJ, Sato, K, and Stone, MH. Effect of neuromuscular fatigue on the countermovement jump characteristics: basketball related high-intensity exercises. J Strength Cond Res 38(1): 164-173, 2024-The purpose of this study was to investigate basketball specific neuromuscular (NM) fatigue effect on countermovement jump (CMJ) force-time (F-T) curve characteristics. Eleven male college-level basketball athletes performed 6 CMJ trials at 3 baseline (pre) and 6 postexercise time points. The fatiguing protocol consisted of high-intensity basketball related exercises commensurate with basketball game or practice. Typical CMJ (CMJ-TYP) and phase-specific CMJ variables were derived from the F-T curve. Meaningful differences in CMJ performance were examined using effect size (ES) compared with baseline and previous postexercise time point. Baseline with 3 separated measurements demonstrated suitable CMJ variables reproducibility (CV, coefficient of variation). Most CMJ-TYP output and performance variables displayed substantial alterations immediately postexercise (0 hour) and returned to baseline at 24 hours postexercise, whereas the time and rate-related CMJ-TYP and CMJ-phase variables tended to display delayed decline peaked at 2 hours and delayed recovery to baseline at 48 hours postexercise. In conjunction with the return of the time and rate-related variables, CMJ performance displayed supercompensation at 72 hours postexercise. The results indicate altered NM functions with desired CMJ performance, such as jump height, which imply an altered movement strategy at early stage of recovery process. Full recovery may take 48-72 hours. Practitioners are, therefore, advised to monitor variables reflecting NM functions for precise manipulation of the intensity and volume of exercise to avoid prolonging the recovery from NM fatigue.
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Affiliation(s)
- Nobuhisa Yoshida
- Department of Exercise and Sport Sciences, Center of Excellence for Sport Science and Coach Education, East Tennessee State University, Johnson City, Tennessee
| | - W Guy Hornsby
- School of Sport Sciences, College of Applied Human Sciences, West Virginia University, Morgantown, West Virginia
| | - Christopher J Sole
- Department of Health and Human Performance, The Citadel, Charleston, South Carolina; and
| | | | - Michael H Stone
- Department of Exercise and Sport Sciences, Center of Excellence for Sport Science and Coach Education, East Tennessee State University, Johnson City, Tennessee
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Royer N, Brownstein CG, Kennouche D, Espeit L, Teston A, Boutet C, Féasson L, Camdessanché JP, Millet GY. A Comprehensive Evaluation of Multiple Sclerosis-Related Fatigue with a Special Focus on Fatigability. Med Sci Sports Exerc 2023; 55:2002-2013. [PMID: 37319414 DOI: 10.1249/mss.0000000000003233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
INTRODUCTION Fatigue is the most common and disabling symptom in multiple sclerosis (MS), being reported by 55% to 78% of patients with MS (PwMS). Etiology of MS-related fatigue remains poorly understood, but an increased neuromuscular fatigability (i.e., greater loss of torque during exercise) could contribute to this phenomenon. This study aimed to characterize the correlates of MS-related fatigue in PwMS using a comprehensive group of physiological and psychosocial measures, with a particular focus on fatigability. METHODS Forty-two relapsing-remitting PwMS and 20 healthy subjects were recruited. PwMS were assigned in two groups (high (HF) and low (LF) fatigue) based on two fatigue questionnaires (Fatigue Severity Scale and Modified Fatigue Impact Scale). The main outcomes of this study are derived from incremental cycling completed to task failure (i.e., inability to pedal around 60 rpm). Maximal voluntary contraction (MVC), rating of perceived exertion, and central and peripheral parameters measured using transcranial magnetic and peripheral nerve stimulation were assessed in the knee extensor muscles before, during, and after the fatiguing task. Other potential correlates of fatigue were also tested. RESULTS MVC torque decreased to a greater extent for the HF group than LF group after the third common stage of the incremental fatiguing exercise (-15.7% ± 6.6% vs -5.9% ± 13.0%, P < 0.05), and this occurred concurrently with a higher rating of perceived exertion for HF (11.8 ± 2.5 vs 9.3 ± 2.6, P < 0.05). Subjective parameters (depression, quality of life) were worse for HF compared with LF and healthy subjects ( P < 0.001). Moreover, MVC torque loss at the final common stage and maximal heart rate explained 29% of the variance of the Modified Fatigue Impact Scale. CONCLUSIONS These results provide novel insight into the relationship between MS-related fatigue and fatigability among PwMS. The HF group exhibited greater performance fatigability, likely contributing to a higher perceived exertion than the LF group when measured during a dynamic task.
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Affiliation(s)
- Nicolas Royer
- Univ Lyon, UJM-Saint-Etienne, Inter-university Laboratory of Human Movement Biology, Saint-Etienne, FRANCE
| | - Callum G Brownstein
- Univ Lyon, UJM-Saint-Etienne, Inter-university Laboratory of Human Movement Biology, Saint-Etienne, FRANCE
| | - Djahid Kennouche
- Univ Lyon, UJM-Saint-Etienne, Inter-university Laboratory of Human Movement Biology, Saint-Etienne, FRANCE
| | - Loic Espeit
- Univ Lyon, UJM-Saint-Etienne, Inter-university Laboratory of Human Movement Biology, Saint-Etienne, FRANCE
| | - Anthony Teston
- Department of Radiology, CHU Hospital, Jean Monnet University, Saint Etienne, FRANCE
| | - Claire Boutet
- Department of Radiology, CHU Hospital, Jean Monnet University, Saint Etienne, FRANCE
| | - Léonard Féasson
- Univ Lyon, UJM-Saint-Etienne, Inter-university Laboratory of Human Movement Biology, Saint-Etienne, FRANCE
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Li F, Bi J, Liang Z, Li L, Liu Y, Huang L. Functional Near-Infrared Spectroscopy-Based Evidence of the Cerebral Oxygenation and Network Characteristics of Upper Limb Fatigue. Bioengineering (Basel) 2023; 10:1112. [PMID: 37892842 PMCID: PMC10603828 DOI: 10.3390/bioengineering10101112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 09/19/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
OBJECTIVE The objective of this research is to better understand the effects of upper limb fatigue on the cerebral cortex. The aim of this study was to investigate the characteristics of cerebral oxygenation and cortical functional connectivity in healthy adults after upper limb fatigue using functional near-infrared spectroscopy (fNIRS). METHODS Nineteen healthy adults participated in this study. The participants began exercising on an arm crank ergometer with no load, which was then increased by 0.2 kg per minute, maintaining a speed of at least 90 revolutions per minute during the exercise. Functional near-infrared spectroscopy covering the prefrontal cortex and motor area was used to monitor brain activity during rest and exercise. Heart rate and RPE were monitored during exercise to evaluate the degree of fatigue. Paired-sample t-tests were used to examine differences in the concentration of oxygenated hemoglobin (HbO2) and functional connectivity before and after fatigue. RESULTS All participants completed the exercise test that induced fatigue. We observed a significant decrease in HbO2 levels in the prefrontal and motor areas after exercise. In addition, brain network features showed a significant decrease in functional connectivity between the left and right motor cortices, between the motor and prefrontal cortices, and between both prefrontal cortices after fatigue. CONCLUSION This study demonstrates that, in healthy adults, exercise-induced fatigue in the upper limbs significantly affects brain function. In particular, it leads to reduced functional connectivity between the motor cortex and the prefrontal cortex.
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Affiliation(s)
| | | | | | | | | | - Lingyan Huang
- Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai 200438, China; (F.L.)
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Yang J, Han Q, Liu Q, Li T, Shao Y, Sui X, Wang Q. Effects of carbohydrate drinks ingestion on executive function in athletes: a systematic review and meta-analysis. Front Psychol 2023; 14:1183460. [PMID: 37637918 PMCID: PMC10448191 DOI: 10.3389/fpsyg.2023.1183460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 07/31/2023] [Indexed: 08/29/2023] Open
Abstract
Background Carbohydrates are often used as boosters for endurance and high-intensity exercise. However, it is unclear whether carbohydrate drinks intake before or during exercise can affect specific domains of cognitive function, such as Executive Function (EF). Methods Following the guidance of PRISMA 2020, we searched six major databases including PubMed, WOS, SPORTDiscus, Cochrane, Embase, and Scopus. Outcomes were presented in the form of Reaction Time (RT), Accuracy (ACC), and Scores (Score) for performing EF tests. Effect sizes were calculated from the test results of EF and expressed as standardized mean differences (SMDs). After analyzing the overall results, we performed subgroup analyses based on the athletes' program characteristics. Results After retrieving a total of 5,355 articles, ten randomized controlled trials (RCTs) were identified and included in this review. The overall results showed that the intake of carbohydrate drinks before or during exercise did not have a significant effect on the reduction of EF after exercise (ACC (-0.05 [-0.27, 0.18]); RT (-0.18 [-0.45, 0.09]); Score (0.24 [-0.20, 0.68])). The subgroup analyses based on open skill sports and close skill sports also showed invalid results, but the results of RT ended up with different preference (ACC of open skill sports athletes (-0.10 [-0.34, 0.14]); RT of open skill athletes (-0.27 [-0.60, 0.07]); RT of close skill athletes (0.29 [-0.24, 0.82])). Conclusion The intake of 6-12% of single or mixed carbohydrates before or during exercise was not significantly effective in reducing the decline in EF after exercise. Our findings may have been influenced by the type of intervention, dose, mode of administration, or individual variability of the included subjects.
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Affiliation(s)
- Jingye Yang
- College of Exercise Science, Beijing Sport University, Beijing, China
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
| | - Qi Han
- College of Exercise Science, Beijing Sport University, Beijing, China
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
| | - Qi Liu
- College of Exercise Science, Beijing Sport University, Beijing, China
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
| | - Tieying Li
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
| | - Yongcong Shao
- School of Psychology, Beijing Sport University, Beijing, China
| | - Xuemei Sui
- Arnold School of Public Health, Department of Exercise Science, University of South Carolina, Columbia, SC, United States
| | - Qirong Wang
- Sports Nutrition Center, National Institute of Sports Medicine, Beijing, China
- Key Lab of Sports Nutrition, State General Administration of Sport of China, Beijing, China
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Wang M, Tang HP, Wang S, Hu WJ, Li JY, Yu AQ, Bai QX, Yang BY, Kuang HX. Acorus tatarinowii Schott: A Review of Its Botany, Traditional Uses, Phytochemistry, and Pharmacology. Molecules 2023; 28:molecules28114525. [PMID: 37299001 DOI: 10.3390/molecules28114525] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 05/29/2023] [Accepted: 05/30/2023] [Indexed: 06/12/2023] Open
Abstract
Acorus tatarinowii Schott (A. tatarinowii) is a natural medicinal plant. It plays an indispensable role in the treatment of diseases by the empirical medicine system and has achieved remarkable curative effects. A. tatarinowii is often used to treat various diseases, such as depression, epilepsy, fever, dizziness, heartache, stomachache, etc. More than 160 compounds of different structural types have been identified in A. tatarinowii, including phenylpropanoids, terpenoids, lignans, flavonoids, alkaloids, amides, and organic acids. These bioactive ingredients make A. tatarinowii remarkable for its pharmacological effects, including antidepressant, antiepileptic, anticonvulsant, antianxiety, neuroprotective, antifatigue, and antifungal effects, improving Alzheimer's disease, and so on. It is noteworthy that A. tatarinowii has been widely used in the treatment of brain diseases and nervous system diseases and has achieved satisfactory therapeutic effects. This review focused on the research publications of A. tatarinowii and aimed to summarize the advances in the botany, traditional uses, phytochemistry, and pharmacology, which will provide a reference for further studies and applications of A. tatarinowii.
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Affiliation(s)
- Meng Wang
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Hai-Peng Tang
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Shuang Wang
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Wen-Jing Hu
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Jia-Yan Li
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Ai-Qi Yu
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Qian-Xiang Bai
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Bing-You Yang
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
| | - Hai-Xue Kuang
- Key Laboratory of Basic and Application Research of Beiyao, Ministry of Education, Heilongjiang University of Chinese Medicine, Harbin 150040, China
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Xie J, Fu M, Liu T, Li S, Liu G, Wang J, Ji C, Zhang T. Clinical studies on the electric automatic massage therapy for recovery of acute sports fatigue. Technol Health Care 2023; 31:185-197. [PMID: 37038791 DOI: 10.3233/thc-236016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
BACKGROUND Acute sports fatigue impairs athletes' performance and causes other health issues; therefore, an effective method of relieving acute sports fatigue is being researched. OBJECTIVE The present study was envisaged to evaluate the effect of electric auto-massage therapy and proprioceptive neuromuscular facilitated (PNF) stretching method on the recovery of acute exercise fatigue using the heart rate variability-based multi-physiological index and RPE scale, and to explore the underlying principle and mechanism. METHOD Sixty volunteers were divided into the stretching group, massage group and control group (20 subjects each) using the complete randomization method. The massage group chose the kneading, pressing, tapping and patting techniques using the intelligent massage chair to intervene on the volunteers, the stretching group chose the PNF stretching method to intervene on the volunteers, while the control group did not adopt any of these techniques. The Rating Of Perceived Exertion (RPE) score, heart rate (HR), grip strength, skin electrical activity, heart rate variability (HRV) and blood oxygen saturation (SpO2) of the three groups were recorded before and after the intervention. RESULTS Before the intervention, there was no statistically significant difference between the values of heart rate variability (HRV) in the three groups (P> 0.05), while after the intervention, there was a statistically significant difference between the values of heart rate variability - low frequency/high frequency (HRV (LF/HF)) and HRV (HF) in the three groups as: HRV (HF): ηH2= 0.10; P= 0.022; HRV (LF/HF): ηH2= 0.44; P= 0.001. The results indicated that the different intervention methods presented substantial effects on the values of HRV (HF) and HRV (LF/HF) in the volunteers. The HRV (HF) values of massage group, stretching group and control group were compared, and the difference between the massage group and control group was statistically significant (P= 0.019). Further, the HRV (HF) values of massage group rose more significantly than control group after the intervention, and the difference between HRV (HF) values of massage group and stretching group was not statistically significant. When comparing the HRV (LF/HF) values of massage group, stretching group and control group, the differences between the massage group and stretching group and control group were statistically significant (P= 0.001, P< 0.05), and it was observed that the HRV (LF/HF) values of massage group decreased more significantly than those of stretching group and control group after the intervention. The difference in HRV (LF) values between the three groups after the intervention was not statistically significant (P> 0.05). CONCLUSION 1. It was observed that the electric automatic massage therapy played a vital role in the rapid relief of exercise fatigue by soothing and regulating the human phototropic system, reducing vagal tone, and accelerating the excretion of metabolites; while PNF stretching relieved the exercise fatigue by providing physical and verbal communication to transfer the perception of fatigue, and by promoting the excretion of metabolites through muscle isometric contraction. 2. The effect of electric auto-massage therapy was marginally stronger than the commonly used PNF stretching exercise method.
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Affiliation(s)
- Juncheng Xie
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Meihong Fu
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Tangyi Liu
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Shaoxiong Li
- School of Acupuncture-Moxibustion and Tuina, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guangtao Liu
- Shanghai Rongtai Health Technology Corporation Limited, Shanghai, China
| | - Junliang Wang
- Shanghai Rongtai Health Technology Corporation Limited, Shanghai, China
| | - Chaoning Ji
- Shanghai Rongtai Health Technology Corporation Limited, Shanghai, China
| | - Tao Zhang
- Shanghai Rongtai Health Technology Corporation Limited, Shanghai, China
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13
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Mulin E, Augustin A, Gruet M. [Toward a better understanding of fatigue in schizophrenia]. L'ENCEPHALE 2023; 49:205-208. [PMID: 36253179 DOI: 10.1016/j.encep.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/08/2022] [Accepted: 06/21/2022] [Indexed: 11/07/2022]
Abstract
Despite being one of the most common complaints of people with schizophrenia, fatigue remains largely unexplored in this population. The lack of knowledge regarding this complex symptom makes it often underdiagnosed and undertreated in schizophrenia. The aim of this brief perspective review is to outline the potential origins (distinguishing primary and secondary fatigue) and consequences of fatigue and to explore some potential treatments in this population. The current literature in schizophrenia has mainly investigated fatigue as a trait, using a self-administered questionnaire. Beyond this observational approach, which does not allow to capture the symptom in real life situations where high levels of fatigue can emerge rapidly, we propose to consider the state level of fatigue, for instance occurring after a prolonged period of cognitive activity (i.e. mental fatigue). We elaborate on the potential relationships between mental fatigue and negative symptoms of schizophrenia and propose some research avenues to test the effects of acute fatigue on effort intentions and behaviours. The consideration of the multidimensional aspects of fatigue will allow to move beyond the sole pharmacological approach to treat fatigue in schizophrenia. Targeting the cognitive as well as the performance components of fatigue through interventions such as concomitant aerobic exercise - mental training offers attractive prospects to reduce fatigue in this population and minimize its functional negative impact.
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Affiliation(s)
- E Mulin
- Clinique Korian-le-Val-du-Fenouillet, rue du Cinsault, 83260 La-Crau, France; Laboratoire IAPS, Université de Toulon, Toulon, France.
| | - A Augustin
- Laboratoire IAPS, Université de Toulon, Toulon, France
| | - M Gruet
- Laboratoire IAPS, Université de Toulon, Toulon, France
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McClean Z, Iannetta D, Macinnis M, Aboodarda SJ. Shorter High-Intensity Cycling Intervals Reduce Performance and Perceived Fatigability at Work-Matched but Not Task Failure. Med Sci Sports Exerc 2023; 55:690-699. [PMID: 36729921 DOI: 10.1249/mss.0000000000003097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
INTRODUCTION The intensity, duration, and distribution of work and recovery phases during high-intensity interval training (HIIT) modulate metabolic perturbations during exercise and subsequently influence the development of performance fatigability and exercise tolerance. This study aimed to characterize neuromuscular, perceptual, and cardiorespiratory responses to work-to-rest ratio-matched HIIT protocols differing in work and rest interval duration. METHODS Twelve healthy individuals (six women) first completed a ramp incremental test to determine 90% of peak power output, and then in three randomized visits, they completed three cycling protocols to task failure at 90% of peak power output: (i) 3- to 3-min work-to-passive rest ratio HIIT (HIIT 3min ), (ii) 1- to 1-min work-to-passive rest ratio HIIT (HIIT 1min ), and (iii) constant load (CL). Interpolated twitch technique, including maximal voluntary isometric knee extensions and femoral nerve electrical stimuli, was performed at baseline, every 6 min of work, and task failure. Perceptual and cardiorespiratory responses were recorded every 3 min and continuously across the exercises, respectively. RESULTS The work completed during HIIT 1min (8447 ± 5124 kJ) was considerably greater than HIIT 3min (1930 ± 712 kJ) and CL (1076 ± 356) ( P < 0.001). At work-matched, HIIT 1min resulted in a lesser decline in maximal voluntary contraction and twitch force compared with HIIT 3min and CL ( P < 0.001). Perceived effort, pain, and dyspnea were least in HIIT 1min and HIIT 3min compared with CL ( P < 0.001). At task failure, HIIT 1min resulted in less voluntary activation than HIIT 3min ( P = 0.010) and CL ( P = 0.043), and engendered less twitch force decline than CL ( P = 0.021). CONCLUSIONS Overall, the mitigated physiological and perceptual responses during shorter work periods (HIIT 1min ) enhance exercise tolerance in comparison to longer work intervals at the same intensity (HIIT 3min , CL).
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Affiliation(s)
- Zachary McClean
- Faculty of Kinesiology, University of Calgary, Calgary, CANADA
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15
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An Z, Wang Y, Li X, Jin H, Gong Y. Antifatigue effect of sea buckthorn seed oil on swimming fatigue in mice. J Food Sci 2023; 88:1482-1494. [PMID: 36916120 DOI: 10.1111/1750-3841.16537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 02/13/2023] [Accepted: 02/27/2023] [Indexed: 03/16/2023]
Abstract
The effect of sea buckthorn seed oil (SSO) on exercise-induced fatigue in mice was explored. The animals were randomly divided into a normal control group, exercise-induced fatigue group (EFG), SSO low-dose group, SSO medium-dose group, and SSO high-dose group. The mice in all the groups underwent swimming training for 10 days. Those in the treatment groups received different amounts of SSO (0.85, 1.68, and 3.35 g/kg BW [body weight]) before the exercise. All the animals were sacrificed on the last day after an exhaustive swimming test, and serum, liver, and brain specimens were collected. In the exhaustive swimming test, the swimming durations in the SSO-treated animals were longer than those in the EFG. Furthermore, SSO reduced serum lactic acid, blood urea nitrogen, and hepatic malondialdehyde levels and increased liver glycogen level, hepatic superoxide dismutase level, hypothalamic dopamine content, and glutathione peroxidase level. The SSO treatment decreased hypothalamic 5-hydroxytryptamine content, lipid hydroperoxide level, NLRP3 inflammasome, and interleukin-1β protein expression in the prefrontal cortex. Furthermore, it promoted the protein expression of nuclear factor erythroid 2-related factor 2 in the liver. SSO exhibited an excellent antifatigue effect, which may be related to its inhibition of oxidative and inflammatory injury and regulation of hypothalamic neurotransmitters. PRACTICAL APPLICATION: In the present study, the effect of sea buckthorn seed oil on fatigue in mice and its potential mechanism were explored. Taken together, the findings provide insight into the potential role of sea buckthorn seed oil in the development of antifatigue drugs.
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Affiliation(s)
- Zhonghua An
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yifan Wang
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Xiangbo Li
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Hong Jin
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
| | - Yanling Gong
- Department of Pharmacy, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, China
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Anti-fatigue Effect of Traditional Chinese Medicines: A Review. Saudi Pharm J 2023; 31:597-604. [PMID: 37063439 PMCID: PMC10102495 DOI: 10.1016/j.jsps.2023.02.013] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Accepted: 02/27/2023] [Indexed: 03/11/2023] Open
Abstract
A third of the world's population suffers from unexplained fatigue, hugely impacting work learning, efficiency, and health. The fatigue development may be a concomitant state of a disease or the side effect of a drug, or muscle fatigue induced by intense exercise. However, there are no authoritative guides or clinical medication recommendations for various fatigue classifications. Traditional Chinese medicines (TCM) are used as dietary supplements or healthcare products with specific anti-fatigue effects. Thus, TCM may be a potential treatment for fatigue. In this review, we outline the pathogenesis of fatigue, awareness of fatigue in Chinese and western medicine, pharmacodynamics mechanism, and substances. Additionally, we offer a comprehensive summary of fatigue and forecast the potential effect of novel herbal-based medicines against fatigue.
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Zhang M, Cui S, Mao B, Zhang Q, Zhao J, Tang X, Chen W. Effects and mechanism of gastrodin supplementation on exercise-induced fatigue in mice. Food Funct 2023; 14:787-795. [PMID: 36606576 DOI: 10.1039/d2fo03095k] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Gastrodin reportedly exerts various pharmacological and health effects. However, the function of gastrodin in reducing exercise-induced fatigue remains elusive. Herein, we investigated the anti-fatigue effects of gastrodin on male mice and explored its possible mechanism of action. At 50 and 100 mg per kg per day, gastrodin significantly reduced fatigue in mice, confirmed using the forced swimming test, whereas no effect was noted at 20 mg per kg per day. Gastrodin preserved muscle and liver glycogen, increased superoxide dismutase activity, and decreased malondialdehyde, blood lactate, and blood urea nitrogen levels. Notably, gastrodin upregulated the mRNA expression levels of AMPK, nuclear factor erythroid 2-related factor 2 (Nrf2), and heme oxygenase 1. Gastrodin also regulated the composition of intestinal flora. These results confirmed that gastrodin activated AMPK and Nrf2/HO-1 pathways and regulated intestinal flora to improve performance in exhaustive exercise, suggesting that gastrodin is an effective functional food to alleviate exercise-induced fatigue.
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Affiliation(s)
- Mingjun Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China
| | - Shumao Cui
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China
| | - Bingyong Mao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China
| | - Qiuxiang Zhang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China
| | - Jianxin Zhao
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China
| | - Xin Tang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China
| | - Wei Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China. .,School of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, P. R China.,National Engineering Research Center for Functional Food, Jiangnan University, Wuxi, Jiangsu 214122, P. R China
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Millet GY, Bertrand MF, Lapole T, Féasson L, Rozand V, Hupin D. Measuring objective fatigability and autonomic dysfunction in clinical populations: How and why? Front Sports Act Living 2023; 5:1140833. [PMID: 37065809 PMCID: PMC10101442 DOI: 10.3389/fspor.2023.1140833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2023] [Accepted: 03/13/2023] [Indexed: 04/18/2023] Open
Abstract
Fatigue is a major symptom in many diseases, often among the most common and severe ones and may last for an extremely long period. Chronic fatigue impacts quality of life, reduces the capacity to perform activities of daily living, and has socioeconomical consequences such as impairing return to work. Despite the high prevalence and deleterious consequences of fatigue, little is known about its etiology. Numerous causes have been proposed to explain chronic fatigue. They encompass psychosocial and behavioral aspects (e.g., sleep disorders) and biological (e.g., inflammation), hematological (e.g., anemia) as well as physiological origins. Among the potential causes of chronic fatigue is the role of altered acute fatigue resistance, i.e. an increased fatigability for a given exercise, that is related to physical deconditioning. For instance, we and others have recently evidenced that relationships between chronic fatigue and increased objective fatigability, defined as an abnormal deterioration of functional capacity (maximal force or power), provided objective fatigability is appropriately measured. Indeed, in most studies in the field of chronic diseases, objective fatigability is measured during single-joint, isometric exercises. While those studies are valuable from a fundamental science point of view, they do not allow to test the patients in ecological situations when the purpose is to search for a link with chronic fatigue. As a complementary measure to the evaluation of neuromuscular function (i.e., fatigability), studying the dysfunction of the autonomic nervous system (ANS) is also of great interest in the context of fatigue. The challenge of evaluating objective fatigability and ANS dysfunction appropriately (i.e.,. how?) will be discussed in the first part of the present article. New tools recently developed to measure objective fatigability and muscle function will be presented. In the second part of the paper, we will discuss the interest of measuring objective fatigability and ANS (i.e. why?). Despite the beneficial effects of physical activity in attenuating chronic fatigue have been demonstrated, a better evaluation of fatigue etiology will allow to personalize the training intervention. We believe this is key in order to account for the complex, multifactorial nature of chronic fatigue.
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Affiliation(s)
- Guillaume Y. Millet
- Université Jean Monnet Saint-Etienne, Université Savoie Mont-Blanc, Inter-university Laboratory of Human Movement Biology, F-42023, Saint-Etienne, Lyon, France
- Institut Universitaire de France (IUF), Paris, France
- Correspondence: Guillaume Y. Millet
| | - Mathilde F. Bertrand
- Université Jean Monnet Saint-Etienne, Université Savoie Mont-Blanc, Inter-university Laboratory of Human Movement Biology, F-42023, Saint-Etienne, Lyon, France
| | - Thomas Lapole
- Université Jean Monnet Saint-Etienne, Université Savoie Mont-Blanc, Inter-university Laboratory of Human Movement Biology, F-42023, Saint-Etienne, Lyon, France
| | - Léonard Féasson
- Université Jean Monnet Saint-Etienne, Université Savoie Mont-Blanc, Inter-university Laboratory of Human Movement Biology, F-42023, Saint-Etienne, Lyon, France
- Service de physiologie clinique et de l'exercice, CHU de Saint-Étienne, Saint-Étienne, France
- Centre Référent Maladies Neuromusculaires rares - Euro-NmD, CHU de Saint-Étienne, Saint-Étienne, France
| | - Vianney Rozand
- Université Jean Monnet Saint-Etienne, Université Savoie Mont-Blanc, Inter-university Laboratory of Human Movement Biology, F-42023, Saint-Etienne, Lyon, France
| | - David Hupin
- Service de physiologie clinique et de l'exercice, CHU de Saint-Étienne, Saint-Étienne, France
- Jean Monnet University Saint-Etienne, Mines Saint-Etienne, University hospital of Saint-Etienne, INSERM, SAINBIOSE, U1059, DVH team, Saint-Etienne, France
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Pethick J, Tallent J. The Neuromuscular Fatigue-Induced Loss of Muscle Force Control. Sports (Basel) 2022; 10:184. [PMID: 36422953 PMCID: PMC9694672 DOI: 10.3390/sports10110184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2022] [Revised: 11/14/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Neuromuscular fatigue is characterised not only by a reduction in the capacity to generate maximal muscle force, but also in the ability to control submaximal muscle forces, i.e., to generate task-relevant and precise levels of force. This decreased ability to control force is quantified according to a greater magnitude and lower complexity (temporal structure) of force fluctuations, which are indicative of decreased force steadiness and adaptability, respectively. The "loss of force control" is affected by the type of muscle contraction used in the fatiguing exercise, potentially differing between typical laboratory tests of fatigue (e.g., isometric contractions) and the contractions typical of everyday and sporting movements (e.g., dynamic concentric and eccentric contractions), and can be attenuated through the use of ergogenic aids. The loss of force control appears to relate to a fatigue-induced increase in common synaptic input to muscle, though the extent to which various mechanisms (afferent feedback, neuromodulatory pathways, cortical/reticulospinal pathways) contribute to this remains to be determined. Importantly, this fatigue-induced loss of force control could have important implications for task performance, as force control is correlated with performance in a range of tasks that are associated with activities of daily living, occupational duties, and sporting performance.
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Affiliation(s)
- Jamie Pethick
- School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester CO4 3SQ, UK
| | - Jamie Tallent
- School of Sport, Rehabilitation and Exercise Sciences, University of Essex, Colchester CO4 3SQ, UK
- Department of Physiotherapy, School of Primary and Allied Health Care, Faculty of Medicine, Nursing and Health Science, Monash University, Melbourne 3800, Australia
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Royer N, Coates K, Aboodarda SJ, Camdessanché JP, Millet GY. How is neuromuscular fatigability affected by perceived fatigue and disability in people with multiple sclerosis? Front Neurol 2022; 13:983643. [DOI: 10.3389/fneur.2022.983643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 09/23/2022] [Indexed: 11/13/2022] Open
Abstract
Whereas fatigue is recognized to be the main complaint of patients with multiple sclerosis (PwMS), its etiology, and particularly the role of resistance to fatigability and its interplay with disability level, remains unclear. The purposes of this review were to (i) clarify the relationship between fatigue/disability and neuromuscular performance in PwMS and (ii) review the corticospinal and muscular mechanisms of voluntary muscle contraction that are altered by multiple sclerosis, and how they may be influenced by disability level or fatigue. Neuromuscular function at rest and during exercise are more susceptible to impairement, due to deficits in voluntary activation, when the disability is greater. Fatigue level is related to resistance to fatigability but not to neuromuscular function at rest. Neurophysiological parameters related to signal transmission such as central motor conduction time, motor evoked potentials amplitude and latency are affected by disability and fatigue levels but their relative role in the impaired production of torque remain unclear. Nonetheless, cortical reorganization represents the most likely explanation for the heightened fatigability during exercise for highly fatigued and/or disabled PwMS. Further research is needed to decipher how the fatigue and disability could influence fatigability for an ecological task, especially at the corticospinal level.
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Hernández-Lougedo J, Heredia-Elvar JR, Maicas-Pérez L, Cañuelo-Márquez AM, Rozalén-Bustín M, de Jesús Franco F, Garnacho-Castaño MV, García-Fernández P, Maté-Muñoz JL. Neuromuscular Fatigue and Metabolic Stress during the 15 Minutes of Rest after Carrying Out a Bench Press Exercise Protocol. BIOLOGY 2022; 11:biology11101435. [PMID: 36290339 PMCID: PMC9598826 DOI: 10.3390/biology11101435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/27/2022] [Accepted: 09/28/2022] [Indexed: 11/22/2022]
Abstract
Background: Velocity loss (VL) at 1 m·s−1 can help to determine neuromuscular fatigue after performing an exercise protocol. The aim of this study was to analyse muscle fatigue and metabolic stress during the 15 min that follow the execution of a bench press (BP) exercise protocol. Methods: Forty-four healthy male students of sports science performed two exercise sessions separated by one week of rest. In the first week, the participants carried out a test with progressive loads in the (BP) exercise until reaching the one-repetition maximum (1RM) in order to obtain the load−velocity relationship of each participant. In the second week, each participant conducted three BP exercise sets at an intensity of 70% of 1RM, determining this load through the mean propulsive velocity (MPV) obtained from the individual load−velocity relationship, with the participants performing the maximum number of repetitions (MNR) to muscle failure. Two minutes of rest were allocated between sets. MPV at 1 m·s−1 and blood lactate concentrations were recorded before executing the exercise and at minute 0, 5, 10 and 15 after performing the exercise protocol. Results: A two-factor repeated measures ANOVA was performed. MPV at 1 m·s−1 in minute 0 post-exercise was −33.3% (p < 0.05), whereas in minute 10 and 15 post-exercise, it was ≈−9% (p > 0.05). Regarding the blood lactate levels, significant differences were observed in all measurements before and after the exercise protocol (p < 0.001), obtaining ≈7 mmol·L−1 at minute 10 post-exercise and 4.3 mmol·L−1 after 15 min of recovery. Conclusions: MPV with medium or moderate loads shows a certain recovery from minute 10 of rest. However, the blood lactate levels are still high (>5 mmol·L−1). Therefore, although there seem to be certain conditions to reach a similar maximum MPV peak, the residual fatigue at the neuromuscular level and the non-recovery of metabolic homeostasis would hinder the reproduction of these protocols, both at the level of applied stimulus and from a methodological perspective, since a long recovery time would be required between sets and exercises.
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Affiliation(s)
- Juan Hernández-Lougedo
- Department of Physical Activity and Sports Science, Alfonso X El Sabio University, 28691 Madrid, Spain
| | - Juan Ramón Heredia-Elvar
- Department of Physical Activity and Sports Science, Alfonso X El Sabio University, 28691 Madrid, Spain
| | - Luis Maicas-Pérez
- Department of Physical Activity and Sports Science, Alfonso X El Sabio University, 28691 Madrid, Spain
| | - Ana María Cañuelo-Márquez
- Department of Physical Activity and Sports Science, Alfonso X El Sabio University, 28691 Madrid, Spain
| | | | | | | | - Pablo García-Fernández
- Department of Radiology, Rehabilitation and Physiotherapy, Complutense University of Madrid, 28040 Madrid, Spain
- IdISSC, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos, 28040 Madrid, Spain
- Correspondence:
| | - José Luis Maté-Muñoz
- Department of Radiology, Rehabilitation and Physiotherapy, Complutense University of Madrid, 28040 Madrid, Spain
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22
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Training-Induced Muscle Fatigue with a Powered Lower-Limb Exoskeleton: A Preliminary Study on Healthy Subjects. Med Sci (Basel) 2022; 10:medsci10040055. [PMID: 36278525 PMCID: PMC9590077 DOI: 10.3390/medsci10040055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/12/2022] [Accepted: 09/22/2022] [Indexed: 11/16/2022] Open
Abstract
Powered lower-limb exoskeletons represent a promising technology for helping the upright stance and gait of people with lower-body paralysis or severe paresis from spinal cord injury. The powered lower-limb exoskeleton assistance can reduce the development of lower-limb muscular fatigue as a risk factor for spasticity. Therefore, measuring powered lower-limb exoskeleton training-induced fatigue is relevant to guiding and improving such technology’s development. In this preliminary study, thirty healthy subjects (age 23.2 ± 2.7 years) performed three motor tasks: (i) walking overground (WO), (ii) treadmill walking (WT), (iii) standing and sitting (STS) in three separate exoskeleton-based training sessions of 60 min each. The changes in the production of lower-limb maximal voluntary isometric contraction (MVIC) were assessed for knee and ankle dorsiflexion and extension before and after the three exoskeleton-based trained motor tasks. The MVIC forces decreased significantly after the three trained motor tasks except for the ankle dorsiflexion. However, no significant interaction was found between time (before-, and after-training) and the training sessions except for the knee flexion, where significant fatigue was induced by WO and WT trained motor tasks. The results of this study pose the basis to generate data useful for a better approach to the exoskeleton-based training. The STS task leads to a lower level of muscular fatigue, especially for the knee flexor muscles.
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23
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Cristina-Souza G, Santos PS, Santos-Mariano AC, Coelho DB, Rodacki A, DE-Oliveira FR, Bishop DJ, Bertuzzi R, Lima-Silva AE. Caffeine Increases Endurance Performance via Changes in Neural and Muscular Determinants of Performance Fatigability. Med Sci Sports Exerc 2022; 54:1591-1603. [PMID: 35969166 DOI: 10.1249/mss.0000000000002944] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PURPOSE In the present study, we tested the hypothesis that caffeine would increase endurance performance via attenuation of neural and muscular determinants of performance fatigability during high-intensity, whole-body exercise. METHODS Ten healthy males cycled until exhaustion (89% ± 2% of V̇O2max) after the ingestion of caffeine or placebo. During another four visits, the same exercise was performed after either caffeine or placebo ingestion but with exercise discontinued after completing either 50% or 75% of the duration of placebo trial. An additional trial with caffeine ingestion was also performed with interruption at the placebo time to exhaustion (isotime). Performance fatigability was measured via changes in maximal voluntary contraction, whereas neural and muscular determinants of performance fatigability were quantified via preexercise to postexercise decrease in quadriceps voluntary activation (VA) and potentiated twitch force, respectively. RESULTS Compared with the placebo, caffeine increased time to exhaustion (+14.4 ± 1.6%, P = 0.017, 314.4 ± 47.9 vs 354.9 ± 40.8 s). Caffeine did not change the rate of decline in maximal voluntary contraction (P = 0.209), but caffeine reduced the twitch force decline at isotime when stimulating at single twitch (-58.6 ± 22.4 vs -45.7 ± 21.9%, P = 0.014) and paired 10 Hz electrical stimuli (-37.3 ± 13.2 vs -28.2 ± 12.9%, P = 0.025), and reduced the amplitude of electromyography signal during cycling at isotime (P = 0.034). The decline in VA throughout the trial was lower (P = 0.004) with caffeine (-0.5 ± 4.2%) than with placebo (-5.8 ± 8.5%). Caffeine also maintained peripheral oxygen saturation at higher levels (95.0 ± 1.9%) than placebo (92.0 ± 6.2%, P = 0.016). CONCLUSIONS Caffeine ingestion improves performance during high-intensity, whole-body exercise via attenuation of exercise-induced reduction in VA and contractile function.
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Affiliation(s)
| | | | | | | | - Andre Rodacki
- Department of Physical Education, Federal University of Paraná, Paraná, BRAZIL
| | | | - David J Bishop
- Institute for Health and Sport, Victoria University, Melbourne, AUSTRALIA
| | - Romulo Bertuzzi
- Endurance Performance Research Group (GEDAE-USP), University of São Paulo, São Paulo, BRAZIL
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24
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Royer N, Duboeuf M, Camdessanché JP, Millet G. Prevalence of fatigue and its explicative variables among people with multiple sclerosis. NeuroRehabilitation 2022; 51:509-517. [DOI: 10.3233/nre-220111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Fatigue is the most prevalent symptom among people with multiple sclerosis (PwMS). Although exercise effectively reduces fatigue, the relationship between daily physical activity and fatigue has only recently been demonstrated. OBJECTIVE: The aim of this study was to evaluate the prevalence of fatigue and to understand the relationship with several variables in French PwMS. METHODS: Data were collected from 191 PwMS using Modified Fatigue Impact Scale (MFIS) and Fatigue Severity Scale (FSS) for fatigue, and the Godin Leisure-Time Exercise Questionnaire (GLTEQ) for physical activity. RESULTS: 110 PwMS (57%), 35 PwMS (18%) and 46 PwMS (24%) were considered as fatigued, non-fatigued and in the grey zone, respectively. Greater physical activity was observed in non-fatigued PwMS (20.2±19.8) compared to fatigued PwMS (12.5±14.1). FSS and MFIS scores were associated with physical activity (r = –0.28 and r = –0.25, respectively, p < 0.05). Using multivariate analysis, disability, physical activity and being unemployed explained 21% of the variance of the MFIS. CONCLUSIONS: The present study confirms that physical activity and fatigue are associated. Disability and unemployment status should also to be consider when assessing fatigue. Activity-oriented health policies should be redesigned to improve fatigue among PwMS.
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Affiliation(s)
- Nicolas Royer
- Inter-University Laboratory of Human Movement Biology, UJM-Saint-Etienne, University of Lyon, Saint-Etienne, France
| | - Marine Duboeuf
- Department of Neurology, University Hospital of Saint-Etienne, Saint-Etienne, France
| | | | - Guillaume Millet
- Inter-University Laboratory of Human Movement Biology, UJM-Saint-Etienne, University of Lyon, Saint-Etienne, France
- Institut Universitaire de France (IUF), Saint-Etienne, France
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25
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Effectiveness of Resistance Training on Fatigue in Patients Undergoing Cancer Treatment: A Meta-Analysis of Randomized Clinical Trials. Int J Breast Cancer 2022; 2022:9032534. [PMID: 35979509 PMCID: PMC9378000 DOI: 10.1155/2022/9032534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/21/2022] [Indexed: 11/17/2022] Open
Abstract
Objective. To assess the effectiveness of the resistance training to improve fatigue levels in people with cancer who are enrolled in adjuvant and/or neoadjuvant treatment. Methods. MEDLINE, Web of Science, Embase, SPORTDiscus, LILACS, CENTRAL, and CINAHL databases were searched from May to December 7, 2021. Randomized clinical trials (RCT) that evaluate the effects of resistance training on fatigue levels in people undergoing cancer treatment were included. The PEDro scale was considered to assess methodological quality of studies, and the evidence was summarized through the GRADE system. The standardized average differences, effect size, and inverse variance model for meta-analysis were calculated. Results. Fifteen RCT for qualitative synthesis and thirteen for meta-analysis were selected. A moderate to high level of evidence of resistance training was identified to improve fatigue in people undergoing cancer treatment. Meta-analysis showed a significant reduction in fatigue (
,
, -0.12,
) after 10 to 35 sessions of resistance training. Conclusion. The 10 to 35 sessions of resistance training are effective in reducing fatigue level in cancer patients who are undergoing cancer treatment and have a moderate level of quality evidence.
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26
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Brownstein CG, Twomey R, Temesi J, Medysky ME, Culos-Reed SN, Millet GY. Mechanisms of Neuromuscular Fatigability in People with Cancer-Related Fatigue. Med Sci Sports Exerc 2022; 54:1355-1363. [PMID: 35394468 DOI: 10.1249/mss.0000000000002919] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Cancer-related fatigue (CRF) is a debilitating symptom that affects around one-third of people for months or years after cancer treatment. In a recent study, we found that people with posttreatment CRF have greater neuromuscular fatigability. The aim of this secondary analysis was to examine the etiology of neuromuscular fatigability in people with posttreatment CRF. METHODS Ninety-six people who had completed cancer treatment were dichotomized into two groups (fatigued and nonfatigued) based on a clinical cut point for fatigue. Alterations in neuromuscular function (maximal voluntary contraction peak force, voluntary activation, potentiated twitch force, and EMG) in the knee extensors were assessed across three common stages of an incremental cycling test. Power outputs during the fatigability test were expressed relative to gas exchange thresholds to assess relative exercise intensity. RESULTS The fatigued group had a more pronounced reduction in maximal voluntary contraction peak force and potentiated twitch force throughout the common stages of the incremental cycling test (main effect of group: P < 0.001, ηp2 = 0.18 and P = 0.029, ηp2 = 0.06, respectively). EMG was higher during cycling in the fatigued group (main effect of group: P = 0.022, ηp2 = 0.07). Although the relative intensity of cycling was higher in the fatigued group at the final common stage of cycling, this was not the case during the initial two stages, despite the greater impairments in neuromuscular function. CONCLUSIONS Our results suggest that the rapid impairments in neuromuscular fatigability in people with CRF were primarily due to disturbances at the level of the muscle rather than the central nervous system. This could affect the ability to tolerate daily physical activities.
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Affiliation(s)
- Callum G Brownstein
- Inter-university Laboratory of Human Movement Biology, UJM-Saint-Etienne, University of Lyon, Saint-Etienne, FRANCE
| | | | | | - Mary E Medysky
- Faculty of Kinesiology, University of Calgary, Calgary, CANADA
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27
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Liu Y, Li C, Shen X, Liu Y. The use of traditional Chinese medicines in relieving exercise-induced fatigue. Front Pharmacol 2022; 13:969827. [PMID: 35935864 PMCID: PMC9353218 DOI: 10.3389/fphar.2022.969827] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2022] [Accepted: 07/04/2022] [Indexed: 11/17/2022] Open
Abstract
Exercise-induced fatigue is a non-pathological fatigue and indicated by a reduction of muscle performance that is caused by excessive physical activity. It seriously affects the daily lives of people, in particular athletes, military personnel, and manual laborers. In recent years, increasing attention has been paid to improving the adverse effect of exercise-induced fatigue on people’s daily activities. Thus, studies and applications of traditional Chinese medicines (TCMs) in relieving exercise-induced fatigue have become the focus because of their good curative effects with fewer side effects. This review aims to document and summarize the critical and comprehensive information about the biological processes of exercise-induced fatigue, and to know the types of TCMs, their active components, and possible molecular mechanisms in alleviating exercise-induced fatigue. The peripheral and central mechanisms that cause exercise-induced fatigue have been summarized. A total of 47 exercise-induced fatigue relief TCMs have been collected, mostly including the types of visceral function regulation and emotional adjustment TCMs. Polysaccharides, terpenes, flavonoids/polyphenols are demonstrated to be the major bioactive components. The underlying molecular mechanisms are mainly related to the improvement of energy metabolism, elimination of excess metabolites, inhibition of oxidative stress and inflammatory response, regulation of HPA axis and neurotransmitters. Although current results are obtained mostly from animal models, the clinic trials are still insufficient, and a very few TCMs have been reported to possess potential hepatotoxicity. These findings still offer great reference value, and the significant efficacy in relieving exercise-induced fatigue is impossible to ignore. This review is expected to give insights into the research and development of new TCMs-derived drugs and health care products in relieving exercise-induced fatigue.
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Affiliation(s)
- Yuzhou Liu
- School of Leisure Sports, Chengdu Sport University, Chengdu, China
| | - Congying Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofei Shen
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiaofei Shen, ; Yue Liu,
| | - Yue Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Ethnic Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- *Correspondence: Xiaofei Shen, ; Yue Liu,
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28
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Neuromuscular Fatigue Responses of Endurance- and Strength-Trained Athletes during Incremental Cycling Exercise. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19148839. [PMID: 35886690 PMCID: PMC9319915 DOI: 10.3390/ijerph19148839] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 07/18/2022] [Accepted: 07/19/2022] [Indexed: 02/04/2023]
Abstract
This study explored the development of neuromuscular fatigue responses during progressive cycling exercise. The sample comprised 32 participants aged 22.0 ± 0.54 years who were assigned into three groups: endurance-trained group (END, triathletes, n = 10), strength-trained group (STR, bodybuilders, n = 10) and control group (CG, recreationally active students, n = 12). The incremental cycling exercise was performed using a progressive protocol starting with a 3 min resting measurement and then 50 W workload with subsequent constant increments of 50 W every 3 min until 200 W. Surface electromyography (SEMG) of rectus femoris muscles was recorded during the final 30 s of each of the four workloads. During the final 15 s of each workload, participants rated their overall perception of effort using the 20-point rating of the perceived exertion (RPE) scale. Post hoc Tukey’s HSD testing showed significant differences between the END and STR groups in median frequency and mean power frequency across all workloads (p < 0.001 and p < 0.01, respectively). Athletes from the END group had significantly lower electromyogram amplitude responses than those from the STR (p = 0.0093) and CG groups (p = 0.0006). Increasing RPE points from 50 to 200 W were significantly higher in the STR than in the END group (p < 0.001). In conclusion, there is a significant variation in the neuromuscular fatigue profiles between athletes with different training backgrounds when a cycling exercise is applied. The approximately linear trends of the SEMG and RPE values of both groups of athletes with increasing workload support the increased skeletal muscle recruitment with perceived exertion or fatiguing effect.
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29
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López-Martínez MI, Miguel M, Garcés-Rimón M. Protein and Sport: Alternative Sources and Strategies for Bioactive and Sustainable Sports Nutrition. Front Nutr 2022; 9:926043. [PMID: 35782926 PMCID: PMC9247391 DOI: 10.3389/fnut.2022.926043] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Accepted: 05/17/2022] [Indexed: 11/13/2022] Open
Abstract
Nutrition and sport play an important role in achieving a healthy lifestyle. In addition to the intake of nutrients derived from the normal diet, some sport disciplines require the consumption of supplements that contribute positively to improved athletic performance. Protein intake is important for many aspects related to health, and current evidence suggests that some athletes require increased amounts of this nutrient. On the other hand, society's demand for more environmentally friendly products, focus on the search for alternative food sources more sustainable. This review aims to summarize the latest research on novel strategies and sources for greener and functional supplementation in sport nutrition. Alternative protein sources such as insects, plants or mycoproteins have proven to be an interesting substrate due to their high added value in terms of bioactivity and sustainability. Protein hydrolysis has proven to be a very useful technology to revalue by-products, such as collagen, by producing bioactive peptides beneficial on athletes performance and sport-related complications. In addition, it has been observed that certain amino acids from plant sources, as citrulline or theanine, can have an ergogenic effect for this target population. Finally, the future perspectives of protein supplementation in sports nutrition are discussed. In summary, protein supplementation in sports nutrition is a very promising field of research, whose future perspective lies with the search for alternatives with greater bioactive potential and more sustainable than conventional sources.
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Affiliation(s)
- Manuel I. López-Martínez
- Departamento de Bioactividad y Análisis de Alimenos, Instituto de Investigación en Ciencias de la Alimentación (CIAL, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid), Madrid, Spain
| | - Marta Miguel
- Departamento de Bioactividad y Análisis de Alimenos, Instituto de Investigación en Ciencias de la Alimentación (CIAL, Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid), Madrid, Spain
- *Correspondence: Marta Miguel
| | - Marta Garcés-Rimón
- Grupo de Investigación en Biotecnología Alimentaria, Universidad Francisco de Vitoria, Madrid, Spain
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30
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Ozimek M, Ambroży T, Krasavina T, Lazareva I, Popova C, Rydzik Ł, Rybakov V, Gurevich K, Dias S, Binkley B, Mikhailenko R, Tsymbal A, Zadarko E, Zaborova V. Acute Effects of Partial Range of Motion Resistance Training and Increases in Blood Lactate Impact Accuracy of Penalty Kicks in Soccer Players. BIOMED RESEARCH INTERNATIONAL 2022; 2022:4769560. [PMID: 35722458 PMCID: PMC9200541 DOI: 10.1155/2022/4769560] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2022] [Accepted: 05/04/2022] [Indexed: 11/18/2022]
Abstract
The purpose of this investigation was to assess the acute effects of partial range of motion (pROM) exercises, on the accuracy of soccer penalty kicks on goal. This method limits the joint from moving through the complete length of a motion, creates an occlusion effect, and thus causes the type 1 muscle fibers to work anaerobically. Thirty-six soccer players, with 5-8 years of soccer playing experience, were pretested for accuracy then retested (rtt = 0.92) and divided into random groups from the Associação Banco do Brasil Futebol Clube-Group A, Paraná Futebol Clube-Group P, and Coritiba Futebol Clube-Group C. Groups were composed of 12 people performing full range of motion (fROM) exercises or pROM exercises. Both groups performed 5 sets of back squats at 50% of body weight in sets of 40 seconds with metronome tempo of 56 bpm for an average of 10-12 repetitions per 40-second set. Blood samples were collected post-warm-up, after the 3rd set, and following the 5th set for both groups, within 3-5 minutes of cessation of exercise. Athletes performing fROM exercises showed increased blood lactate from 2.69 ± 0.2 to 4.0 ± 1.2 mmol/L (p < 0.05), and in pROM, blood lactate increased from 2.48 ± 0.42 to 10.29 ± 1.3 mmol/L (p < 0.001). In fROM, accuracy decreased from 42.96 ± 13.39% to 41.37 ± 17.25% (p > 0.1), a slight decrease, while in the pROM groups, accuracy decreased from 45.42 ± 14.93% to 24.53 ± 10.2% (p < 0.001). The calculations demonstrating average percentages of accuracy are presented in the tables. These findings support that pROM exercises significantly increase blood lactate resulting in a reduction in soccer kick accuracy. This decrease in accuracy directly correlates to the accumulation of lactic acid and hydrogen ions (H+) and demonstrates that pROM strength training should not be utilized prior to a sport-specific session in order to avoid interference with the development of special skills.
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Affiliation(s)
- Mariusz Ozimek
- Institute of Sports Sciences, University of Physical Education, 31-571 Krakow, Poland
| | - Tadeusz Ambroży
- Institute of Sports Sciences, University of Physical Education, 31-571 Krakow, Poland
| | - Tatiana Krasavina
- Institute of Clinical Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991, Trubetskaya Street, 8/2, Moscow, Russia
| | - Irina Lazareva
- Institute of Clinical Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991, Trubetskaya Street, 8/2, Moscow, Russia
| | - Christina Popova
- Institute of Clinical Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991, Trubetskaya Street, 8/2, Moscow, Russia
| | - Łukasz Rydzik
- Institute of Sports Sciences, University of Physical Education, 31-571 Krakow, Poland
| | - Vitaly Rybakov
- Sports Adaptology Laboratory, Moscow Institute of Physics and Technology (National Research University), 141700, Institutskiy Pereulok 9, Dolgoprudniy, Moscow Region, Russia
| | - Konstantin Gurevich
- UNESCO Chair Healthy Lifestyle for Sustainable Development, Moscow State University of Medicine and Dentistry, 127473, Delegastkaja Street, 20/1, Moscow, Russia
| | - Stefane Dias
- Department of Health and Human Performance and Exercise Science, Keiser University, 5600 Lake Underhill Rd. Orlando, Florida 32807, USA
| | - Brian Binkley
- Department of Health and Human Performance and Exercise Science, Keiser University, 5600 Lake Underhill Rd. Orlando, Florida 32807, USA
| | - Rokaya Mikhailenko
- Department of Health and Human Performance and Exercise Science, Keiser University, 5600 Lake Underhill Rd. Orlando, Florida 32807, USA
| | - Alexander Tsymbal
- Institute of Sports Sciences, University of Physical Education, 31-571 Krakow, Poland
| | - Emilian Zadarko
- College of Medical Sciences, Institute of Physical Culture Studies, University of Rzeszow, Poland
| | - Victoria Zaborova
- Institute of Clinical Medicine, Sechenov First Moscow State Medical University (Sechenov University), 119991, Trubetskaya Street, 8/2, Moscow, Russia
- Sports Adaptology Laboratory, Moscow Institute of Physics and Technology (National Research University), 141700, Institutskiy Pereulok 9, Dolgoprudniy, Moscow Region, Russia
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31
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Hadjizadeh Anvar S, Kordi MR, Alizadeh S, Ramsay E, Shabkhiz F, Behm DG. Lack of Evidence for Crossover Fatigue with Plantar Flexor Muscles. J Sports Sci Med 2022; 21:214-223. [PMID: 35719232 PMCID: PMC9157513 DOI: 10.52082/jssm.2022.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/01/2022] [Indexed: 06/15/2023]
Abstract
The occurrence and mechanisms underlying non-local or crossover muscle fatigue is an ongoing issue. This study aimed to investigate crossover fatigue of the plantar flexor muscles. Sixteen recreationally active males (n = 6) and females (n = 10) visited the laboratory for four sessions and performed a single 5-s pre-test maximal voluntary isometric contraction (MVIC) with each plantar flexors muscle. Thereafter, the fatigue intervention involved two 100-s MVICs (60-s recovery) with their dominant plantar flexors or rested for 260-s (control). Subsequently, in two separate sessions, Hoffman reflexes (H-reflex) were evoked in the non-dominant, non-exercised, leg before and following the dominant leg fatigue or control intervention (Fatigue-Reflex and Control-Reflex conditions). MVIC forces and volitional (V)-waves were monitored in the non-dominant leg in the other two sessions (Fatigue-MVIC and Control-MVIC) before and after the intervention (fatigue or control) as well as during 12 repeated MVICs and immediately thereafter. Despite the force reduction in the dominant leg (42.4%, p = 0.002), no crossover force deficit with single (F(1,9) = 0.02, p = 0.88, pƞ2 = 0.003) or repeated (F(1,9) = 0.006, p = 0.93, pƞ2 = 0.001) MVIC testing were observed. The H-reflex did not change after the fatigue (F(1,7) = 0.51; p = 0.49; pƞ2 = 0.06) or repeated MVICs (F(1,8) = 0.27; p = 0.61; pƞ2 = 0.03). There were also no crossover effects of fatigue on the V-wave with single (F(1,8) = 3.71, p = 0.09, pƞ2 = 0.31) or repeated MVICs (F(1,6) = 1.45, p = 0.27, pƞ2 = 0.19). Crossover fatigue was not evident with the plantar flexors nor any significant changes in H-reflex and V-waves in the soleus muscle. This finding suggests that crossover fatigue may not necessarily occur in slow-twitch predominant muscle groups.
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Affiliation(s)
- Saman Hadjizadeh Anvar
- School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's Newfoundland and Labrador (NL), Canada
- Faculty of Physical Education & Sport Sciences, University of Tehran, Tehran, Iran
| | - Mohammad Reza Kordi
- Faculty of Physical Education & Sport Sciences, University of Tehran, Tehran, Iran
| | - Shahab Alizadeh
- School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's Newfoundland and Labrador (NL), Canada
| | - Emma Ramsay
- School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's Newfoundland and Labrador (NL), Canada
| | - Fatemeh Shabkhiz
- Faculty of Physical Education & Sport Sciences, University of Tehran, Tehran, Iran
| | - David G Behm
- School of Human Kinetics and Recreation, Memorial University of Newfoundland, St. John's Newfoundland and Labrador (NL), Canada
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32
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Morel J, Infantino P, Gergelé L, Lapole T, Souron R, Millet GY. Prevalence of self-reported fatigue in intensive care unit survivors 6 months-5 years after discharge. Sci Rep 2022; 12:5631. [PMID: 35379874 PMCID: PMC8979153 DOI: 10.1038/s41598-022-09623-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 03/11/2022] [Indexed: 12/18/2022] Open
Abstract
Prolonged stays in intensive care units (ICU) are responsible for long-lasting consequences, fatigue being one of the more debilitating. Yet, fatigue prevalence for patients that have experienced ICU stays remains poorly investigated. This study aimed to evaluate fatigue prevalence and the level of physical activity in ICU survivors from 6 months to 5 years after ICU discharge using the Functional Assessment of Chronic Illness Therapy Fatigue (FACIT-F) and Godin questionnaires, respectively. Data from 351 ICU survivors (out of 1583 contacted) showed that 199 (57%) and 152 (43%) were considered as fatigued and non-fatigued, respectively. The median FACIT-F scores for fatigued versus non-fatigued ICU survivors were 21 (14–27) and 45 (41–48), respectively (p < 0.001). Time from discharge had no significant effect on fatigue prevalence (p = 0.30) and fatigued ICU survivors are less active (p < 0.001). In multivariate analysis, the only risk factor of being fatigued that was identified was being female. We reported a high prevalence of fatigue among ICU survivors. Sex was the only independent risk factor of being fatigued, with females being more prone to this symptom. Further studies should consider experimental approaches that help us understand the objective causes of fatigue, and to build targeted fatigue management interventions.
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Affiliation(s)
- Jérôme Morel
- Département Anesthésie Réanimation, Centre Hospitalier Universitaire de Saint-Etienne, Saint-Etienne, France.,Université de Lyon, UJM, Inter-university Laboratory of Human Movement Biology, EA 7424, 42023, Saint-Etienne, France
| | - Pascal Infantino
- Département Anesthésie Réanimation, Centre Hospitalier Universitaire de Saint-Etienne, Saint-Etienne, France
| | - Laurent Gergelé
- Ramsay Générale de Santé, Hôpital Privé de la Loire, Saint-Etienne, France
| | - Thomas Lapole
- Université de Lyon, UJM, Inter-university Laboratory of Human Movement Biology, EA 7424, 42023, Saint-Etienne, France
| | - Robin Souron
- Université de Lyon, UJM, Inter-university Laboratory of Human Movement Biology, EA 7424, 42023, Saint-Etienne, France.,Nantes Université, Movement-Interactions-Performance, MIP, UR 4334, 44000, Nantes, France
| | - Guillaume Y Millet
- Université de Lyon, UJM, Inter-university Laboratory of Human Movement Biology, EA 7424, 42023, Saint-Etienne, France. .,Institut Universitaire de France (IUF), LIBM, IRMIS, Campus Santé Innovations, 10 rue de la Marandière, 42270, Saint-Priest en Jarez, France.
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Forman CR, Jacobsen KJ, Karabanov AN, Nielsen JB, Lorentzen J. Corticomuscular coherence is reduced in relation to dorsiflexion fatigability to the same extent in adults with cerebral palsy as in neurologically intact adults. Eur J Appl Physiol 2022; 122:1459-1471. [PMID: 35366090 DOI: 10.1007/s00421-022-04938-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Accepted: 03/18/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE Fatigue is frequent in adults with cerebral palsy (CP) and it is unclear whether this is due to altered corticospinal drive. We aimed to compare changes in corticospinal drive following sustained muscle contractions in adults with CP and neurologically intact (NI) adults. METHODS Fourteen adults with CP [age 37.6 (10.1), seven females, GMFCS levels I-II] and ten NI adults [age 35.4 (10.3), 6 females] performed 1-min static dorsiflexion at 30% of maximal voluntary contraction (MVC) before and after a submaximal contraction at 60% MVC. Electroencephalography (EEG) and electromyography (EMG) from the anterior tibial muscle were analyzed to quantify the coupling, expressed by corticomuscular coherence (CMC). RESULTS Adults with CP had lower MVCs but similar time to exhaustion during the relative load of the fatigability trial. Both groups exhibited fatigability-related changes in EMG median frequency and EMG amplitude. The CP group showed lower beta band (16-35 Hz) CMC before fatigability, but both groups decreased beta band CMC following fatigability. There was a linear correlation between decrease of beta band CMC and fatigability-related increase in EMG. CONCLUSION Fatigability following static contraction until failure was related to decreased beta band CMC in both NI adults and adults with CP. Our findings indicate that compensatory mechanisms to fatigability are present in both groups, and that fatigability affects the corticospinal drive in the same way. We suggest that the perceived physical fatigue in CP is related to the high relative load of activities of daily living rather than any particular physiological mechanism.
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Affiliation(s)
- Christian Riis Forman
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, 2200, Copenhagen N, Denmark. .,Elsass Foundation, Charlottenlund, Denmark.
| | - Kim Jennifer Jacobsen
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, 2200, Copenhagen N, Denmark.,Department of Nutrition, Exercise and Sports (NEXS), University of Copenhagen, Copenhagen, Denmark
| | - Anke Ninija Karabanov
- Department of Nutrition, Exercise and Sports (NEXS), University of Copenhagen, Copenhagen, Denmark
| | - Jens Bo Nielsen
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, 2200, Copenhagen N, Denmark.,Elsass Foundation, Charlottenlund, Denmark
| | - Jakob Lorentzen
- Department of Neuroscience, University of Copenhagen, Blegdamsvej 3, 2200, Copenhagen N, Denmark.,Elsass Foundation, Charlottenlund, Denmark
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Voet NBM, Saris CGJ, Thijssen DHJ, Bastiaans V, Sluijs DE, Janssen MMHP. Surface Electromyography Thresholds as a Measure for Performance Fatigability During Incremental Cycling in Patients With Neuromuscular Disorders. Front Physiol 2022; 13:821584. [PMID: 35370798 PMCID: PMC8969223 DOI: 10.3389/fphys.2022.821584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Accepted: 02/08/2022] [Indexed: 11/13/2022] Open
Abstract
In healthy persons, there is an excellent relation between the timing of the (two) surface electromyography (sEMG) thresholds and the (two) ventilatory thresholds during exercise. The primary aim of this study was to determine the relative timing of both sEMG and ventilatory thresholds in patients with neuromuscular disorders compared with healthy subjects during a maximal ergospirometry cycling test. We hypothesized that in patients with neuromuscular disorders, the sEMG thresholds would occur relatively earlier in time than the ventilatory thresholds, compared to healthy subjects, because performance fatigability occurs more rapidly. In total, 24 healthy controls and 32 patients with a neuromuscular disorder performed a cardiopulmonary exercise test on a bicycle using a 10-min ramp protocol, during which we collected ergospirometry data: power at both ventilatory and sEMG thresholds, and sEMG data of lower leg muscles. In line with our hypothesis, normalized values for all thresholds were lower for patients than healthy subjects. These differences were significant for the first ventilatory (p = 0.008) and sEMG threshold (p < 0.001) but not for the second sEMG (p = 0.053) and ventilatory threshold (p = 0.238). Most parameters for test–retest reliability of all thresholds did not show any fixed bias, except for the second ventilatory threshold. The feasibility of the sEMG thresholds was lower than the ventilatory thresholds, particularly of the first sEMG threshold. As expected, the sEMG thresholds, particularly the first threshold, occurred relatively earlier in time than the ventilatory thresholds in patients compared with healthy subjects. A possible explanation could be (a combination of) a difference in fiber type composition, disuse, and limited muscle-specific force in patients with neuromuscular disorders. sEMG measurements during submaximal dynamic exercises are needed to generalize the measurements to daily life activities for future use in prescribing and evaluating rehabilitation interventions.
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Affiliation(s)
- Nicoline B. M. Voet
- Department of Rehabilitation, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands
- Klimmendaal, Rehabilitation Center, Arnhem, Netherlands
- *Correspondence: Nicoline B. M. Voet,
| | - Christiaan G. J. Saris
- Department of Neurology, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands
| | - Dick H. J. Thijssen
- Department of Physiology, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands
| | - Vincent Bastiaans
- Sports Medicine Center, HAN Seneca, HAN University of Applied Sciences, Nijmegen, Netherlands
| | - David E. Sluijs
- Sports Medicine Center, HAN Seneca, HAN University of Applied Sciences, Nijmegen, Netherlands
| | - Mariska M. H. P. Janssen
- Department of Rehabilitation, Radboud University Medical Center, Donders Institute for Brain, Cognition and Behaviour, Nijmegen, Netherlands
- Klimmendaal, Rehabilitation Center, Arnhem, Netherlands
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Di Domenico H, Beaume JB, Peyrard A, Samozino P, Bowen M, Hintzy F, Millet GP, Hayes M, Lapole T, Rupp T. Neuromuscular fatigability during repeated sprints assessed with an innovative cycle ergometer. Eur J Appl Physiol 2022; 122:1189-1204. [PMID: 35212845 DOI: 10.1007/s00421-021-04871-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 12/07/2021] [Indexed: 11/03/2022]
Abstract
PURPOSE Repeated sprint ability is an integral component of team sports. This study aimed to evaluate fatigability development and its aetiology during and immediately after a cycle repeated sprint exercise performed until a given fatigability threshold. METHODS On an innovative cycle ergometer, 16 healthy males completed an RSE (10-s sprint/28-s recovery) until task failure (TF): a 30% decrease in sprint mean power (Pmean). Isometric maximum voluntary contraction of the quadriceps (IMVC), central alterations [voluntary activation (VA)], and peripheral alterations [twitch (Pt)] were evaluated before (pre), immediately after each sprint (post), at TF and 3 min after. Sprints were expressed as a percentage of the total number of sprints to TF (TSTF). Individual data were extrapolated at 20, 40, 60, and 80% TSTF. RESULTS Participants completed 9.7 ± 4.2 sprints before reaching a 30% decrease in Pmean. Post-sprint IMVCs were decreased from pre to 60% TSTF and then plateaued (pre: 345 ± 56 N, 60% 247 ± 55 N, TF: 233 ± 57 N, p < 0.001). Pt decreased from 20% and plateaued after 40% TSTF (p < 0.001, pre-TF = - 45 ± 13%). VA was not significantly affected by repeated sprints until 60% TSTF (pre-TF = - 6.5 ± 8.2%, p = 0.036). Unlike peripheral parameters, VA recovered within 3 min (p = 0.042). CONCLUSION During an RSE, Pmean and IMVC decreases were first concomitant to peripheral alterations up to 40% TSTF and central alterations was only observed in the second part of the test, while peripheral alterations plateaued. The distinct recovery kinetics in central versus peripheral components of fatigability further confirm the necessity to reduce traditional delays in neuromuscular fatigue assessment post-exercise.
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Affiliation(s)
- H Di Domenico
- Inter-University Laboratory of Human Movement Sciences, Univ Savoie Mont-Blanc, EA 7424, Chambéry, France
| | - J B Beaume
- Inter-University Laboratory of Human Movement Sciences, Univ Savoie Mont-Blanc, EA 7424, Chambéry, France
| | - A Peyrard
- Inter-University Laboratory of Human Movement Sciences, Univ Savoie Mont-Blanc, EA 7424, Chambéry, France
| | - P Samozino
- Inter-University Laboratory of Human Movement Sciences, Univ Savoie Mont-Blanc, EA 7424, Chambéry, France
| | - M Bowen
- Inter-University Laboratory of Human Movement Sciences, Univ Savoie Mont-Blanc, EA 7424, Chambéry, France
| | - F Hintzy
- Inter-University Laboratory of Human Movement Sciences, Univ Savoie Mont-Blanc, EA 7424, Chambéry, France
| | - G P Millet
- Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland
| | - M Hayes
- Environmental Extremes Laboratory, School of Sport and Health Sciences, University of Brighton, Eastbourne, UK
| | - T Lapole
- Inter-University Laboratory of Human Movement Sciences, Univ Lyon, UJM-Saint-Etienne, EA 7424, 42023, Saint-Étienne, France
| | - Thomas Rupp
- Inter-University Laboratory of Human Movement Sciences, Univ Savoie Mont-Blanc, EA 7424, Chambéry, France.
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Yan K, Gao H, Liu X, Zhao Z, Gao B, Zhang L. Establishment and identification of an animal model of long-term exercise-induced fatigue. Front Endocrinol (Lausanne) 2022; 13:915937. [PMID: 36093084 PMCID: PMC9459130 DOI: 10.3389/fendo.2022.915937] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/15/2022] [Indexed: 12/01/2022] Open
Abstract
In competitive sports, the training load is close to the human physiological limit, which will inevitably lead to exercise-induced fatigue. If fatigue cannot be recovered in time, it will eventually lead to excessive training and affect sport performance. Therefore, fatigue has become an important part of the physical function assessment for athletes. This paper will review animal models of long-term exercise-induced fatigue, modeling schemes of mice under treadmill and swimming training, phenotypes of long-term exercise-induced fatigue (e.g., nervous system damage, myocardial cell damage, bone mineral density changes, and skeletal muscle damage), and fatigue indicators. The relationship between physiological indicators and biomarkers and long-term exercise-induced fatigue is analyzed to promote exercise-induced fatigue monitoring. This paper attempts to provide a reference for the selection of animal models of long-term exercise-induced fatigue and provide a new theoretical basis for medical supervision and recovery of exercise-induced fatigue.
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Affiliation(s)
- Kai Yan
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Haoyang Gao
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Xiaohua Liu
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Zhonghan Zhao
- School of Kinesiology, Shanghai University of Sport, Shanghai, China
| | - Bo Gao
- Institute of Orthopaedic Surgery, Xijing Hospital, Fourth Military Medical University, Xi’an, China
- *Correspondence: Lingli Zhang, ; Bo Gao,
| | - Lingli Zhang
- College of Athletic Performance, Shanghai University of Sport, Shanghai, China
- *Correspondence: Lingli Zhang, ; Bo Gao,
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Physiological and psychosocial correlates of cancer-related fatigue. J Cancer Surviv 2021; 16:1339-1354. [PMID: 34609702 DOI: 10.1007/s11764-021-01115-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 09/15/2021] [Indexed: 12/17/2022]
Abstract
PURPOSE Cancer-related fatigue (CRF) is a common and distressing symptom of cancer that may persist for years following treatment completion. However, little is known about the pathophysiology of CRF. Using a comprehensive group of gold-standard physiological and psychosocial assessments, this study aimed to identify correlates of CRF in a heterogenous group of cancer survivors. METHODS Using a cross-sectional design to determine the physiological and psychosocial correlates of CRF, ninety-three cancer survivors (51 fatigued, 42 non-fatigued) completed assessments of performance fatigability (i.e. the decline in muscle strength during cycling), cardiopulmonary exercise testing, venous blood samples for whole blood cell count and inflammatory markers and body composition. Participants also completed questionnaires measuring demographic, treatment-related, and psychosocial variables. RESULTS Performance fatigability, time-to-task-failure, peak oxygen uptake (V̇O2peak), tumor necrosis factor-α (TNF-α), body fat percentage, and lean mass index were associated with CRF severity. Performance fatigability, V̇O2peak, TNF-α, and age explained 35% of the variance in CRF severity. Those with clinically-relevant CRF reported more pain, more depressive symptoms, less perceived social support, and were less physically active than non-fatigued cancer survivors. CONCLUSIONS The present study utilised a comprehensive group of gold-standard physiological and psychosocial assessments and the results give potential insight into the mechanisms underpinning the association between physical inactivity, physical deconditioning and CRF. IMPLICATIONS FOR CANCER SURVIVORS Given the associations between CRF and both physiological and psychosocial measures, this study identifies targets that can be measured by rehabilitation professionals and used to guide tailored interventions to reduce fatigue.
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Clos P, Mater A, Laroche D, Lepers R. Concentric versus eccentric cycling at equal power output or effort perception: Neuromuscular alterations and muscle pain. Scand J Med Sci Sports 2021; 32:45-59. [PMID: 34533875 DOI: 10.1111/sms.14053] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 06/16/2021] [Accepted: 09/14/2021] [Indexed: 12/24/2022]
Abstract
This study aimed to compare neuromuscular alterations and perceptions of effort and muscle pain induced by concentric and eccentric cycling performed at the same power output or effort perception. Fifteen participants completed three 30-min sessions: one in concentric at 60% peak power output (CON) and two in eccentric, at the same power output (ECCPOWER ) or same perceived effort (ECCEFFORT ). Muscle pain, perception of effort, oxygen uptake as well as rectus femoris and vastus lateralis electromyographic activities were collected when pedaling. The knee extensors maximal voluntary contraction (MVC) torque, the torque evoked by double stimulations at 100 Hz and 10 Hz (Dt100; Dt10), and the voluntary activation level (VAL) were evaluated before and after exercise. Power output was higher in ECCEFFORT than CON (89.1 ± 23.3% peak power). Muscle pain and effort perception were greater in CON than ECCPOWER (p < 0.03) while muscle pain was similar in CON and ECCEFFORT (p > 0.43). MVC torque, Dt100, and VAL dropped in all conditions (p < 0.04). MVC torque (p < 0.001) and the Dt10/ Dt100 ratio declined further in ECCEFFORT (p < 0.001). Eccentric cycling perceived as difficult as concentric cycling caused similar muscle pain but more MVC torque decrease. A given power output induced lower perceptions of pain and effort in eccentric than in concentric yet similar MVC torque decline. While neural impairments were similar in all conditions, eccentric cycling seemed to alter excitation-contraction coupling. Clinicians should thus be cautious when setting eccentric cycling intensity based on effort perception.
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Affiliation(s)
- Pierre Clos
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences du Sport, Dijon, France
| | - Adrien Mater
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences du Sport, Dijon, France
| | - Davy Laroche
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences du Sport, Dijon, France
| | - Romuald Lepers
- INSERM UMR1093-CAPS, Université Bourgogne Franche-Comté, UFR des Sciences du Sport, Dijon, France
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Gouraud E, Connes P, Gauthier-Vasserot A, Faes C, Merazga S, Poutrel S, Renoux C, Boisson C, Joly P, Bertrand Y, Hot A, Cannas G, Hautier C. Is Skeletal Muscle Dysfunction a Limiting Factor of Exercise Functional Capacity in Patients with Sickle Cell Disease? J Clin Med 2021; 10:jcm10112250. [PMID: 34067352 PMCID: PMC8196873 DOI: 10.3390/jcm10112250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 02/02/2023] Open
Abstract
Patients with sickle cell disease (SCD) have reduced functional capacity due to anemia and cardio-respiratory abnormalities. Recent studies also suggest the presence of muscle dysfunction. However, the interaction between exercise capacity and muscle function is currently unknown in SCD. The aim of this study was to explore how muscle dysfunction may explain the reduced functional capacity. Nineteen African healthy subjects (AA), and 24 sickle cell anemia (SS) and 18 sickle cell hemoglobin C (SC) patients were recruited. Maximal isometric torque (Tmax) was measured before and after a self-paced 6-min walk test (6-MWT). Electromyographic activity of the Vastus Lateralis was recorded. The 6-MWT distance was reduced in SS (p < 0.05) and SC (p < 0.01) patients compared to AA subjects. However, Tmax and root mean square value were not modified by the 6-MWT, showing no skeletal muscle fatigue in all groups. In a multiple linear regression model, genotype, step frequency and hematocrit were independent predictors of the 6-MWT distance in SCD patients. Our results suggest that the 6-MWT performance might be primarily explained by anemia and the self-paced step frequency in SCD patients attempting to limit metabolic cost and fatigue, which could explain the absence of muscle fatigue.
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Affiliation(s)
- Etienne Gouraud
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
- Correspondence:
| | - Philippe Connes
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
- Institute of Universities of France, CEDEX 05, 75231 Paris, France
| | - Alexandra Gauthier-Vasserot
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
- Hematology and Oncology Pediatric Unit, University Hospital of Lyon, 69008 Lyon, France;
- Reference Centre in Sickle Cell Disease, Thalassemia and Rare Red Blood Cell and Erythropoiesis Diseases, Hospices Civils de Lyon, 69003 Lyon, France; (S.M.); (S.P.); (A.H.)
| | - Camille Faes
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
| | - Salima Merazga
- Reference Centre in Sickle Cell Disease, Thalassemia and Rare Red Blood Cell and Erythropoiesis Diseases, Hospices Civils de Lyon, 69003 Lyon, France; (S.M.); (S.P.); (A.H.)
| | - Solène Poutrel
- Reference Centre in Sickle Cell Disease, Thalassemia and Rare Red Blood Cell and Erythropoiesis Diseases, Hospices Civils de Lyon, 69003 Lyon, France; (S.M.); (S.P.); (A.H.)
- Internal Medicine Department, Edouard-Herriot Hospital, 69003 Lyon, France
| | - Céline Renoux
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
- Laboratory of Biochemistry of Erythrocyte Pathologies, Biology Centre East, 69500 Bron, France
| | - Camille Boisson
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
| | - Philippe Joly
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
- Laboratory of Biochemistry of Erythrocyte Pathologies, Biology Centre East, 69500 Bron, France
| | - Yves Bertrand
- Hematology and Oncology Pediatric Unit, University Hospital of Lyon, 69008 Lyon, France;
- Reference Centre in Sickle Cell Disease, Thalassemia and Rare Red Blood Cell and Erythropoiesis Diseases, Hospices Civils de Lyon, 69003 Lyon, France; (S.M.); (S.P.); (A.H.)
| | - Arnaud Hot
- Reference Centre in Sickle Cell Disease, Thalassemia and Rare Red Blood Cell and Erythropoiesis Diseases, Hospices Civils de Lyon, 69003 Lyon, France; (S.M.); (S.P.); (A.H.)
- Internal Medicine Department, Edouard-Herriot Hospital, 69003 Lyon, France
| | - Giovanna Cannas
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
- Reference Centre in Sickle Cell Disease, Thalassemia and Rare Red Blood Cell and Erythropoiesis Diseases, Hospices Civils de Lyon, 69003 Lyon, France; (S.M.); (S.P.); (A.H.)
- Internal Medicine Department, Edouard-Herriot Hospital, 69003 Lyon, France
| | - Christophe Hautier
- Inter-University Laboratory of Human Movement Sciences (LIBM) EA7424, Team “Vascular Biology and Red Blood Cell”, University Claude Bernard Lyon 1, 69100 Villeurbanne, France; (P.C.); (A.G.-V.); (C.F.); (C.R.); (C.B.); (P.J.); (G.C.); (C.H.)
- Laboratory of Excellence “GR-Ex”, 75015 Paris, France
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Clemente FM, Akyildiz Z, Pino-Ortega J, Rico-González M. Validity and Reliability of the Inertial Measurement Unit for Barbell Velocity Assessments: A Systematic Review. SENSORS 2021; 21:s21072511. [PMID: 33916801 PMCID: PMC8038306 DOI: 10.3390/s21072511] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/20/2021] [Revised: 03/29/2021] [Accepted: 04/01/2021] [Indexed: 12/14/2022]
Abstract
The use of inertial measurement unit (IMU) has become popular in sports assessment. In the case of velocity-based training (VBT), there is a need to measure barbell velocity in each repetition. The use of IMUs may make the monitoring process easier; however, its validity and reliability should be established. Thus, this systematic review aimed to (1) identify and summarize studies that have examined the validity of wearable wireless IMUs for measuring barbell velocity and (2) identify and summarize studies that have examined the reliability of IMUs for measuring barbell velocity. A systematic review of Cochrane Library, EBSCO, PubMed, Scielo, Scopus, SPORTDiscus, and Web of Science databases was performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. From the 161 studies initially identified, 22 were fully reviewed, and their outcome measures were extracted and analyzed. Among the eight different IMU models, seven can be considered valid and reliable for measuring barbell velocity. The great majority of IMUs used for measuring barbell velocity in linear trajectories are valid and reliable, and thus can be used by coaches for external load monitoring.
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Affiliation(s)
- Filipe Manuel Clemente
- Instituto Politécnico de Viana do Castelo, Escola Superior Desporto e Lazer, Rua Escola Industrial e Comercial de Nun’Álvares, 4900-347 Viana do Castelo, Portugal
- Instituto de Telecomunicações, Delegação da Covilhã, 1049-001 Lisboa, Portugal
- Correspondence:
| | - Zeki Akyildiz
- Sports Science Department, Gazi University, Teknikokullar, Ankara 06500, Turkey;
| | - José Pino-Ortega
- Faculty of Sports Sciences, University of Murcia, San Javier, 30100 Murcia, Spain;
- BIOVETMED & SPORTSCI Research Group, Department of Physical Activity and Sport, Faculty of Sport Sciences, University of Murcia, San Javier, 30100 Murcia, Spain;
| | - Markel Rico-González
- BIOVETMED & SPORTSCI Research Group, Department of Physical Activity and Sport, Faculty of Sport Sciences, University of Murcia, San Javier, 30100 Murcia, Spain;
- Department of Physical Education and Sport, University of the Basque Country, UPV-EHU, Lasarte 71, 01007 Vitoria-Gasteiz, Spain
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Abstract
Neuromuscular fatigue (NMF) is usually assessed non-invasively in healthy, athletic or clinical populations with the combination of voluntary and evoked contractions. Although it might appear relatively straightforward to magnetically or electrically stimulate at different levels (cortical/spinal/muscle) and to measure mechanical and electromyographic responses to quantify neuromuscular adjustments due to sustained/repeated muscle contractions, there are drawbacks that researchers and clinicians need to bear in mind. The aim of this opinion paper is to highlight the pitfalls inevitably faced when NMF is quantified. The first problem might arise from the definition of fatigue itself and the parameter(s) used to measure it; for instance, measuring power vs. isometric torque may lead to different conclusions. Another potential limitation is the delay between exercise termination and the evaluation of neuromuscular function; the possible underestimation of exercise-induced neural and contractile impairment and misinterpretation of fatigue etiology will be discussed, as well as solutions recently proposed to overcome this problem. Quantification of NMF can also be biased (or not feasible) because of the techniques themselves (e.g. results may depend on stimulation intensity for transcranial magnetic stimulation) or the way data are analyzed (e.g. M wave peak-to-peak vs first phase amplitude). When available, alternatives recently suggested in the literature to overcome these pitfalls are considered and recommendations about the best practices to assess NMF (e.g. paying attention to the delay between exercise and testing, adapting the method to the characteristics of the population to be tested and considering the limitations associated with the techniques) are proposed.
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Affiliation(s)
- Nicolas Place
- Institute of Sport Sciences, University of Lausanne, Lausanne, Switzerland
| | - Guillaume Y Millet
- Univ Lyon, UJM-Saint-Etienne, Inter-University Laboratory of Human Movement Biology, EA 7424, 42023, Saint-Étienne, France. .,Faculty of Kinesiology, University of Calgary, Calgary, Canada.
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Chartogne M, Rahmani A, Landry S, Bourgeois H, Peyrot N, Morel B. Neuromuscular, Psychological, and Sleep Predictors of Cancer-Related Fatigue in Cancer Patients. Clin Breast Cancer 2021; 21:425-432. [PMID: 33422432 DOI: 10.1016/j.clbc.2020.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 11/03/2020] [Accepted: 12/03/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND Cancer-related fatigue (CRF) is the most reported side effect of cancer and its treatments. This distressing sense of exhaustion critically impairs quality of life and can persist for years after treatment completion. Mechanisms of CRF are multidimensional (eg, physical, psychological, or behavioral), suggesting the need for a complex assessment. Nevertheless, CRF remains assessed mainly with 1-dimensional questionnaires. The purpose of this study was to test whether neuromuscular parameters enhance a model including well-known predictors of CRF. PATIENTS AND METHODS Forty-five participants with cancer history completed self-assessment questionnaires about quality of life, CRF, sleep disturbances, and emotional symptoms. They also completed a 5-minute handgrip fatiguing test composed of 60 maximal voluntary contractions to assess neuromuscular fatigability. Hierarchical linear regression analyses were performed to determine whether the neuromuscular fatigability threshold improved the FA12 score prediction beyond that provided by anxiety/depression and sleep disturbances. RESULTS The hierarchical linear regression analysis evidenced that a model including anxiety/depression, sleep disturbances, and neuromuscular fatigability explained 56% of CRF variance. In addition, the results suggest that the mechanisms leading to CRF may be different from one person to another. CONCLUSION Results revealed that sleep disturbances, emotional symptoms, and neuromuscular fatigability were the most important CRF predictors in cancer patients. This information could be useful for healthcare professionals offering tailored, individual support to patients with CRF.
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Affiliation(s)
- Martin Chartogne
- Le Mans Université, Nantes Université, Movement-Interactions-Performance, MIP, EA 4334, Le Mans, France.
| | - Abderrahmane Rahmani
- Le Mans Université, Nantes Université, Movement-Interactions-Performance, MIP, EA 4334, Le Mans, France
| | - Sébastien Landry
- Elsan, Clinique Victor Hugo, Centre Jean Bernard, Le Mans, France
| | - Hugues Bourgeois
- Elsan, Clinique Victor Hugo, Centre Jean Bernard, Le Mans, France
| | - Nicolas Peyrot
- Le Mans Université, Nantes Université, Movement-Interactions-Performance, MIP, EA 4334, Le Mans, France
| | - Baptiste Morel
- Université Savoie Mont Blanc, Laboratoire Interuniversitaire de Biologie de la Motricité, EA 7424, Chambéry, France
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Souron R, Morel J, Gergelé L, Infantino P, Brownstein CG, Lapole T, Millet GY. Relationship between intensive care unit-acquired weakness, fatigability and fatigue: What role for the central nervous system? J Crit Care 2020; 62:101-110. [PMID: 33316555 DOI: 10.1016/j.jcrc.2020.11.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/24/2020] [Accepted: 11/23/2020] [Indexed: 12/21/2022]
Abstract
PURPOSE To provide a comprehensive review of studies that have investigated fatigue in intensive care unit (ICU) survivors and questions the potential link between intensive care unit-acquired weakness (ICUAW), fatigability and fatigue. We also question whether the central nervous system (CNS) may be the link between these entities. MATERIAL AND METHODS A narrative review of the literature that investigated fatigue in ICU survivors and review of clinical trials enabling understanding of CNS alterations in response to ICU stays. RESULTS Fatigue is a pervasive and debilitating symptom in ICU survivors that can interfere with rehabilitation. Due to the complex pathophysiology of fatigue, more work is required to understand the roles of ICUAW and/or fatigability in fatigue to provide a more holistic understanding of this symptom. While muscle alterations have been well documented in ICU survivors, we believe that CNS alterations developing early during the ICU stay may play a role in fatigue. CONCLUSIONS Fatigue should be considered and treated in ICU survivors. The causes of fatigue are likely to be specific to the individual. Understanding the role that ICUAW and fatigability may have in fatigue would allow to tailor individual treatment to prevent this persistent symptom and improve quality of life.
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Affiliation(s)
- Robin Souron
- Univ Lyon, UJM Saint-Etienne, Inter-university Laboratory of Human Movement Biology, EA 7424, F-42023 Saint-Etienne, France; Laboratory of Impact of Physical Activity on Health (IAPS), UR n°201723207F, University of Toulon, France
| | - Jérôme Morel
- Univ Lyon, UJM Saint-Etienne, Inter-university Laboratory of Human Movement Biology, EA 7424, F-42023 Saint-Etienne, France; Département d'anesthésie et réanimation, Centre Hospitalier Universitaire de Saint-Etienne, Saint-Etienne, France.
| | - Laurent Gergelé
- Ramsay Générale de Santé, Hôpital privé de la Loire, Saint Etienne, France
| | - Pascal Infantino
- Département d'anesthésie et réanimation, Centre Hospitalier Universitaire de Saint-Etienne, Saint-Etienne, France
| | - Callum G Brownstein
- Univ Lyon, UJM Saint-Etienne, Inter-university Laboratory of Human Movement Biology, EA 7424, F-42023 Saint-Etienne, France.
| | - Thomas Lapole
- Univ Lyon, UJM Saint-Etienne, Inter-university Laboratory of Human Movement Biology, EA 7424, F-42023 Saint-Etienne, France
| | - Guillaume Y Millet
- Univ Lyon, UJM Saint-Etienne, Inter-university Laboratory of Human Movement Biology, EA 7424, F-42023 Saint-Etienne, France.
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Neurophysiological relationship of neuromuscular fatigue and stress disorder in PTSD patients. J Bodyw Mov Ther 2020; 24:386-394. [PMID: 33218539 DOI: 10.1016/j.jbmt.2020.06.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 02/25/2020] [Accepted: 06/21/2020] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Apart from mental disorders, other complications that have been reported in some patients with Post-Traumatic Stress Disorder (PTSD), include physical pain and being quick to fatigue, which can severely affect the patients' daily life. Therefore, this study aims to evaluate the relationship between PTSD and physical fatigue in people with PTSD. METHOD 18 military men with (n = 9) and without PTSD (n = 9), with an age range of 45-60 years, volunteered to participate. They were randomly assigned into two groups: PTSD and non-PTSD groups. Recording of the surface electromyography (EMG) in a specific muscle was conducted twice in both groups, once at baseline and then again after a single session of fatiguing exercise. Data were analyzed by ANOVA with repeated measure (2✕2) at the significance level of 0.05. RESULTS Results showed that there was a significant main effect of intervention on electrical activity and neural conduction variables in the PTSD group (p = 0.04, p = 0.02). There was also an effect of time for the both variables (P < 0.001). CONCLUSION Stress disorders may affect the time to fatigue in PTSD patients and subsequently cause some difficulties in their daily life.
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Coates KD, Aboodarda SJ, Krüger RL, Martin T, Metz LM, Jarvis SE, Millet GY. Multiple sclerosis-related fatigue: the role of impaired corticospinal responses and heightened exercise fatigability. J Neurophysiol 2020; 124:1131-1143. [PMID: 32877296 DOI: 10.1152/jn.00165.2020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
It is unclear whether motor fatigability and perceived fatigue share a common pathophysiology in people with multiple sclerosis (PwMS). This cross-sectional investigation explored the relationship between the mechanisms of motor fatigability from cycling and fatigue severity in PwMS. Thirteen highly fatigued (HF) and thirteen nonfatigued (LF) PwMS and thirteen healthy controls (CON) completed a step test until volitional exhaustion on an innovative cycle ergometer. Neuromuscular evaluations involving femoral nerve electrical stimulation and transcranial magnetic stimulation were performed every 3 min throughout cycling. One-way ANOVA at baseline and exhaustion uncovered evidence of consistently smaller motor evoked potential (MEP) amplitudes (P = 0.011) and prolonged MEP latencies (P = 0.041) in HF as well as a greater decline in maximal voluntary contraction force (HF: 63 ± 13%; LF: 75 ± 13%; CON: 73 ± 11% of pre; P = 0.037) and potentiated twitch force (HF: 35 ± 13%; LF: 50 ± 16%; CON: 47 ± 17% of pre; P = 0.049) in HF at volitional exhaustion. Hierarchical regression determined that fatigue severity on the Fatigue Severity Scale was predicted by prolonged MEP latencies (change in r2 = 0.389), elevated peripheral muscle fatigability (change in r2 = 0.183), and depressive symptoms (change in r2 = 0.213). These findings indicate that MS-related fatigue is distinguished by disrupted corticospinal responsiveness, which could suggest progressive pathology, but fatigability from whole body exercise and depressive symptoms also influence perceptions of fatigue in PwMS.NEW & NOTEWORTHY The etiology of fatigability from whole body exercise was examined for the first time to accurately elucidate the relationship between fatigue and fatigability in multiple sclerosis (MS). Compromised corticospinal responsiveness predicted fatigue severity, providing a novel, objective indicator of fatigue in MS. Although the impaired corticomotor transmission did not aggravate muscle activation in this group of people with multiple sclerosis (PwMS) of lower disability, heightened muscle fatigability was seen to contribute to perceptions of fatigue in PwMS.
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Affiliation(s)
- Kyla D Coates
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Saied Jalal Aboodarda
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Renata L Krüger
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada
| | - Tristan Martin
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.,Unité Mixte de Recherche-S 1075 Comete Moblites: Vieillissement Pathologies Santé, Institut National de la Santé et de la Recherche Médicale, Normandy University, Caen, France
| | - Luanne M Metz
- Hotchkiss Brain Institute and the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Scott E Jarvis
- Hotchkiss Brain Institute and the Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Guillaume Y Millet
- Neuromuscular Fatigue Laboratory, Faculty of Kinesiology, University of Calgary, Calgary, Alberta, Canada.,Inter-University Laboratory of Human Movement Biology, Jean Monnet University-Saint-Etienne, University of Lyon, Saint-Etienne, France.,Institut Universitaire de France, Paris, France
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Brownstein CG, Daguenet E, Guyotat D, Millet GY. Chronic fatigue in myelodysplastic syndromes: Looking beyond anemia. Crit Rev Oncol Hematol 2020; 154:103067. [PMID: 32739782 DOI: 10.1016/j.critrevonc.2020.103067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 07/10/2020] [Accepted: 07/23/2020] [Indexed: 12/11/2022] Open
Abstract
Chronic fatigue is the most common and severe symptom in myelodysplastic syndromes (MDS) and has a strong negative association with health-related quality of life (HRQoL). Despite anemia being the most common objective manifestation of MDS, and the associated link between anemia and fatigue, evidence on treatments which temporarily mitigate anemia is equivocal regarding the effects on fatigue. Furthermore, previous work has found weak associations between anemia and chronic fatigue in MDS. As such, given that improving HRQoL is one of the primary treatment aims in MDS, further work is required to identify other potential contributors to chronic fatigue in these patients. In addition to anemia, MDS is associated with numerous other deviations in physiological homeostasis and has negative psychological consequences with links to chronic fatigue. Accordingly, the present review provides several potential aetiologic agents relevant to chronic fatigue in MDS which can be used to guide future research in this field.
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Affiliation(s)
- Callum G Brownstein
- Univ Lyon, UJM-Saint-Etienne, Inter-University Laboratory of Human Movement Biology, EA 7424, F-42023, Saint-Etienne, France.
| | - Elisabeth Daguenet
- Lucien Neuwirth Cancer Institute, Hematology and Cell Therapy, F-42271 Saint-Priest-en-Jarez, France; Lucien Neuwirth Cancer Institute, Research and Teaching Department, F-42271 Saint-Priest-en-Jarez, France
| | - Denis Guyotat
- Lucien Neuwirth Cancer Institute, Hematology and Cell Therapy, F-42271 Saint-Priest-en-Jarez, France; UMR 5239 Laboratoire de Biologie et Modélisation de la Cellule, Ecole Normale Supérieure, Lyon, France
| | - Guillaume Y Millet
- Univ Lyon, UJM-Saint-Etienne, Inter-University Laboratory of Human Movement Biology, EA 7424, F-42023, Saint-Etienne, France; Institut Universitaire de France (IUF), France
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PhysIOpathology of NEuromuscular function rElated to fatigue in chronic Renal disease in the elderly (PIONEER): study protocol. BMC Nephrol 2020; 21:305. [PMID: 32711479 PMCID: PMC7382847 DOI: 10.1186/s12882-020-01976-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 07/22/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chronic Kidney Disease (CKD) is associated with reduced muscular strength resulting in profound fatigue. The physiopathology of these changes, their prevalence and evolution are still debated. Moreover, we have little data on elderly CKD patients. The present study protocol aims to 1) quantify the prevalence of low muscle strength (dynapenia) in a cohort of elderly patients with advanced CKD and to 2) characterize their force production coupled with electromyographic features and the symptoms of fatigue compared to a matched control group. METHODS This is a case-control, prospective, interventional study. INCLUSION CRITERIA age ≥ 60 years; CKD Stage 3b-5; clinical stability (i.e. no hospitalization and ≤ 25% in creatinine increase in the previous 3 months). Controls with normal kidney function will be matched in terms of age, gender and diabetes mellitus (requisite: estimated glomerular filtration rate ≥ 60 ml/min/1.73m2 available in the last 6 months). Exclusion criteria for cases and controls: neuromuscular disease, life expectancy < 3 months. The handgrip strength protocol is an intermittent test consisting in 6 series of 9 repetitions of 3-s sub-maximum contractions at 40% of the maximum voluntary contraction (MVC) and 2 s of resting time between contractions. Each series is separated by one fast sub-maximum contraction and one MVC. Strength is assessed with a high-frequency handgrip dynamometer paired with surface electromyography. Symptoms of fatigue are assessed using MFI-20 and FACIT-F questionnaires. In order to reach a statistical power of 96%, we plan to enroll 110 subjects in each group. DISCUSSION The novelty of this study resides in the application of an already validated set of tests in a population in which this combination (dynamometer, electromyography and questionnaires) has not previously been explored. We expect a high prevalence of dynapenia and a higher fatigability in CKD patients. A positive correlation is expected between reported fatigue and fatigability. Better appreciation of the prevalence and the relationship between fatigability and a sensation of fatigue can help us target interventions in CKD patients to improve quality of life and survival. TRIAL REGISTRATION The study was approved by Ethical Committee EST III n°20.03.01 and was recorded as a Clinical Trial (NCT04330807) on April 2, 2020.
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Lavigne C, Lau H, Francis G, Culos-Reed SN, Millet GY, Twomey R. Neuromuscular function and fatigability in people diagnosed with head and neck cancer before versus after treatment. Eur J Appl Physiol 2020; 120:1289-1304. [PMID: 32253505 DOI: 10.1007/s00421-020-04362-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/29/2020] [Indexed: 12/29/2022]
Abstract
PURPOSE Treatment for head and neck cancer is associated with multiple side effects, including loss of body mass, impaired physical function and reduced health-related quality of life. This study aimed to investigate the impact of treatment (radiation therapy ± concurrent chemotherapy) on (i) muscle strength, muscle cross-sectional area and patient-reported outcomes, and (ii) central and peripheral alterations during a whole-body exercise task. METHODS Ten people with head and neck cancer (4 female; 50 ± 9 years) completed a lab visit before and after (56 ± 30 days) completion of treatment. Participants performed a neuromuscular assessment (involving maximal isometric voluntary contractions in the knee extensors and electrical stimulation of the femoral nerve) before and during intermittent cycling to volitional exhaustion. Anthropometrics and patient-reported outcomes were also assessed. RESULTS From before to after treatment, maximal isometric muscle strength was reduced (P = 0.002, d = 0.73), as was potentiated twitch force (P < 0.001, d = 0.62), and muscle cross-sectional area (e.g., vastus lateralis: P = 0.010, d = 0.64). Exercise time was reduced (P = 0.008, d = 0.62) and peripheral processes contributed to a reduction in maximal force due to cycling. After treatment, the severity of self-reported fatigue increased (P = 0.041, r = - 0.65) and health-related quality of life decreased (P = 0.012, r = - 0.79). CONCLUSION Neuromuscular function was impaired in patients with head and neck cancer after treatment. Whole-body exercise tolerance was reduced and resulted in predominantly peripheral, rather than central, disturbances to the neuromuscular system. Future research should evaluate strength training after treatment for head and neck cancer, with the overall aim of reducing fatigue and improving health-related quality of life.
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Affiliation(s)
- Colin Lavigne
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
| | - Harold Lau
- Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - George Francis
- Division of Physical Medicine and Rehabilitation, Cumming School of Medicine, University of Calgary, Calgary, Canada
| | - S Nicole Culos-Reed
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
- Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, Canada
- Department of Psychosocial Resources, Tom Baker Cancer Centre, Cancer Care, Alberta Health Services, Calgary, Canada
| | - Guillaume Y Millet
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada
- Inter-University Laboratory of Human Movement Biology, EA 7424, University of Lyon, UJM-Saint-Etienne, 42023, Saint-Etienne, France
| | - Rosie Twomey
- Faculty of Kinesiology, University of Calgary, 2500 University Drive NW, Calgary, AB, T2N 1N4, Canada.
- Ohlson Research Initiative, Arnie Charbonneau Research Institute, Cumming School of Medicine, University of Calgary, Calgary, Canada.
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Thamm A, Freitag N, Figueiredo P, Doma K, Rottensteiner C, Bloch W, Schumann M. Can Heart Rate Variability Determine Recovery Following Distinct Strength Loadings? A Randomized Cross-Over Trial. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16224353. [PMID: 31703468 PMCID: PMC6888606 DOI: 10.3390/ijerph16224353] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 11/03/2019] [Accepted: 11/06/2019] [Indexed: 11/16/2022]
Abstract
This study aimed to compare the acute effects of hypertrophic (HYP) and maximum strength (MAX) loadings on heart rate variability (HRV) and to compare possible loading-specific alterations with other markers of recovery. Ten young men with strength training experience performed two leg press loadings (HYP: five times 10 repetitions at 70% of one repetition maximum (1RM) with 2 minutes inter-set rest; MAX: 15 times one repetition at 100% of 1RM with 3 minutes inter-set rest) in a randomized order. The root mean square of successive differences statistically decreased after both protocols (HYP: 65.7 ± 26.6 ms to 23.9 ± 18.7 ms, p = 0.026; MAX: 77.7 ± 37.0 ms to 55.3 ± 22.3 ms, p = 0.049), while the frequency domains of HRV remained statistically unaltered. The low frequency (LF) band statistically increased at 48h post-MAX only (p = 0.033). Maximal isometric voluntary contraction (MVC) statistically decreased after HYP (p = 0.026) and returned to baseline after 24h of recovery. Creatine kinase (CK) statistically increased above baseline at 1h post-loadings (HYP p = 0.028; MAX p = 0.020), returning to baseline at 24h post. Our findings indicate no distinct associations between changes in HRV and MVC or CK.
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Affiliation(s)
- Antonia Thamm
- Department of Molecular and Cellular Sports Medicine, German Sport University, 50933 Cologne, Germany; (A.T.); (N.F.); (W.B.)
| | - Nils Freitag
- Department of Molecular and Cellular Sports Medicine, German Sport University, 50933 Cologne, Germany; (A.T.); (N.F.); (W.B.)
| | - Pedro Figueiredo
- Portugal Football School, Portuguese Football Federation, 1495-433 Oeiras, Portugal;
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, University Institute of Maia, ISMAI, 4475-690 Maia, Portugal
| | - Kenji Doma
- College of Healthcare Sciences, James Cook University, Townsville 4811, Australia;
| | | | - Wilhelm Bloch
- Department of Molecular and Cellular Sports Medicine, German Sport University, 50933 Cologne, Germany; (A.T.); (N.F.); (W.B.)
| | - Moritz Schumann
- Department of Molecular and Cellular Sports Medicine, German Sport University, 50933 Cologne, Germany; (A.T.); (N.F.); (W.B.)
- Correspondence: ; Tel.: +49-221-4982-4821
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Natural medicines for the treatment of fatigue: Bioactive components, pharmacology, and mechanisms. Pharmacol Res 2019; 148:104409. [DOI: 10.1016/j.phrs.2019.104409] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 08/21/2019] [Accepted: 08/21/2019] [Indexed: 02/07/2023]
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