1
|
Dyer OL, Seeley MA, Wheatley BB. Effects of static exercises on hip muscle fatigue and knee wobble assessed by surface electromyography and inertial measurement unit data. Sci Rep 2024; 14:10448. [PMID: 38714802 PMCID: PMC11076610 DOI: 10.1038/s41598-024-61325-7] [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: 10/19/2023] [Accepted: 05/03/2024] [Indexed: 05/10/2024] Open
Abstract
Hip muscle weakness can be a precursor to or a result of lower limb injuries. Assessment of hip muscle strength and muscle motor fatigue in the clinic is important for diagnosing and treating hip-related impairments. Muscle motor fatigue can be assessed with surface electromyography (sEMG), however sEMG requires specialized equipment and training. Inertial measurement units (IMUs) are wearable devices used to measure human motion, yet it remains unclear if they can be used as a low-cost alternative method to measure hip muscle fatigue. The goals of this work were to (1) identify which of five pre-selected exercises most consistently and effectively elicited muscle fatigue in the gluteus maximus, gluteus medius, and rectus femoris muscles and (2) determine the relationship between muscle fatigue using sEMG sensors and knee wobble using an IMU device. This work suggests that a wall sit and single leg knee raise activity fatigue the gluteus medius, gluteus maximus, and rectus femoris muscles most reliably (p < 0.05) and that the gluteus medius and gluteus maximus muscles were fatigued to a greater extent than the rectus femoris (p = 0.031 and p = 0.0023, respectively). Additionally, while acceleration data from a single IMU placed on the knee suggested that more knee wobble may be an indicator of muscle fatigue, this single IMU is not capable of reliably assessing fatigue level. These results suggest the wall sit activity could be used as simple, static exercise to elicit hip muscle fatigue in the clinic, and that assessment of knee wobble in addition to other IMU measures could potentially be used to infer muscle fatigue under controlled conditions. Future work examining the relationship between IMU data, muscle fatigue, and multi-limb dynamics should be explored to develop an accessible, low-cost, fast and standardized method to measure fatiguability of the hip muscles in the clinic.
Collapse
Affiliation(s)
- Olivia L Dyer
- Musculoskeletal Institute, Geisinger, Danville, PA, USA
| | - Mark A Seeley
- Musculoskeletal Institute, Geisinger, Danville, PA, USA
| | - Benjamin B Wheatley
- Musculoskeletal Institute, Geisinger, Danville, PA, USA.
- Department of Mechanical Engineering, Bucknell University, 1 Dent Drive, Lewisburg, PA, 17837, USA.
| |
Collapse
|
2
|
Segura-Jiménez V, Tsiarleston G, Donoso B, Gil-Gutiérrez YM, Delgado-Fernández M. Association of Muscle Strength, Psychological Factors, and Central Sensitization With Movement-Evoked Pain in Patients With Nonspecific Chronic Low Back Pain: The BACKFIT Project. Sports Health 2024:19417381241235152. [PMID: 38566303 DOI: 10.1177/19417381241235152] [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: 04/04/2024] Open
Abstract
BACKGROUND People with chronic pain might evade certain movements to prevent their experience of pain. Movement-evoked pain (MEP) might induce lower functionality during daily activities. HYPOTHESIS (1) MEP after physical fitness tests would vary depending on the main musculature involved in the test; (2) physical and psychological factors would be associated with MEP in patients with NSCLBP. STUDY DESIGN Cross-sectional design. LEVEL OF EVIDENCE Level 3. METHODS A total of 104 (69 women) patients aged 51.0 ± 10.3 years with NSCLBP participated. MEP was measured with a visual analog scale (VAS) at baseline and immediately after performing each physical fitness test, that is, the Biering-Sørensen, prone bridging, handgrip, chair-stand, and 8-foot time-up-and-go tests, measuring back extensor, back flexor, upper- and lower-body muscle strength, and motor agility, respectively. Global muscle strength was calculated with normalized index (z-score) procedure. Depression, anxiety, pain catastrophizing, and central sensitization were assessed with the Beck Depression Inventory II, State Trait Anxiety Inventory I, Pain Catastrophizing Scale, and Central Sensitization Inventory (CSI), respectively. RESULTS Patients showed greater pain after completion of the Biering-Sørensen (mean difference 95% CI, 0.02, 1.11), prone bridging (0.15, 1.21), lower pain after handgrip (-1.46, -0.52), and the 8-foot time-up-and-go (-1.43, 0.46) tests (all P ≤ 0.04). Lower global muscular strength (β between -0.18 and -0.30), and greater pain catastrophizing (β = 0.16), and CSI scoring (β between 0.18 and 0.27) were associated with greater MEP (all P ≤ 0.04). CONCLUSION Greater MEP was observed after tests measuring core musculature strength than after tests measuring distal (limbs) strength and agility. Greater MEP was overall associated with lower muscle strength, greater pain catastrophizing, and central sensitization. CLINICAL RELEVANCE Fitness testing might be implemented as a complementary tool for the monitoring of NSCLBP in clinical settings.
Collapse
Affiliation(s)
- Víctor Segura-Jiménez
- UGC Neurotraumatología y Rehabilitación, Hospital Universitario Virgen de las Nieves, Granada, Spain
- Instituto de Investigación Biosanitaria ibs. Granada, Granada, Spain
- GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Cádiz, Spain
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), Cádiz, Spain
| | - Gavriella Tsiarleston
- Physical Activity for Health Promotion (PA-HELP) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Belén Donoso
- Department of Psychology, Faculty of Education Sciences and Psychology, University of Córdoba, Córdoba, Spain
| | | | - Manuel Delgado-Fernández
- Physical Activity for Health Promotion (PA-HELP) Research Group, Department of Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, Spain
- Sport and Health University Research Institute (iMUDS), Granada, Spain
| |
Collapse
|
3
|
Bornhöft L, Arvidsson D, Bergenheim A, Börjesson M, Fridolfsson J, Hellgren M, Nordeman L, Larsson ME. Development and feasibility of a function-based preventive intervention for lifestyle-related disorders. BMC Public Health 2024; 24:681. [PMID: 38438859 PMCID: PMC10910714 DOI: 10.1186/s12889-024-18017-8] [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: 09/11/2023] [Accepted: 02/06/2024] [Indexed: 03/06/2024] Open
Abstract
BACKGROUND The enormous effect of lifestyle-related disorders on health of the global population warrants the development of preventive interventions. Focusing on musculoskeletal health and physical activity may be a way to encourage necessary lifestyle changes by making them more concrete and understandable. The aims of the current study were to develop a function-based preventive intervention aimed at lifestyle-related disorders in physically inactive 40-year-old people and to investigate the feasibility of the intervention. The feasibility study aimed to solve practical and logistical challenges and to develop the intervention based on the experiences of participants and involved clinical personnel according to defined criteria. METHODS Development of the standardised functional examination was based on literature-validated tests and clinical reasoning. Development of a risk profile was based on the functional examination and similar profiles which have already proved feasible. The feasibility of the functional examination and risk profile, together with function-based lifestyle counselling was tested on 27 participants in a pilot study with two physiotherapist examinations over a four-month period. Practical results and feedback from participants and collaborating personnel were examined. RESULTS The functional examination consists of 20 established tests not requiring specialised equipment or training which were deemed relevant for a middle-aged population and a sub-maximal ergometer test. The risk profile consists of seven functional dimensions: cardiovascular fitness, strength in upper extremity, lower extremity and trunk, mobility, balance and posture, and three non-functional dimensions: weight, self-assessed physical activity and pain. Each dimension contains at least two measures. The participants appreciated the intervention and found it motivating for making lifestyle changes. They found the tests and risk profile understandable and could see them as tools to help achieve concrete goals. The examination required 60-75 min for one physiotherapist. The recruitment rate was low and recruited participants were highly motivated to making lifestyle changes. CONCLUSION This project developed a functional test battery and risk profile aimed at inactive 40-year-olds which fulfilled our feasibility criteria. Functional screening and lifestyle counselling were found to be of value to a sub-group of inactive 40-year-olds who were already motivated to improve their health situations. TRIAL REGISTRATION ClinicalTrials.gov: NCT05535296 first posted on 10/09/2022.
Collapse
Affiliation(s)
- Lena Bornhöft
- Research, Education, Development, Innovation and Implementation, Primary Health Care, .
- Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden.
- Primary Care Rehabilitation, Närhälsan Torslanda Rehabilitation Clinic, Gothenburg, Region Västra Götaland, Sweden.
| | - Daniel Arvidsson
- Center for Health and Performance, Department of Food and Nutrition and Sport Science, Faculty of Education, University of Gothenburg, Gothenburg, Sweden
| | - Anna Bergenheim
- Research, Education, Development, Innovation and Implementation, Primary Health Care
- Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Mats Börjesson
- Department of Molecular and Clinical Medicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Center for Lifestyle Intervention, Department of MGAÖ, Sahlgrenska University Hospital, Gothenburg, Region Västra Götaland, Sweden
| | - Jonatan Fridolfsson
- Center for Health and Performance, Department of Food and Nutrition and Sport Science, Faculty of Education, University of Gothenburg, Gothenburg, Sweden
| | - Margareta Hellgren
- General practice - Family medicine, School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
- The Skaraborg Institute, Skövde, Sweden
| | - Lena Nordeman
- Research, Education, Development, Innovation and Implementation, Primary Health Care
- Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Maria Eh Larsson
- Research, Education, Development, Innovation and Implementation, Primary Health Care
- Unit of Physiotherapy, Department of Health and Rehabilitation, Institute of Neuroscience and Physiology, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| |
Collapse
|
4
|
Devorski L, Skibski A, Mangum LC. Rectus abdominis muscle thickness change and activation increase during planks performed on different surfaces. J Ultrasound 2024; 27:21-29. [PMID: 36454532 PMCID: PMC10908688 DOI: 10.1007/s40477-022-00750-8] [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: 09/23/2022] [Accepted: 10/29/2022] [Indexed: 12/04/2022] Open
Abstract
AIMS The plank is a common exercise used to evaluate core function. Surface electromyography (sEMG) and ultrasound can be used simultaneously to measure muscle activity. We aimed to compare the %-thickness and %-activation during the plank performed on three surfaces and to determine agreement and relationship between rectus abdominis (RA) %-thickness of a rested tabletop position and %-activation normalized to quiet tabletop position during the plank on three surfaces. METHODS In this cross-sectional study, ultrasound and sEMG measured RA muscle function during the first 5-s and last 5-s of a plank performed on a table, yoga mat, and fitness ball. A repeated measures ANOVA compared differences in %-thickness change and Friedman's tests compared differences in %-activation, alpha set a priori p ≤ 0.05. Bland-Altman plots measured agreement between instruments. Spearman's rho determined relationships between instruments. RESULTS There was no difference between %-thickness change across surfaces during the first 5-s or last 5-s, or between %-activation during the last 5-s. The %-activation of the RA during the first 5-s performed on the fitness ball was higher than the table and yoga mat (p < 0.001). Ultrasound and sEMG had weak relationships across all surfaces (ρ = - 0.078 to 0.116). CONCLUSION The first 5-s of the plank performed on the fitness ball requires a greater RA activation. Ultrasound could not detect changes in %-thickness of the RA during the plank which may be influenced by the type of contraction. Comparison between these measurement tools during isometric exercise should be used with caution.
Collapse
Affiliation(s)
- Luk Devorski
- Rehabilitation, Athletic Assessment, and Dynamic Imaging (READY) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, 4364 Scorpius Street, HS 2 Room 235, Orlando, FL, 32816-2205, USA
| | - Andrew Skibski
- Rehabilitation, Athletic Assessment, and Dynamic Imaging (READY) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, 4364 Scorpius Street, HS 2 Room 235, Orlando, FL, 32816-2205, USA
| | - L Colby Mangum
- Rehabilitation, Athletic Assessment, and Dynamic Imaging (READY) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, 4364 Scorpius Street, HS 2 Room 235, Orlando, FL, 32816-2205, USA.
| |
Collapse
|
5
|
Shaw J, Jacobs JV, Van Dillen LR, Beneck GJ, Smith JA. Understanding the Biering-Sørensen test: Contributors to extensor endurance in young adults with and without a history of low back pain. J Electromyogr Kinesiol 2024; 74:102854. [PMID: 38171249 PMCID: PMC10842485 DOI: 10.1016/j.jelekin.2023.102854] [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: 07/31/2023] [Revised: 12/07/2023] [Accepted: 12/26/2023] [Indexed: 01/05/2024] Open
Abstract
The Biering-Sørensen test is commonly used to assess paraspinal muscle endurance. Research using a single repetition of the test has provided conflicting evidence for the contribution of impaired paraspinal muscle endurance to low back pain (LBP). This study investigated how Sørensen test duration, muscle activation, and muscle fatigability are affected by multiple repetitions of the test and determined predictors of Sørensen test duration in young adults with and without a history of LBP. Sixty-four young individuals performed three repetitions of the Sørensen test. Amplitude of activation and median frequency slope (fatigability) were calculated for the lumbar and thoracic paraspinals and hamstrings. Duration of the test was significantly less for the 3rd repetition in individuals with LBP. In individuals without LBP, test duration was predicted by fatigability of the lumbar paraspinals. In individuals with LBP, Sørensen test duration was predicted by fatigability of the hamstrings and amplitude of activation of the thoracic and lumbar paraspinals. Our findings demonstrate that it is necessary to amplify the difficulty of the Sørensen test to reveal impairments in young, active adults with LBP. Training programs aiming to improve lumbar paraspinal performance should monitor performance of other synergist muscles during endurance exercise.
Collapse
Affiliation(s)
- Jonathan Shaw
- Crean College of Health and Behavioral Sciences, Chapman University, CA, USA
| | - Jesse V Jacobs
- Rehabilitation and Movement Science, University of Vermont, VT, USA
| | - Linda R Van Dillen
- Program in Physical Therapy, Orthopaedic Surgery, Washington University School of Medicine in St. Louis, St. Louis, WA, USA
| | - George J Beneck
- Department of Physical Therapy, California State University, Long Beach, CA, USA
| | - Jo Armour Smith
- Crean College of Health and Behavioral Sciences, Chapman University, CA, USA.
| |
Collapse
|
6
|
Xiao W, Yang H, Hao Z, Li M, Zhao M, Zhang S, Zhang G, Mao H, Wang C. Relationship between Fear-Avoidance Beliefs and Reaction Time Changes Prior to and following Exercise-Induced Muscle Fatigue in Chronic Low Back Pain. Pain Res Manag 2024; 2024:9982411. [PMID: 38312327 PMCID: PMC10838204 DOI: 10.1155/2024/9982411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/19/2023] [Accepted: 01/17/2024] [Indexed: 02/06/2024]
Abstract
Background Reaction time is a reliable indicator of the velocity and efficiency of neuromuscular control and may be associated with fear-avoidance beliefs. However, the effect of exercise-induced muscle fatigue on reaction time in chronic low back pain (cLBP) and its relationship with fear-avoidance beliefs remains poorly understood. Objectives This study aimed to reveal the relationship between fear-avoidance beliefs and reaction time changes before and after exercise-induced muscle fatigue in cLBP. Methods Twenty-five patients with cLBP were tested by the Biering-Sorensen test (BST) to induce exhaustive muscle fatigue. Total reaction time (TRT), premotor time (PMT), and electromechanical delay (EMD) of dominated deltoid muscle were recorded by surface electromyography during the arm-raising task with visual cues before and after muscle fatigue. The mean difference (MD) of TRT (MDTRT), PMT (MDPMT), and EMD (MDEMD) was calculated from the changes before and after muscle fatigue. Fear-avoidance beliefs questionnaire (FABQ) was applied to evaluate fear-avoidance beliefs before muscle fatigue. In addition, the duration time of BST was recorded for each subject. Results TRT and PMT of dominated deltoid muscle were prolonged after exercise-induced muscle fatigue (Z = 3.511, p < 0.001; t = 3.431, p = 0.001), while there was no statistical difference in EMD (Z = 1.029, p = 0.304). Correlation analysis showed that both the MDTRT and MDPMT were positively correlated with FABQ (r = 0.418, p = 0.042; r = 0.422, p = 0.040). Conclusions These findings suggested that we should pay attention to both muscle fatigue-induced reaction time delay in cLBP management and the possible psychological mechanism involved in it. Furthermore, this study implied that FABQ-based psychotherapy might serve as a potential approach for cLBP treatment by improving reaction time delay. This trial is registered with ChiCTR2300074348.
Collapse
Affiliation(s)
- Wenwu Xiao
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Huaichun Yang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Zengming Hao
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Menglin Li
- Department of Rehabilitation, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong 510180, China
| | - Mengchu Zhao
- Department of Rehabilitation Sciences, The Hong Kong Polytechnic University, Hong Kong, SAR 999077, China
| | - Siyun Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Guifang Zhang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Haian Mao
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Chuhuai Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| |
Collapse
|
7
|
Brouwer NP, Kingma I, van Dijk W, van Dieën JH. Can intermittent changes in trunk extensor muscle length delay muscle fatigue development? J Biomech 2024; 162:111881. [PMID: 38049364 DOI: 10.1016/j.jbiomech.2023.111881] [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: 08/23/2023] [Revised: 11/01/2023] [Accepted: 11/19/2023] [Indexed: 12/06/2023]
Abstract
Muscle length changes may evoke alternating activity and consequently reduce local fatigue and pain during prolonged static bending. The aim of this study was to assess whether a postural intervention involving intermittent trunk extensor muscle length changes (INTERMITTENT) can delay muscle fatigue during prolonged static bending when compared to a near-isometric condition (ISOMETRIC) or when participants were allowed to voluntarily vary muscle length (VOLUNTARY). These three conditions were completed by 11 healthy fit male participants, in three separate sessions of standing with 30 ± 3 degrees trunk inclination until exhaustion. Conventional and high-density electromyography (convEMG and HDsEMG, respectively) were measured on the left and right side of the spine, respectively. The endurance time for INTERMITTENT was 33.6% greater than ISOMETRIC (95% CI: [3.8, 63.5]; p = 0.027) and 29.4% greater than VOLUNTARY (95% CI: [7.0, 51.7]; p = 0.010), but not different between ISOMETRIC and VOLUNTARY. The convEMG and HDsEMG amplitude coefficient of variation was significantly greater for INTERMITTENT versus ISOMETRIC. The rate of change in convEMG and HDsEMG spectral content did not reveal significant differences between conditions as found in endurance time. Additional regression analyses between endurance time and rate of change in convEMG (p > 0.05) and HDsEMG (R2 = 0.39-0.65, p = 0.005-0.039) spectral content indicated that HDsEMG better reflects fatigue development in low-level contractions. In conclusion, imposed intermittent trunk extensor muscle length changes delayed muscle fatigue development when compared to a near-isometric condition or when participants were allowed to voluntarily vary muscle length, possibly due to evoking alternating activity between/within trunk extensor muscles.
Collapse
Affiliation(s)
- Niels P Brouwer
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | - Idsart Kingma
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands
| | | | - Jaap H van Dieën
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, the Netherlands.
| |
Collapse
|
8
|
Brouwer NP, Tabasi A, Kingma I, Stegeman DF, van Dijk W, Moya-Esteban A, Sartori M, van Dieën JH. Trunk extensor muscle endurance and its relationship to action potential conduction velocity and spectral parameters estimated using high-density electromyography. J Electromyogr Kinesiol 2023; 73:102830. [PMID: 37862925 DOI: 10.1016/j.jelekin.2023.102830] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Revised: 08/23/2023] [Accepted: 10/10/2023] [Indexed: 10/22/2023] Open
Abstract
Trunk extensor muscle fatigue typically manifests as a decline in spectral content of surface electromyography. However, previous research on the relationship of this decline with trunk extensor muscle endurance have shown inconsistent results. The decline of spectral content mainly reflects the decrease in average motor unit action potential conduction velocity (CV). We evaluated whether the rate of change in CV, as well as two approaches employing the change in spectral content, are related to trunk extensor muscle endurance. Fourteen healthy male participants without a low-back pain history performed a non-strictly controlled static forward trunk bending trial until exhaustion while standing. For 13 participants, physiologically plausible CV estimates were obtained from high-density surface electromyography bilaterally from T6 to L5. Laterally between L1 and L2, the linear rate of CV change was strongly correlated to endurance time (R2 = 0.79), whereas analyses involving the linear rate of change in spectral measures showed a lower (R2 = 0.38) or no correlation. For medial electrode locations, estimating CV and its relationship with endurance time was less successful, while the linear rate of change in spectral measures correlated moderately to endurance time (R2 = 0.44; R2 = 0.56). This study provides guidance on monitoring trunk extensor muscle fatigue development using electromyography.
Collapse
Affiliation(s)
- Niels P Brouwer
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Ali Tabasi
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Idsart Kingma
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | - Dick F Stegeman
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands
| | | | - Alejandro Moya-Esteban
- Department of Biomechanical Engineering, University of Twente, Enschede, The Netherlands
| | - Massimo Sartori
- Department of Biomechanical Engineering, University of Twente, Enschede, The Netherlands
| | - Jaap H van Dieën
- Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam Movement Sciences, Amsterdam, The Netherlands.
| |
Collapse
|
9
|
Koch D, Nüesch C, Ignasiak D, Aghlmandi S, Caimi A, Perrot G, Prüfer F, Harder D, Santini F, Schären S, Ferguson S, Mündermann A, Netzer C. The role of muscle degeneration and spinal balance in the pathophysiology of lumbar spinal stenosis: Study protocol of a translational approach combining in vivo biomechanical experiments with clinical and radiological parameters. PLoS One 2023; 18:e0293435. [PMID: 37889898 PMCID: PMC10610482 DOI: 10.1371/journal.pone.0293435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 09/25/2023] [Indexed: 10/29/2023] Open
Abstract
OBJECTIVE To describe a study protocol for investigating the functional association between posture, spinal balance, ambulatory biomechanics, paraspinal muscle fatigue, paraspinal muscle quality and symptoms in patients with symptomatic lumbar spinal stenosis (sLSS) before and 1-year after elective surgical intervention. DESIGN Single-centre prospective, experimental, multimodal (clinical, biomechanical, radiological) study with three instances of data collection: baseline (study visit 1), 6-month follow-up (remote) and 1-year follow-up (study visit 2). Both study visits include an in vivo experiment aiming to elicit paraspinal muscle fatigue for postural assessment in a non-fatigued and fatigued state. EXPERIMENTAL PROTOCOL At baseline and 1-year follow-up, 122 patients with sLSS will be assessed clinically, perform the back-performance scale assessment and complete several patient-reported outcome measure (PROMs) questionnaires regarding overall health, disease-related symptoms and kinesiophobia. Posture and biomechanical parameters (joint kinematics, kinetics, surface electromyography, back curvature) will be recorded using an optoelectronic system and retroreflective markers during different tasks including overground walking and movement assessments before and after a modified Biering-Sørensen test, used to elicit paraspinal muscle fatigue. Measurements of muscle size and quality and the severity of spinal stenosis will be obtained using magnetic resonance imaging (MRI) and sagittal postural alignment data from EOS radiographies. After each study visit, physical activity level will be assessed during 9 days using a wrist-worn activity monitor. In addition, physical activity level and PROMs will be assessed remotely at 6-month follow-up. CONCLUSION The multimodal set of data obtained using the study protocol described in this paper will help to expand our current knowledge on the pathophysiology, biomechanics, and treatment outcome of degenerative sLSS. The results of this study may contribute to defining and/or altering patient treatment norms, surgery indication criteria and post-surgery rehabilitation schedules. TRIAL REGISTRATION The protocol was approved by the regional ethics committee and has been registered at clinicaltrials.gov (NCT05523388).
Collapse
Affiliation(s)
- David Koch
- Department of Spine Surgery, University Hospital Basel, Basel, Switzerland
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland
| | - Corina Nüesch
- Department of Spine Surgery, University Hospital Basel, Basel, Switzerland
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland
| | | | - Soheila Aghlmandi
- Division of Clinical Epidemiology, University of Basel and University Hospital Basel, Basel, Switzerland
| | - Alice Caimi
- Institute for Biomechanics, ETH Zurich, Zurich, Switzerland
| | - Guido Perrot
- Department of Physiotherapy, University Hospital Basel, Basel, Switzerland
| | - Friederike Prüfer
- Department of Pediatric Radiology, University Children’s Hospital Basel, Basel, Switzerland
| | - Dorothee Harder
- Department of Radiology, University Hospital Basel, Basel, Switzerland
| | - Francesco Santini
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
- Department of Radiology, University Hospital Basel, Basel, Switzerland
| | - Stefan Schären
- Department of Spine Surgery, University Hospital Basel, Basel, Switzerland
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| | | | - Annegret Mündermann
- Department of Spine Surgery, University Hospital Basel, Basel, Switzerland
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland
| | - Cordula Netzer
- Department of Spine Surgery, University Hospital Basel, Basel, Switzerland
- Department of Biomedical Engineering, University of Basel, Basel, Switzerland
| |
Collapse
|
10
|
Yang S, Cheng J, Shang J, Hang C, Qi J, Zhong L, Rao Q, He L, Liu C, Ding L, Zhang M, Chakrabarty S, Jiang X. Stretchable surface electromyography electrode array patch for tendon location and muscle injury prevention. Nat Commun 2023; 14:6494. [PMID: 37838683 PMCID: PMC10576757 DOI: 10.1038/s41467-023-42149-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 09/29/2023] [Indexed: 10/16/2023] Open
Abstract
Surface electromyography (sEMG) can provide multiplexed information about muscle performance. If current sEMG electrodes are stretchable, arrayed, and able to be used multiple times, they would offer adequate high-quality data for continuous monitoring. The lack of these properties delays the widespread use of sEMG in clinics and in everyday life. Here, we address these constraints by design of an adhesive dry electrode using tannic acid, polyvinyl alcohol, and PEDOT:PSS (TPP). The TPP electrode offers superior stretchability (~200%) and adhesiveness (0.58 N/cm) compared to current electrodes, ensuring stable and long-term contact with the skin for recording (>20 dB; >5 days). In addition, we developed a metal-polymer electrode array patch (MEAP) comprising liquid metal (LM) circuits and TPP electrodes. The MEAP demonstrated better conformability than commercial arrays, resulting in higher signal-to-noise ratio and more stable recordings during muscle movements. Manufactured using scalable screen-printing, these MEAPs feature a completely stretchable material and array architecture, enabling real-time monitoring of muscle stress, fatigue, and tendon displacement. Their potential to reduce muscle and tendon injuries and enhance performance in daily exercise and professional sports holds great promise.
Collapse
Grants
- We thank the National Key R&D Program of China (2021YFF1200800, 2021YFF1200100, 2022YFB3804700, and 2018YFA0902600), the National Natural Science Foundation of China (22234004), Shenzhen Science and Technology Program (JCYJ20200109141231365 and KQTD 20190929172743294), Shenzhen Key Laboratory of Smart Healthcare Engineering (ZDSYS20200811144003009), Guangdong Innovative and Entrepreneurial Research Team Program (2019ZT08Y191), Guangdong Provincial Key Laboratory of Advanced Biomaterials (2022B1212010003), Tencent Foundation through the XPLORER PRIZE, Guangdong Major Talent Introduction Project (2019CX01Y196). We also acknowledge the assistance of SUSTech Core Research Facilities.
Collapse
Affiliation(s)
- Shuaijian Yang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | - Jinhao Cheng
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Jin Shang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Chen Hang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Jie Qi
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Leni Zhong
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Qingyan Rao
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Lei He
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Chenqi Liu
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Li Ding
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Mingming Zhang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China
| | - Samit Chakrabarty
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, Leeds, LS2 9JT, UK.
| | - Xingyu Jiang
- Guangdong Provincial Key Laboratory of Advanced Biomaterials, Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, P. R. China.
| |
Collapse
|
11
|
Konieczny M, Skorupska E, Domaszewski P, Pakosz P, Skulska M, Herrero P. Relationship between latent trigger points, lower limb asymmetry and muscle fatigue in elite short-track athletes. BMC Sports Sci Med Rehabil 2023; 15:109. [PMID: 37700332 PMCID: PMC10496335 DOI: 10.1186/s13102-023-00719-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: 04/17/2023] [Accepted: 08/29/2023] [Indexed: 09/14/2023]
Abstract
BACKGROUND Short-track speed skating movement involves asymmetric overloading of the lower left side of the body. The gluteus maximus fatigue limits the physical and mental athletic capacity to perform set tasks. A possible link between the presence of latent trigger points (LTrPs) and muscle fatigue development/persistence has been posited. The aim of the study was to determine whether elite short-track speed skating can result in the impairment of the musculoskeletal system of the lower limbs. METHODS Elite short-track athletes as the experimental group (EXP) = 9, 19.5 ± 1.8 years, and healthy subjects as the control group (CON) = 18, 20.8 ± 1.2 years, were tested for: (i) lower limb loading asymmetry using ground reaction force (GRF) measurements during quiet standing, (ii) gluteus maximus fatigue measured with surface electromyography (sEMG) during the Biering-Sorensen test, and (iii) LTrPs presence in the 14 examined muscles of the pelvic girdle and lower limbs. RESULTS There were between-group differences in the number of LTrPs, with the EXP group (left lower limb (LLL) n = 18, right lower limb (RLL) n = 9) showing more LTrPs compared to the CON group (LLL n = 2, RLL n = 1), (p < 0.001), and within-group differences in the EXP group only (p < 0.001). There were also significant differences in muscle fatigue for the left side (p < 0.001) both between the groups and within the EXP group (p ≤ 0.001). The vertical ground reaction force (GRF) measurement showed a loading rate of 2% (p = 0.013) in the athletes' LLL exclusively. CONCLUSIONS The study confirmed an increased prevalence of LTrPs, increased muscle fatigue and left-sided limb load asymmetry in elite short-track athletes. TRIAL REGISTRATION The study was conducted in accordance with the Declaration of Helsinki and approved by the Ethics Committee of the Poznan University of Medical Sciences (Resolution No 110/22 of 10 March 2022). TRIAL REGISTRATION 20/07/2022, Trial Id: ACTRN12622001016729.
Collapse
Affiliation(s)
- Mariusz Konieczny
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, Opole, 45-068, Poland
| | - Elżbieta Skorupska
- Department of Physiotherapy, Poznan University of Medical Sciences, Poznan, 61-701, Poland.
| | - Przemysław Domaszewski
- Department of Health Sciences, Institute of Health Sciences, University of Opole, Katowicka 68, Opole, 45-060, Poland
| | - Paweł Pakosz
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, Opole, 45-068, Poland
| | - Marta Skulska
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, Opole, 45-068, Poland
| | - Pablo Herrero
- Faculty of Health Sciences, IIS Aragon, University of Zaragoza, Domingo Miral, s/n, Zaragoza, 50009, Spain
| |
Collapse
|
12
|
Shaw J, Jacobs JV, Van Dillen LR, Beneck GJ, Smith JA. Understanding the Biering-Sørensen test: contributors to extensor endurance in young adults with and without low back pain. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.01.11.23284452. [PMID: 36712062 PMCID: PMC9882630 DOI: 10.1101/2023.01.11.23284452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Impaired paraspinal muscle endurance may contribute to persistent low back pain (LBP) and is frequently assessed using a single repetition of the Biering-Sørensen test. This study investigated how Sørensen test duration, muscle activation, and muscle fatigability are affected by multiple repetitions of the test, and determined predictors of Sørensen test duration in young, active adults with and without a history of LBP. Sixty-four individuals with and without persistent LBP performed 3 repetitions of the Sørensen test. Amplitude of activation and median frequency slope (fatigability) were calculated for the lumbar and thoracic paraspinals and the hamstrings. Duration of the test was significantly less for the 2nd and 3rd repetitions in individuals with LBP. In individuals without LBP, fatigability of the lumbar paraspinals was the best predictor of test duration. In individuals with LBP, Sørensen test duration was predicted by fatigability of the hamstrings and amplitude of activation of the thoracic and lumbar paraspinals. Our findings demonstrate that it is necessary to amplify the difficulty of the Sørensen test to elucidate impairments in young, active adults with LBP. Training programs aiming to improve lumbar paraspinal performance in individuals with LBP should monitor performance of other synergist muscles during endurance exercise.
Collapse
|
13
|
Ballenberger N, Avermann F, Zalpour C. Musculoskeletal Health Complaints and Associated Risk Factors in Freshmen Music Students. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:3169. [PMID: 36833864 PMCID: PMC9964731 DOI: 10.3390/ijerph20043169] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 01/31/2023] [Accepted: 02/05/2023] [Indexed: 06/18/2023]
Abstract
BACKGROUND Evidence concerning the development of musculoskeletal health complaints (MHCs) among music students is limited due to inappropriate study designs. We aimed to assess the occurrences of MHCs and associated risk factors in freshmen music students compared to students from other disciplines. METHODS A prospective cohort study was conducted. Risk factors such as pain-related, physical, and psychosocial variables were measured at baseline. Episodes of MHCs were recorded monthly. RESULTS A total of 146 music students and 191 students from other disciplines were analyzed. In the cross-sectional comparison, pain-related, physical, and psychosocial variables were significantly altered in music students compared to students from other disciplines. Furthermore, music students with current MHCs differed significantly from music students without current MHCs with respect to physical health, pain, and history of MHCs. Our longitudinal analysis showed that monthly MHCs were higher in music students compared to students from other disciplines. Independent predictors for monthly MHCs in music students were current MHCs and reduced physical function. Predictors for MHCs in students from other disciplines were a history of MHCs and stress. CONCLUSIONS We provided insight into the development of MHCs and risk factors in music students. This may help in the creation of targeted, evidence-based prevention and rehabilitation.
Collapse
Affiliation(s)
- Nikolaus Ballenberger
- Faculty of Business Management and Social Sciences, Osnabrück University of Applied Sciences, 49090 Osnabrück, Germany
| | | | | |
Collapse
|
14
|
The Effect of Spinal Muscle Fatigue and Psychosocial Factors on Pressure-Pain Threshold in Healthy Adults. Pain Res Manag 2023; 2023:7336477. [PMID: 36741677 PMCID: PMC9891829 DOI: 10.1155/2023/7336477] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/01/2022] [Accepted: 11/24/2022] [Indexed: 01/26/2023]
Abstract
Objective Pain sensitivity decreases following isometric exercise. It is not clear whether this exercise-induced hypoalgesia (EIH) occurs to the same extent in men and women. It is also unclear if the effect is systemic or local to the exercised musculature. The aim of our study was to investigate whether fatiguing isometric exercise of the spinal and hip extensors would result in increased pressure pain threshold (PPT) at sites local to and remote from the exercised muscles in healthy men and women and whether there is a relationship between central sensitization, psychosocial factors, and PPT. Subjects 35 healthy adults (age 27.1 ± 4.5 years, 22 women). Methods This was a within-subjects cohort study. Participants completed questionnaires quantifying central sensitization, pain catastrophizing, sleepiness/insomnia, anxiety, and depression. PPT was assessed at the lumbar and thoracic paraspinals, hamstrings, gastrocnemius, wrist, and third digit before and immediately after participants performed the Biering-Sorensen test to failure. Results PPT increased postexercise in the thoracic paraspinals, hamstrings, and gastrocnemius in men and women and in the lumbar paraspinals in men only but did not change at the wrist and digit sites. A lower average PPT at baseline was associated with a higher central sensitization scores. A greater increase in average PPT postfatigue was significantly associated with higher average PPT at baseline. Conclusions Exercise-induced hypoalgesia occurs at sites overlying the muscles involved in fatiguing exercise, but not at remote sites, and is more evident in males than females. The magnitude of EIH depends upon baseline PPT. Even in healthy individuals, greater central sensitization is associated with lower baseline PPT.
Collapse
|
15
|
van Sluijs RM, Rodriguez-Cianca D, Sanz-Morère CB, Massardi S, Bartenbach V, Torricelli D. A method to quantify the reduction of back and hip muscle fatigue of lift-support exoskeletons. WEARABLE TECHNOLOGIES 2023; 4:e2. [PMID: 38487768 PMCID: PMC10936298 DOI: 10.1017/wtc.2022.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 11/01/2022] [Accepted: 11/30/2022] [Indexed: 03/17/2024]
Abstract
Cumulative back muscle fatigue plays a role in the occurrence of low-back injuries in occupations that require repetitive lifting of heavy loads and working in forward leaning postures. Lift-support exoskeletons have the potential to reduce back and hip muscle activity, thereby delaying the onset of fatigue in these muscles. Therefore, exoskeletons are being considered a potentially important tool to further reduce workload-related injuries. However, today no standards have been established on how to benchmark the support level of lift-support exoskeletons. This work proposes an experimental protocol to quantify the support level of a lift-support exoskeletons on instant changes in muscle activity and fatigue development while maintaining a static forward leaning posture. It then applies the protocol to experimentally assess the effect of the support provided by a commercially available lift-support exoskeleton, the LiftSuit 2.0 (Auxivo AG, Schwerzenbach, Switzerland), on the user. In a sample of 14 participants, the amplitude of the muscle activity of the back muscles and hip muscles () was significantly reduced. Wearing the exoskeleton significantly reduced the amount of fatigue developed during the task (). Changes in muscle fatigue can be objectively recorded and correlated with relevant changes for exoskeleton users: the time a task can be performed and perceived low-back fatigue. Thus, including such measures of fatigue in standardized benchmarking procedures will help quantify the benefits of exoskeletons for occupational use.
Collapse
Affiliation(s)
| | | | | | - Stefano Massardi
- Cajal Institute, Spanish National Research Council, Madrid, Spain
| | | | - Diego Torricelli
- Cajal Institute, Spanish National Research Council, Madrid, Spain
| |
Collapse
|
16
|
Reliability of high-density surface electromyography for assessing characteristics of the thoracic erector spinae during static and dynamic tasks. J Electromyogr Kinesiol 2022; 67:102703. [PMID: 36096034 DOI: 10.1016/j.jelekin.2022.102703] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Revised: 08/03/2022] [Accepted: 08/31/2022] [Indexed: 12/14/2022] Open
Abstract
PURPOSE To establish intra- and inter-session reliability of high-density surface electromyography (HDEMG)-derived parameters from the thoracic erector spinae (ES) during static and dynamic goal-directed voluntary movements of the trunk, and during functional reaching tasks. METHODS Twenty participants performed: 1) static trunk extension, 2) dynamic trunk forward and lateral flexion, and 3) multidirectional functional reaching tasks on two occasions separated by 7.5 ± 1.2 days. Muscle activity was recorded bilaterally from the thoracic ES. Root mean square (RMS), coordinates of the barycentre, mean frequency (MNF), and entropy were derived from the HDEMG signals. Reliability was determined with intraclass correlation coefficient (ICC), coefficient of variation, and standard error of measurement. RESULTS Good-to-excellent intra-session reliability was found for all parameters and tasks (ICC: 0.79-0.99), whereas inter-session reliability varied across tasks. Static tasks demonstrated higher reliability in most parameters compared to functional and dynamic tasks. Absolute RMS and MNF showed the highest overall reliability across tasks (ICC: 0.66-0.98), while reliability of the barycentre was influenced by the direction of the movements. CONCLUSION RMS and MNF derived from HDEMG show consistent inter-session reliability in goal-directed voluntary movements of the trunk and reaching tasks, whereas the measures of the barycentre and entropy demonstrate task-dependent reliability.
Collapse
|
17
|
Boutellier A, Nüesch C, Suter P, Perrot G, Mündermann A. Trunk muscle function and its association with functional limitations in sedentary occupation workers with and without chronic nonspecific low back pain. J Back Musculoskelet Rehabil 2022; 35:783-791. [PMID: 34744065 DOI: 10.3233/bmr-200269] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND The function of trunk muscles in chronic nonspecific low back pain (CNLBP) is controversially discussed, and trunk muscle function in sedentary occupation workers is poorly understood. OBJECTIVE To investigate whether muscle function differs between sedentary occupation workers with and without CNLBP and to determine the association between functional limitations and muscle function. METHODS This study included 32 sedentary occupation workers (16 workers with CNLBP and 16 age- and sex-matched workers without CNLBP). Group differences in isokinetic trunk flexion-extension strength, muscle cocontraction, endurance time (Biering-Sorensen test) and electromyographic muscle fatigue were assessed. The association of these parameters and Oswestry Disability Index (ODI) score were examined in the CNLBP group. RESULTS Participants with CNLBP had lower trunk extensor (-20%) and flexor (-18%) strength and less cocontraction (-22%) than participants without CNLBP, but due to large variability in both groups these differences were not statistically significant. Trunk muscle endurance and fatigue were comparable between groups. Variance in endurance time explained 28% of variance in the ODI-score in the CNLBP group (R2= 0.277). CONCLUSIONS In patients with CNLBP, greater functional disability was associated with lower endurance. Further evidence is necessary to elucidate whether specifically training endurance performance may be beneficial for sedentary occupation workers.
Collapse
Affiliation(s)
- Angela Boutellier
- School of Health Professions, Zurich University of Applied Sciences Winterthur, Winterthur, Switzerland.,Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland
| | - Corina Nüesch
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland.,Department of Spine Surgery, University Hospital Basel, Basel, Switzerland.,Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Clinical Research, University of Basel, Basel, Switzerland
| | - Peter Suter
- Institute for Physiotherapy, University Hospital Basel, Basel, Switzerland
| | - Guido Perrot
- Institute for Physiotherapy, University Hospital Basel, Basel, Switzerland
| | - Annegret Mündermann
- Department of Orthopaedics and Traumatology, University Hospital Basel, Basel, Switzerland.,Department of Spine Surgery, University Hospital Basel, Basel, Switzerland.,Department of Biomedical Engineering, University of Basel, Basel, Switzerland.,Department of Clinical Research, University of Basel, Basel, Switzerland
| |
Collapse
|
18
|
Is the Side Bridge Test Valid and Reliable for Assessing Trunk Lateral Flexor Endurance in Recreational Female Athletes? BIOLOGY 2022; 11:biology11071043. [PMID: 36101422 PMCID: PMC9312545 DOI: 10.3390/biology11071043] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/05/2022] [Accepted: 07/08/2022] [Indexed: 11/16/2022]
Abstract
Simple Summary Although the side bridge test has been widely used for assessing trunk lateral flexor endurance in sport, clinical, and scientific settings, to the best of the authors’ knowledge, no study has analyzed its validity and reliability in an only female population. The surface electromyography of eight abdominal, back, shoulder and hip muscles was measured during the test to analyze its validity. A one-week test-retest design was performed to evaluate its reliability. No significant differences were found between the trunk lateral flexors and the deltoids. The study data showed that the test performance could be significantly predicted by external oblique and deltoid normalized median frequency slopes and by body mass and trunk height. Based on the results of this study, the shoulder muscle activation and fatigue and the individuals’ anthropometric characteristics, especially the mass, played an important role in the side bridge test performance, which questions the validity of this multi-joint test to specifically assess trunk lateral flexor endurance. In addition, although the side bridge test showed a good data consistency, its intra-subject variability was high, which reduces its utility when small intra-subject changes in muscle endurance are important (e.g., elite sport). Abstract The side bridge test (SBT) is one of the most popular tests to assess isometric trunk lateral flexor endurance. The aim of this study was to assess the validity and reliability of the SBT in healthy females. Twenty-four (24.58 ± 3.92 years) physically active (1–2 h of moderate physical activity, 2–3 times a week) females voluntarily participated in this study. The surface electromyography (EMG) of eight abdominal, back, shoulder and hip muscles was measured during the SBT. Normalized median frequency slopes (NMFslope) were calculated to analyze the muscle fatigue. The EMG amplitudes were normalized to maximum EMG values to assess muscle activity intensity. A one-week test-retest design was performed to evaluate the SBT reliability through the ICC3,1 and typical error. Higher NMFslopes and normalized EMG amplitudes were found in deltoids, abdominal obliques, rectus abdominis, and erector spinae in comparison to latissimus dorsi, gluteus medius, and rectus femoris. However, no significant differences were found between the trunk lateral flexors and the deltoids. Linear regression analysis showed that SBT performance could be significantly predicted by external oblique and deltoid NMFslope (adjusted R2 = 0.673) and by body mass and trunk height (adjusted R2 = 0.223). Consistency analysis showed a high intraclass correlation coefficient (0.81) and a relatively high typical error (10.95 s). Despite the good relative reliability of the SBT, its absolute reliability was low and its validity questionable, as the shoulder muscle activation and fatigue and the individuals’ anthropometric characteristics played an important role in SBT performance.
Collapse
|
19
|
Costa-García Á, Iáñez E, Yokoyama M, Ueda S, Okajima S, Shimoda S. Quantification of high and low sEMG spectral components during sustained isometric contraction. Physiol Rep 2022; 10:e15296. [PMID: 35614546 PMCID: PMC9133435 DOI: 10.14814/phy2.15296] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Accepted: 04/19/2022] [Indexed: 11/24/2022] Open
Abstract
Superficial Electromyography (sEMG) spectrum contains aggregated information from several underlying physiological processes. Due to technological limitations, the isolation of these processes is challenging, and therefore, the interpretation of changes in muscle activity frequency is still controversial. Recent studies showed that the spectrum of sEMG signals recorded from isotonic and short-term isometric contractions can be decomposed into independent components whose spectral features recall those of motor unit action potentials. In this paper sEMG spectral decomposition is tested during muscle fatigue induced by long-term isometric contraction where sEMG spectral changes have been widely studied. The main goals of this work are to validate spectral component extraction during long-term isometric muscle activation and the quantification of energy exchange between the low- and high-frequency bands of sEMG signals during muscle fatigue.
Collapse
Affiliation(s)
- Álvaro Costa-García
- CBS-TOYOTA Collaboration Center in the Nagoya Science Park Research and Development Center, Intelligent Behaviour Control Unit (RIKEN), Nagoya, Aichi, Japan
| | - Eduardo Iáñez
- Brain Machine Interface Systems Lab from Miguel Hernández University (UMH), Parque Cientifico UMH, Edificio Innova, Elche, Alicante, Spain
| | - Moeka Yokoyama
- CBS-TOYOTA Collaboration Center in the Nagoya Science Park Research and Development Center, Intelligent Behaviour Control Unit (RIKEN), Nagoya, Aichi, Japan
| | - Sayako Ueda
- CBS-TOYOTA Collaboration Center in the Nagoya Science Park Research and Development Center, Intelligent Behaviour Control Unit (RIKEN), Nagoya, Aichi, Japan
| | - Shotaro Okajima
- CBS-TOYOTA Collaboration Center in the Nagoya Science Park Research and Development Center, Intelligent Behaviour Control Unit (RIKEN), Nagoya, Aichi, Japan
| | - Shingo Shimoda
- CBS-TOYOTA Collaboration Center in the Nagoya Science Park Research and Development Center, Intelligent Behaviour Control Unit (RIKEN), Nagoya, Aichi, Japan
| |
Collapse
|
20
|
Marineau Belanger E, Boon DM, Descarreaux M, Abboud J. The effect of low back pain on neuromuscular control in cyclists. J Sports Sci 2022; 40:1255-1264. [PMID: 35389326 DOI: 10.1080/02640414.2022.2061819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
This study was designed to identify neuromuscular adaptations of low back pain (LBP) cyclists , and the impact of a cycling effort on spinal shrinkage. Forty-eight trained cyclists rode their road bike on a smart trainer for 1-hour. Surface electromyography (EMG) recorded muscle activity of the lumbar erector spinae (LES), 3D motion analysis system recorded kinematic of the trunk, and stadiometry measured spinal height. Statistical comparisons were made using repeated measure ANOVAs. The LBP group presented increase in pain levels throughout the effort (p < 0.001). A significant group difference was only observed for the thoracic angle (p = 0.03), which was less flexed for LBP. The one-hour cycling effort (time effect) significantly increased the trunk flexion (p < 0.001) and thoracic flexion (p < 0.001) for both groups. Significant lower LES activation (35% less) was observed at the end of the effort as well as a decrease in spinal height (p = 0.01) for both groups. Neuromuscular adaptations to cycling effort is identified by a decrease in LES EMG amplitude and an increase flexion of the trunk. Adaptation to pain is seen by an increase in thoracic flexion. Despite these adaptations, LBP cyclists could not ride their bike pain-free.
Collapse
Affiliation(s)
- Emile Marineau Belanger
- Department of Human Kinetics, Université du Québec à Trois-Rivières, Trois-Rivières, Quebec, Canada.,Université du Québec à Trois-Rivières, Trois-Rivières, Canada
| | - Dan-Mihai Boon
- parcours neuroscience du mouvement, Université de Paris-Est CréteilFaculté de biologie-santé.,Institut Franco-Européen de Chiropraxie, Campus Paris, France
| | - Martin Descarreaux
- Department of Human Kinetics, Université du Québec à Trois-Rivières, Trois-Rivières, Quebec, Canada.,Université du Québec à Trois-Rivières, Trois-Rivières, Canada
| | - Jacques Abboud
- Department of Human Kinetics, Université du Québec à Trois-Rivières, Trois-Rivières, Quebec, Canada.,Université du Québec à Trois-Rivières, Trois-Rivières, Canada
| |
Collapse
|
21
|
Castro-Piñero J, Marin-Jimenez N, Fernandez-Santos JR, Martin-Acosta F, Segura-Jimenez V, Izquierdo-Gomez R, Ruiz JR, Cuenca-Garcia M. Criterion-Related Validity of Field-Based Fitness Tests in Adults: A Systematic Review. J Clin Med 2021; 10:jcm10163743. [PMID: 34442050 PMCID: PMC8397016 DOI: 10.3390/jcm10163743] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/23/2021] [Accepted: 08/15/2021] [Indexed: 11/16/2022] Open
Abstract
We comprehensively assessed the criterion-related validity of existing field-based fitness tests used to indicate adult health (19–64 years, with no known pathologies). The medical electronic databases MEDLINE (via PubMed) and Web of Science (all databases) were screened for studies published up to July 2020. Each original study’s methodological quality was classified as high, low and very low, according to the number of participants, the description of the study population, statistical analysis and systematic reviews which were appraised via the AMSTAR rating scale. Three evidence levels were constructed (strong, moderate and limited evidence) according to the number of studies and the consistency of the findings. We identified 101 original studies (50 of high quality) and five systematic reviews examining the criterion-related validity of field-based fitness tests in adults. Strong evidence indicated that the 20 m shuttle run, 1.5-mile, 12 min run/walk, YMCA step, 2 km walk and 6 min walk test are valid for estimating cardiorespiratory fitness; the handgrip strength test is valid for assessing hand maximal isometric strength; and the Biering–Sørensen test to evaluate the endurance strength of hip and back muscles; however, the sit-and reach test, and its different versions, and the toe-to-touch test are not valid for assessing hamstring and lower back flexibility. We found moderate evidence supporting that the 20 m square shuttle run test is a valid test for estimating cardiorespiratory fitness. Other field-based fitness tests presented limited evidence, mainly due to few studies. We developed an evidence-based proposal of the most valid field-based fitness tests in healthy adults aged 19–64 years old.
Collapse
Affiliation(s)
- Jose Castro-Piñero
- GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Avenida República Saharaui s/n, Puerto Real, 11519 Cádiz, Spain; (J.C.-P.); (J.R.F.-S.); (F.M.-A.); (V.S.-J.); (R.I.-G.); (M.C.-G.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), 11009 Cádiz, Spain
| | - Nuria Marin-Jimenez
- GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Avenida República Saharaui s/n, Puerto Real, 11519 Cádiz, Spain; (J.C.-P.); (J.R.F.-S.); (F.M.-A.); (V.S.-J.); (R.I.-G.); (M.C.-G.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), 11009 Cádiz, Spain
- Correspondence: ; Tel.: +34-956-016-253
| | - Jorge R. Fernandez-Santos
- GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Avenida República Saharaui s/n, Puerto Real, 11519 Cádiz, Spain; (J.C.-P.); (J.R.F.-S.); (F.M.-A.); (V.S.-J.); (R.I.-G.); (M.C.-G.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), 11009 Cádiz, Spain
| | - Fatima Martin-Acosta
- GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Avenida República Saharaui s/n, Puerto Real, 11519 Cádiz, Spain; (J.C.-P.); (J.R.F.-S.); (F.M.-A.); (V.S.-J.); (R.I.-G.); (M.C.-G.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), 11009 Cádiz, Spain
| | - Victor Segura-Jimenez
- GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Avenida República Saharaui s/n, Puerto Real, 11519 Cádiz, Spain; (J.C.-P.); (J.R.F.-S.); (F.M.-A.); (V.S.-J.); (R.I.-G.); (M.C.-G.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), 11009 Cádiz, Spain
| | - Rocio Izquierdo-Gomez
- GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Avenida República Saharaui s/n, Puerto Real, 11519 Cádiz, Spain; (J.C.-P.); (J.R.F.-S.); (F.M.-A.); (V.S.-J.); (R.I.-G.); (M.C.-G.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), 11009 Cádiz, Spain
| | - Jonatan R. Ruiz
- PROmoting FITness and Health through Physical Activity Research Group (PROFITH), Sport and Health University Research Institute (iMUDS), Department of Physical and Sports Education, School of Sports Science, University of Granada, 18007 Granada, Spain;
| | - Magdalena Cuenca-Garcia
- GALENO Research Group, Department of Physical Education, Faculty of Education Sciences, University of Cádiz, Avenida República Saharaui s/n, Puerto Real, 11519 Cádiz, Spain; (J.C.-P.); (J.R.F.-S.); (F.M.-A.); (V.S.-J.); (R.I.-G.); (M.C.-G.)
- Instituto de Investigación e Innovación Biomédica de Cádiz (INiBICA), 11009 Cádiz, Spain
| |
Collapse
|
22
|
Macedo LB, Richards J, Borges DT, Melo SA, Reis DD, Brasileiro JS. The influence of Kinesio Taping on muscle fatigue in individuals with low back pain: A randomised controlled trial. J Back Musculoskelet Rehabil 2021; 34:613-621. [PMID: 33682693 DOI: 10.3233/bmr-200207] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
OBJECTIVE To evaluate the effect of different taping techniques on back muscle fatigue in people with low back pain. METHODS Sixty women with chronic non-specific low back pain were randomly assigned to four groups of 15 participants each: control (CG), Kinesio Taping (KT) with tension (KTT), KT no tension (KTNT) and Micropore® (MP), which were applied over the erector spinae muscles. The median frequency (MF) fatigue slopes of the longissimus muscle and sustained contraction time during a trunk fatigue test (Ito test), and pain using the numerical pain rating scale (NPRS) were collected at three time points: pre-treatment, three and ten days after intervention at a university laboratory. RESULTS Significant differences were seen in the MF slopes between groups (p= 0.01, η2= 0.20), with the KTT showing a mean difference (MD = 0.31, p= 0.04) and KTNT (MD = 0.28, p= 0.04) compared with CG. Significant reductions in NPRS were seen between time points (p< 0.001, η2= 0.28), with a reduction between pre and 3 days (MD = 1.87, p< 0.001), and pre and 10 days (MD = 1.38, p< 0.001), with KTT and KTNT both showing clinically important changes. CONCLUSION KT, with or without tension, has a tendency to reduce back muscle fatigue and reduce pain in individuals with chronic non-specific low back pain.
Collapse
Affiliation(s)
- Liane Brito Macedo
- Faculty of Health Sciences of Trairí, Federal University of Rio Grande do Norte, Santa Cruz, Brazil.,Physiotherapy Department, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Jim Richards
- Allied Health Research unit, University of Central Lancashire, Preston, UK
| | - Daniel Tezoni Borges
- Physiotherapy Department, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Samara Alencar Melo
- Physiotherapy Department, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | | |
Collapse
|
23
|
Guo LX, Dong RC, Yuan S, Feng QZ, Fan W. Influence of seat lumbar support adjustment on muscle fatigue under whole body vibration: An in vivo experimental study. Technol Health Care 2021; 30:455-467. [PMID: 34275916 DOI: 10.3233/thc-212840] [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: 11/15/2022]
Abstract
BACKGROUND In order to alleviate muscle fatigue and improve ride comfort, many published studies aimed to improve the seat environment or optimize seating posture. However, the effect of lumbar support on the lumbar muscle of seated subjects under whole body vibration is still unclear. OBJECTIVE This study aimed to investigate the effect of lumbar support magnitude of the seat on lumbar muscle fatigue relief under whole body vibration. METHODS Twenty healthy volunteers without low back pain participated in the experiment. By measuring surface electromyographic signals of erector spinae muscles under vibration or non-vibration for 30 minutes, the effect of different lumbar support conditions on muscle fatigue was analyzed. The magnitude of lumbar support d is assigned as d1= 0 mm, d2= 20 mm and d3= 40 mm for no support, small support and large support, respectively. RESULTS The results showed that lumbar muscle activation levels vary under different support conditions. For the small support case (d2= 20 mm), the muscle activation level under vibration and no-vibration was the minimum, 42.3% and 77.7% of that under no support (d1= 0 mm). For all support conditions, the muscle activation level under vibration is higher than that under no-vibration. CONCLUSIONS The results indicate that the small support yields the minimum muscle contraction (low muscle contraction intensity) under vibration, which is more helpful for relieving lumbar muscle fatigue than no support or large support cases. Therefore, an appropriate lumbar support of seats is necessary for alleviating lumbar muscle fatigue.
Collapse
Affiliation(s)
- Li-Xin Guo
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, Liaoning, China
| | - Rui-Chun Dong
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, Liaoning, China
| | | | - Qing-Zhi Feng
- Department of Audio and Video Material Examination Technology, Criminal Investigation Police University of China, Shenyang, Liaoning, China
| | - Wei Fan
- School of Mechanical Engineering and Automation, Northeastern University, Shenyang, Liaoning, China
| |
Collapse
|
24
|
Kumamoto T, Seko T, Matsuda R, Miura S. Repeated standing back extension exercise: Influence on muscle shear modulus change after lumbodorsal muscle fatigue. Work 2021; 68:1229-1237. [PMID: 33867382 PMCID: PMC8293651 DOI: 10.3233/wor-213452] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND In low back pain, multifidus muscle fibers reportedly exhibit increased stiffness. Low back pain was associated with lumbodorsal muscle fatigue. There is no report of using shear modulus to verify the mechanism of an immediate effect of exercise on low back pain. Here, temporary lumbodorsal muscle fatigue was created, simulating fatigue-related nonspecific low back pain. OBJECTIVE To assess the effect of standing back extension exercise on fatigued lumbodorsal muscle based on the results of multifidus muscle elasticity measured using shear wave elastography. METHODS Thirty-three healthy subjects were randomly divided into three groups. The subjects performed the Biering-Sorensen test as the fatigue-task of the lumbodorsal muscle before the standing back extension exercise. The fatigue-exercise group exercised five sets after completing the fatigue-task. The fatigue-non-exercise group remained standing for the same duration as the fatigue-exercise group without doing the exercise after the fatigue-task. The non-fatigue-exercise group exercised five sets of without performing the fatigue-task. As intra-group and inter-group factors, the shear modulus of the multifidus muscle was compared before and after the exercise. RESULTS The shear modulus of the multifidus muscle after the standing back extension exercise was significantly lower in the fatigue-exercise group, and no significant decrease was observed in the fatigue-non-exercise and non-fatigue-exercise group. CONCLUSIONS The standing back extension exercise improved the shear modulus of the fatigued multifidus muscle. Therefore, it was suggested that the change in the elasticity of fatigued muscle might lead to the prevention of low back pain caused by muscle fatigue.
Collapse
Affiliation(s)
- Tsuneo Kumamoto
- Department of Rehabilitation, Faculty of Health Science, Hokkaido Chitose College of Rehabilitation, Chitose, Hokkaido, Japan
| | - Toshiaki Seko
- Department of Rehabilitation, Faculty of Health Science, Hokkaido Chitose College of Rehabilitation, Chitose, Hokkaido, Japan
| | - Ryo Matsuda
- Department of Rehabilitation, Sinsapporo Neurosurgical Hospital, Sapporo, Hokkaido, Japan
| | - Sayo Miura
- Department of Rehabilitation, Hokusei Hospital, Chitose, Hokkaido, Japan
| |
Collapse
|
25
|
Martínez-Romero MT, Ayala F, Aparicio-Sarmiento A, De Ste Croix M, Sainz De Baranda P. Reliability of five trunk flexion and extension endurance field-based tests in high school-aged adolescents: ISQUIOS programme. J Sports Sci 2021; 39:1860-1872. [PMID: 33775212 DOI: 10.1080/02640414.2021.1903706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
This study aimed to explore the inter-session reliability of the measures obtained from 2 trunk extension (Biering-Sorensen and Dynamic Extensor Endurance (DEE) tests) and 3 trunk flexion (Ito, Side Bridge and Bench Trunk Curl-Up (BTC) tests) endurance field-based tests in adolescents. A total of 208 (males, n = 100; females, n = 108) adolescents performed all the field-based tests on 2 separate testing sessions, 7-days apart. The inter-session reliability scores were explored through relative reliability, inter-session differences and precision of measurements. Most of the trunk endurance measures demonstrated acceptable relative reliability (the intraclass correlation coefficients (ICC) ranged from 0.75 to 0.94). However, significant inter-session differences were identified for measures from the DEE and BTC tests. Likewise, the precision of the measurement of each field-based test was poor (the the standard error of measurement expressed as a percentage of the mean score (CVTE) ranged from 11.3 to 24.4%) with the minimal detectable change (MDC95) revealing that changes higher than 42% for trunk extension endurance tests and 31.4% for trunk flexion endurance tests after an intervention are required to indicate a significant change above measurement error. Therefore, the findings from this study indicate that only the BTC test demonstrates acceptable inter-session reliability (ICC > 0.9, CVTE ~ 10%, MDC95 ~ 30%) to monitor the changes in trunk endurance scores that may be expected in adolescents after performing an intervention programme.
Collapse
Affiliation(s)
- María Teresa Martínez-Romero
- Department of Physical Activity and Sport, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, San Javier, Spain.,Sports and Musculoskeletal System Research Group (RAQUIS), University of Murcia, Murcia, Spain
| | - Francisco Ayala
- Department of Physical Activity and Sport, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, San Javier, Spain.,Sports and Musculoskeletal System Research Group (RAQUIS), University of Murcia, Murcia, Spain.,Ramon y Cajal post doctoral fellow (RYC2019-028383-I/AEI/10.13039/501100011033)
| | - Alba Aparicio-Sarmiento
- Department of Physical Activity and Sport, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, San Javier, Spain.,Sports and Musculoskeletal System Research Group (RAQUIS), University of Murcia, Murcia, Spain
| | - Mark De Ste Croix
- Sports and Musculoskeletal System Research Group (RAQUIS), University of Murcia, Murcia, Spain.,School of Sport and Exercise, Exercise and Sport Research Centre, University of Gloucestershire, Gloucester, UK
| | - Pilar Sainz De Baranda
- Department of Physical Activity and Sport, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, San Javier, Spain.,Sports and Musculoskeletal System Research Group (RAQUIS), University of Murcia, Murcia, Spain
| |
Collapse
|
26
|
Smith JA, Eiteman-Pang WK, Soangra R, König Ignasiak N. Adaptations in trunk-pelvis coordination variability in response to fatiguing exercise. Gait Posture 2021; 84:1-7. [PMID: 33260075 PMCID: PMC7902355 DOI: 10.1016/j.gaitpost.2020.11.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 10/29/2020] [Accepted: 11/16/2020] [Indexed: 02/02/2023]
Abstract
BACKGROUND During walking, variability in how movement is coordinated between body segments from stride to stride facilitates adaptation to changing environmental or task constraints. Magnitude of this inter-segmental coordination variability is reduced in patient populations and may also decrease in response to muscle fatigue. Previously, stride-to-stride variability has been quantified with the Vector Coding (VC) method, however recent research introduced a new Ellipse Area Method (EAM) to avoid statistical artifacts associated with VC. RESEARCH QUESTION Determine changes in trunk-pelvis coordination variability during walking turns in response to fatiguing exercise and to compare coordination variability quantified with VC to the EAM method. METHODS 15 young adults (mean age: 23.7 (±3.2) years) performed 15 trials of a 90-degree walking turn before and after fatiguing paraspinal muscle exercise. Angular kinematics of the trunk and pelvis segments in the axial plane were quantified using three-dimensional motion capture. Stride to stride variability of axial coordination between the trunk and pelvis pre- and post-fatigue was calculated using both VC and EAM methods. Magnitudes of pre- and post-fatigue variability for VC and EAM were compared with paired t-tests and relationship between the magnitude of variability for the two methods was calculated using Pearson correlation coefficients. RESULTS Using both analytical approaches, trunk-pelvis coordination variability decreased significantly post-fatiguing exercise across the stride cycle and within the stance phase of the turn (p < 0.034 for all comparisons). Average magnitudes of variability calculated with VC and EAM were highly correlated. Time series cross correlations pre-post fatigue ranged from 0.81 to 0.98. SIGNIFICANCE In healthy individuals, magnitude of trunk-pelvis stride-to-stride coordination variability is reduced following fatiguing exercise but the temporal distribution of variability across the stride cycle is maintained. This finding is robust to the method used to quantify coordination variability.
Collapse
Affiliation(s)
- Jo Armour Smith
- Department of Physical Therapy, Chapman University, 9401 Jeronimo Road, Irvine, CA, 92618, United States.
| | - Wilford K Eiteman-Pang
- Department of Physical Therapy, Chapman University, 9401 Jeronimo Road, Irvine, CA, 92618, United States
| | - Rahul Soangra
- Department of Physical Therapy, Chapman University, 9401 Jeronimo Road, Irvine, CA, 92618, United States
| | - Niklas König Ignasiak
- Department of Physical Therapy, Chapman University, 9401 Jeronimo Road, Irvine, CA, 92618, United States
| |
Collapse
|
27
|
Werner DM, Barrios JA. Trunk Muscle Endurance in Individuals With and Without a History of Anterior Cruciate Ligament Reconstruction. J Strength Cond Res 2021; 35:118-123. [PMID: 29630588 DOI: 10.1519/jsc.0000000000002395] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
ABSTRACT Werner, DM and Barrios, JA. Trunk muscle endurance in individuals with and without a history of anterior cruciate ligament reconstruction. J Strength Cond Res 35(1): 118-123, 2021-Anterior cruciate ligament (ACL) rupture is one of the most common knee injuries and often leads to surgery. Second injury after an ACL reconstruction (ACLR) is a major risk after rehabilitation, and may be linked to persistent postoperative deficits in muscular strength and endurance. Trunk muscle endurance has not been well studied after ACLR. Therefore, the purpose of this study was to compare trunk endurance using the established McGill testing battery in 20 individuals who had previously undergone ACLR at least 1 year before with 20 controls matched for sex frequency, limb dominance, age, body mass index, and activity level. Four static positional holds to failure were performed in random order, with time in seconds recorded as the primary dependent variable. Mann-Whitney U tests using an alpha level of 0.05 were conducted comparing hold times for all positions between groups. Effect sizes were also calculated between groups. Deficits in trunk extension endurance were observed in the surgical group. The results of this study suggest that contemporary rehabilitation schemes after ACLR do not fully address trunk endurance deficits. Health care professionals delivering postoperative rehabilitation after ACLR may consider direct assessment of trunk endurance and targeted exercise training to address potential deficits.
Collapse
Affiliation(s)
- David M Werner
- Department of Physical Therapy, University of Dayton, Dayton, Ohio
| | | |
Collapse
|
28
|
Effects of Prolonged Sitting with Slumped Posture on Trunk Muscular Fatigue in Adolescents with and without Chronic Lower Back Pain. ACTA ACUST UNITED AC 2020; 57:medicina57010003. [PMID: 33374520 PMCID: PMC7822118 DOI: 10.3390/medicina57010003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 12/15/2020] [Accepted: 12/21/2020] [Indexed: 11/16/2022]
Abstract
Background and Objectives: This study investigated the effects of prolonged sitting on trunk muscular fatigue and discomfort in participants with and without chronic lower back pain (LBP). Material and Methods: This study included 15 patients with LBP and 15 healthy controls. All participants were instructed to sit on a height-adjustable chair with their knee and hip joints bent at 90° for 30 min, in slumped sitting postures. Surface electromyography was used to assess the median frequency of the internal obliques (IO)/transversus abdominis (TrA) and multifidus (MF) muscles. Perceived discomfort was measured using a Borg category ratio-scale. Median frequency of the trunk muscles and perceived discomfort after 30 min of sitting were compared with baseline. Result: There were no significant differences within the group and between both groups in the median frequency of bilateral IO and MF muscles. The LBP group showed significantly greater perceived discomfort after prolonged sitting, as compared to the control group. Conclusions: Prolonged sitting with slumped posture could increase the risk of experiencing lower back discomfort.
Collapse
|
29
|
De Blaiser C, Roosen P, Willems T, De Bleecker C, Vermeulen S, Danneels L, De Ridder R. The role of core stability in the development of non-contact acute lower extremity injuries in an athletic population: A prospective study. Phys Ther Sport 2020; 47:165-172. [PMID: 33302113 DOI: 10.1016/j.ptsp.2020.11.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 11/21/2020] [Accepted: 11/24/2020] [Indexed: 01/28/2023]
Abstract
OBJECTIVES Stability of the core is associated with lower extremity functioning. Consequently, impaired core stability might play a role in developing non-contact acute lower extremity sports injuries. The objective was to investigate components of core stability as potential risk factors for acute lower extremity injuries. DESIGN A cohort study was set up with a follow-up and injury registration period of 1.5 years. PARTICIPANTS 142 male and female physical education students were included. MAIN OUTCOME MEASURES Measures of isometric hip and core muscular strength, endurance, proprioception and neuromuscular control of the core, and postural control were taken at the start of the study. Sports-related injury occurrence was registered during follow-up. RESULTS 27 (19%) injuries of interest occurred during follow-up. After multivariate model building, a significant predictive effect was found for side-to-side hip abduction strength asymmetry (p = .007). The hazard of developing an acute lower extremity injury increased with 6.2% with a 1 unit increase in side-to-side strength imbalance, regardless of gender. CONCLUSION Hip abduction strength imbalance was determined as a risk factor for the development of non-contact, acute lower extremity injuries. Normalizing hip strength imbalances might be beneficial for injury prevention. However, further research is needed to support this claim.
Collapse
Affiliation(s)
- Cedric De Blaiser
- Department of Rehabilitation Sciences, Ghent University, 9000, Ghent, Belgium.
| | - Philip Roosen
- Department of Rehabilitation Sciences, Ghent University, 9000, Ghent, Belgium
| | - Tine Willems
- Department of Rehabilitation Sciences, Ghent University, 9000, Ghent, Belgium
| | - Camilla De Bleecker
- Department of Rehabilitation Sciences, Ghent University, 9000, Ghent, Belgium
| | - Stefan Vermeulen
- Department of Rehabilitation Sciences, Ghent University, 9000, Ghent, Belgium
| | - Lieven Danneels
- Department of Rehabilitation Sciences, Ghent University, 9000, Ghent, Belgium
| | - Roel De Ridder
- Department of Rehabilitation Sciences, Ghent University, 9000, Ghent, Belgium
| |
Collapse
|
30
|
Lee HS, Akimoto T, Kim AR. Effects of trunk extensor eccentric exercise on lipid profile and glycaemic response. BMJ Open Sport Exerc Med 2020; 6:e000861. [PMID: 33178444 PMCID: PMC7642235 DOI: 10.1136/bmjsem-2020-000861] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/18/2020] [Indexed: 01/27/2023] Open
Abstract
Objectives A number of previous studies reported physiological responses and adaptations after eccentric muscle contraction of limb muscles. In contrast, no study has determined physiological response after eccentric contraction of trunk muscles. The purpose of the present study was to compare the functional and metabolic changes after eccentric or concentric exercises of trunk extensor muscles. Methods In this randomised, crossover study, 10 men performed a single bout of 50 maximal voluntary concentric and eccentric contractions of the trunk extensor with an interval of 2 weeks between bouts. The activities of the paraspinal muscles were recorded during concentric and eccentric contractions. Muscle soreness, muscle function, blood lipid profiles and glycaemic responses were measured before, immediately after and at 24, 48, 72 and 96 hours after each bout. Results The lumbar multifidus and iliocostalis lumborum activities during eccentric contractions were significantly higher than those during concentric contractions (p<0.05). The maximal strength and muscle endurance of the trunk extensor were not decreased even after the eccentric contractions. Compared with concentric contractions, muscle soreness was significantly increased at 24, 48, 72 and 96 hours after eccentric contractions (p<0.05). The TG, TC and LDL-C were significantly lower at 48, 72 and 96 hours after eccentric contractions (p<0.05), while blood glucose levels and HOMA-IR were significantly greater at 48 and 72 hours after eccentric contractions (p<0.05). Conclusion This study indicated that eccentric contractions of the trunk extensor had positive effects on the lipid profile and the glycaemic response.
Collapse
Affiliation(s)
- Ho-Seong Lee
- Department of Kinesiologic Medical Science, Dankook University - Cheonan Campus, Cheonan, Korea (the Republic of).,Institute of MEDI-Sports,Dankook University - Cheonan Campus, Cheonan, Korea (the Republic of)
| | - Takayuki Akimoto
- Laboratory of Muscle Biology, Waseda University, Shinjuku-ku,Japan
| | - Ah-Ram Kim
- Institute of MEDI-Sports,Dankook University - Cheonan Campus, Cheonan, Korea (the Republic of).,Physical Therapy, Namseoul University, Cheonan, Korea (the Republic of)
| |
Collapse
|
31
|
Physical or Cognitive Exertion Does Not Influence Cortical Movement Preparation for Rapid Arm Movements. Motor Control 2020; 24:473-498. [DOI: 10.1123/mc.2019-0115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 05/04/2020] [Accepted: 05/14/2020] [Indexed: 11/18/2022]
Abstract
The contribution of central factors to movement preparation (e.g., the contingent negative variation [CNV]) and the influence of fatigue on such factors are still unclear, even though executive cognitive functions are regarded as key elements in motor control. Therefore, this study examined CNV amplitude with electroencephalography in 22 healthy humans during a rapid arm movement task prior to and following three experimental conditions: (a) a no exertion/control condition, (b) a physical exertion, and (c) a cognitive exertion. CNV amplitude was affected neither by a single bout of physical/cognitive exertion nor by the control condition. Furthermore, no time-on-task effects of the rapid arm movement task on the CNV were found. Exertion did not affect cortical movement preparation, which is in contrast to previous findings regarding time-on-task effects of exertion on CNV. Based on the current findings, the rapid arm movement task is deemed suitable to measure cortical movement preparation, without being affected by learning effects and physical/cognitive exertion.
Collapse
|
32
|
Impact of retrowalking on pain, range of motion, muscle fatigability, and balance in collegiate athletes with chronic mechanical low back pain. SPORT SCIENCES FOR HEALTH 2020. [DOI: 10.1007/s11332-020-00682-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
33
|
Konieczny M, Pakosz P, Witkowski M. Asymmetrical fatiguing of the gluteus maximus muscles in the elite short-track female skaters. BMC Sports Sci Med Rehabil 2020; 12:48. [PMID: 32818057 PMCID: PMC7427950 DOI: 10.1186/s13102-020-00193-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Accepted: 07/21/2020] [Indexed: 11/15/2022]
Abstract
Background According to research, fast skating on short distances increases functional asymmetry of leg muscles. As has been proven in many sporting disciplines, this asymmetry can increase the risk of injury. The aim of the study was to analyze the level of right and left myolectrical manifestations of fatigue asymmetry of gluteus maximus muscle in elite skaters on a short track and to compare this phenomenon to a control group. The muscles were chosen deliberately, due to their influence in maintaining the right position during training on ice. Methods The experiment compared a group of eight members of the Polish Women’s National Team in short track with a group of eight non-training people. The subjects did the Biering-Sorensen test, in which sEMG (surface electromyography) signal frequency was measured in the gluteus maximus muscles during an isometric contraction. Myolectrical manifestations of fatigue slopes were analyzed with a ANOVA with repeated measures. In the skaters, the myolectrical manifestations of fatigue differed between the right and the left gluteus maximus muscles. All the skaters had higher myolectrical manifestations of fatigue in the right leg. This phenomenon was not observed in the non-training subjects, who on average had similar myolectrical manifestations of fatigue in both legs. Results Results showed that the right and the left muscles of the skaters in the experimental group differed in myolectrical manifestations of fatigue, but this difference was non-significant in the control group. The subjects from the two groups did not differ in the myolectrical manifestations of fatigue of the left muscle, they did in the myolectrical manifestations of fatigue of the right muscle. The elite speed-track skaters had higher myolectrical manifestations of fatigue in the right muscle than the non-training subjects. Conclusions Training should thus be planned in a way that minimizes the risk of causing muscle myolectrical manifestations of fatigue asymmetry in skaters despite the typically asymmetrical muscle work during training on ice and competition, thus new training protocols should be developed or considered to decrease that asymmetry. Trial registration The tests were previously approved by the Bioethical Commission of the Chamber of Physicians in Opole. (Resolution No. 235 of 13 December 2016).
Collapse
Affiliation(s)
- Mariusz Konieczny
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, 45-758 Opole, Poland
| | - Paweł Pakosz
- Faculty of Physical Education and Physiotherapy, Opole University of Technology, Prószkowska 76, 45-758 Opole, Poland
| | - Mateusz Witkowski
- School of Physical Education and Sport, Adam Mickiewicz University in Poznań, Królowej Jadwigi 27, /39 61-871 Poznań, Poland
| |
Collapse
|
34
|
Kinney AL, Giel M, Harre B, Heffner K, McCullough T, Savino M, Scott A, Barrios JA. Surface Electromyography of the Internal and External Oblique Muscles During Isometric Tasks Targeting the Lateral Trunk. J Sport Rehabil 2020; 30:255-260. [PMID: 32369764 DOI: 10.1123/jsr.2018-0442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 03/10/2020] [Accepted: 03/19/2020] [Indexed: 09/07/2024]
Abstract
CONTEXT Tasks that activate the lateral trunk muscles are clinically relevant in athletic and rehabilitation programs. However, no electromyography studies have compared tasks aimed at lateral trunk muscle activation. OBJECTIVE To compare the activation magnitudes of the internal and external obliques between 4 tasks targeting recruitment of the lateral trunk muscles, including the proposal of a novel assessment. DESIGN Comparative laboratory study. SETTING University-based biomechanics laboratory. PARTICIPANTS Sixty-three participants (35 females, age = 23.6 [2.0] y, height = 1.72 [0.10] m, mass = 70.7 [14.4] kg, body mass index = 23.6 [2.86] kg/m2). INTERVENTION(S) Surface electromyography data were recorded bilaterally from the internal and external obliques while the participants performed 2 maximum voluntary contraction tasks followed by 4 isometric tasks. The isometric tasks included feet-elevated side-supported, trunk-elevated side-unsupported, lateral plank, and side-lying hip abduction. MAIN OUTCOME MEASURES Maximum voluntary contraction-normalized and integrated muscle activities were calculated for targeted and nontargeted muscles in each task. A side-by-task analysis of variance with Bonferroni correction was conducted. RESULTS The trunk-elevated side-unsupported task strongly activated the internal (199% maximum voluntary contraction) and external (103%) oblique muscles. The feet-elevated side-supported task strongly activated the internal obliques (205%) but not the external obliques (55%). The lateral plank task successfully activated the internal (107%) and external (72%) obliques, but not at the highest levels of the tested tasks. The side-lying hip abduction task was the least effective at activating either the internal (48%) or external (20%) obliques. CONCLUSIONS We recommend the novel trunk-elevated side-unsupported task for assessing lateral trunk muscle performance. For independent exercise, we recommend the lateral plank task, unless arm or shoulder pathologies are present, whereby the feet-elevated side-supported task may be favorable.
Collapse
|
35
|
Martínez-Romero MT, Ayala F, De Ste Croix M, Vera-Garcia FJ, Sainz de Baranda P, Santonja-Medina F, Sánchez-Meca J. A Meta-Analysis of the Reliability of Four Field-Based Trunk Extension Endurance Tests. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:E3088. [PMID: 32365490 PMCID: PMC7246735 DOI: 10.3390/ijerph17093088] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 04/26/2020] [Indexed: 12/30/2022]
Abstract
This meta-analysis aimed to estimate the inter- and intra-tester reliability of endurance measures obtained through trunk extension field-based tests and to explore the influence of the moderators on the reliability estimates. The reliability induction rate of trunk extension endurance measures was also calculated. A systematic search was conducted using various databases, and subsequently 28 studies were selected that reported intraclass correlation coefficients for trunk extension endurance measures. Separate meta-analyses were conducted using a random-effects model. When possible, analyses of potential moderator variables were carried out. The inter-tester average reliability of the endurance measure obtained from the Biering-Sorensen test was intraclass correlation coefficient (ICC) = 0.94. The intra-session reliability estimates of the endurance measures recorded using the Biering-Sorensen test, the prone isometric chest raise test, and the prone double straight-leg test were ICC = 0.88, 0.90, and 0.86, respectively. The inter-session average reliability of the endurance measures from the Biering-Sorensen test, the prone isometric chest raise test, and the dynamic extensor endurance test were ICC = 0.88, 0.95, and 0.99, respectively. However, due to the limited evidence available, the reliability estimates of the measures obtained through the prone isometric chest raise, prone double straight-leg, and dynamic extensor endurance tests should be considered with a degree of caution. Position control instruments, tools, and familiarization session demonstrated a statistical association with the inter-session reliability of the Biering-Sorensen test. The reliability induction rate was 72.8%. Only the trunk extension endurance measure obtained through the Biering-Sorensen test presented sufficient scientific evidence in terms of reliability to justify its use for research and practical purposes.
Collapse
Affiliation(s)
- María Teresa Martínez-Romero
- Department of Physical Activity and Sport, Faculty of Sports Sciences, University of Murcia, 30720 San Javier (Murcia), Spain
| | - Francisco Ayala
- Department of Sport Science, Sports Research Centre, Miguel Hernández University of Elche, 03202 Elche (Alicante), Spain
| | - Mark De Ste Croix
- School of Sport and Exercise, Exercise and Sport Research Centre, University of Gloucestershire, Gloucester GL2 9HW, UK
| | - Francisco J. Vera-Garcia
- Department of Sport Science, Sports Research Centre, Miguel Hernández University of Elche, 03202 Elche (Alicante), Spain
| | - Pilar Sainz de Baranda
- Department of Physical Activity and Sport, Faculty of Sports Sciences, University of Murcia, 30720 San Javier (Murcia), Spain
| | - Fernando Santonja-Medina
- Department of Surgery, Pediatrics, Obstetrics and Gynecology, Faculty of Medicine, University of Murcia, 30100 Murcia, Spain
- Traumatology and Orthopedic Surgery Service, Virgen de la Arrixaca University Clinical Hospital, 30120 Murcia, Spain
| | - Julio Sánchez-Meca
- Department of Basic Psychology and Methodology, Faculty of Psychology, University of Murcia, 30100 Murcia, Spain
| |
Collapse
|
36
|
Physical and cognitive exertion do not influence feedforward activation of the trunk muscles: a randomized crossover trial. Exp Brain Res 2019; 237:3011-3021. [DOI: 10.1007/s00221-019-05585-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 06/14/2019] [Indexed: 01/01/2023]
|
37
|
Asymmetry of lumbar muscles fatigability with non-specific chronic low back pain patients. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2019; 28:2526-2534. [DOI: 10.1007/s00586-019-06140-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 08/06/2019] [Accepted: 09/04/2019] [Indexed: 01/10/2023]
|
38
|
Gao C, Zheng Y, Fan C, Yang Y, He C, Wong M. Could the Clinical Effectiveness Be Improved Under the Integration of Orthotic Intervention and Scoliosis-Specific Exercise in Managing Adolescent Idiopathic Scoliosis?: A Randomized Controlled Trial Study. Am J Phys Med Rehabil 2019; 98:642-648. [PMID: 31318743 DOI: 10.1097/phm.0000000000001160] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
OBJECTIVE The aim of the study was to compare the effectiveness of the integration of orthotic intervention and scoliosis-specific exercise with orthotic intervention only via assessing the spinal deformity, back muscle endurance, and pulmonary function of the patients with adolescent idiopathic scoliosis. DESIGN It is a prospective randomized controlled study. Patients who fulfilled the SRS criteria for orthotic intervention were randomly assigned to the orthosis combined with exercise group (combined orthotic and exercise intervention) or the orthotic intervention group (orthotic intervention only). All the subjects were prescribed with a rigid thoracolumbosacral orthosis and scoliosis-specific exercise program was provided to the subjects in the orthosis combined with exercise group. Cobb angle, back muscle endurance, and pulmonary function of subjects were measured at baseline, 1-mo, and 6-mo follow-up visits. RESULTS After 6 mos of intervention, the subjects in the orthosis combined with exercise group showed better Cobb angle correction than those in the orthotic intervention group. The back muscle endurance and pulmonary function decreased in the subjects of the orthotic intervention group, whereas some improvement happened in the subjects of the orthosis combined with exercise group. Between-group statistical significance was detected at the 6-mo follow-up among back muscle endurance time and parameters of pulmonary function. CONCLUSIONS In this study, orthotic intervention combined with scoliosis-specific exercise offered better Cobb angle correction and improvement of the respiratory parameters and back muscle endurance of the patients with adolescent idiopathic scoliosis as compared with orthotic intervention only.
Collapse
Affiliation(s)
- Chengfei Gao
- From the Center of Rehabilitation Medicine, West China Hospital, Sichuan University, Chengdu, Sichuan Province, China (CG, CH); Department of Biomedical Engineering, The Hong Kong Polytechnic University, Hong Kong, China (CG, MW); Institute for Disaster Management and Reconstruction, Sichuan University-The Hong Kong Polytechnic University, Chengdu, Sichuan Province, China (CG, CH, MW); Department of Rehabilitation Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu Province, China (YZ); and Department of Rehabilitation Medicine, Wuxi Rehabilitation Hospital, Wuxi, Jiangsu Province, China (CG, YZ, CF, YY, MW)
| | | | | | | | | | | |
Collapse
|
39
|
De Blaiser C, De Ridder R, Willems T, Vanden Bossche L, Danneels L, Roosen P. Impaired Core Stability as a Risk Factor for the Development of Lower Extremity Overuse Injuries: A Prospective Cohort Study. Am J Sports Med 2019; 47:1713-1721. [PMID: 31034240 DOI: 10.1177/0363546519837724] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Core stability has been suggested to influence lower extremity functioning and might contribute to the development of lower extremity overuse injuries. However, prospective studies to investigate this relationship are limited. PURPOSE To research the role of different components of core stability as risk factors for the development of lower extremity overuse injuries. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS A total of 142 first-year physical education students participated in this study. They were tested in 2015 and were prospectively followed for 1.5 years by means of a multilevel injury registration method. Three participants were excluded owing to physical complaints during testing. As such, 139 participants were included in the statistical analysis. At baseline, dynamic postural control, isometric core and hip muscle strength, core muscle endurance, core neuromuscular control and proprioception, and functional movement were measured for all participants. Competing risk regression analyses were performed to identify significant contributors to the development of lower extremity overuse injuries. RESULTS During the follow-up period, 34 (24%) of the 139 participants developed a lower extremity overuse injury. Significant predictive effects for an overuse injury were found for an increased side-by-side difference in dynamic postural control ( P = .038), decreased isometric hip extension:flexion strength ratio ( P = .046), and decreased abdominal core muscle endurance ( P = .032). CONCLUSION This study identified measures for dynamic postural control, core muscle strength, and core muscle endurance as significant risk factors for the development of overuse injuries after statistical model building. However, core neuromuscular control and proprioception and functional movement might not allow clinicians to identify patients at risk. These accessible, reliable screening tools could be used in clinical practice with regard to screening and injury prevention for overuse injuries. Injury prediction based on this model needs to be done with caution given the low relative predictive accuracy (53%).
Collapse
Affiliation(s)
- Cedric De Blaiser
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Roel De Ridder
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Tine Willems
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | | | - Lieven Danneels
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| | - Philip Roosen
- Department of Rehabilitation Sciences, Ghent University, Ghent, Belgium
| |
Collapse
|
40
|
González-Gálvez N, Marcos-Pardo PJ, Carrasco-Poyatos M. Functional improvements after a pilates program in adolescents with a history of back pain: A randomised controlled trial. Complement Ther Clin Pract 2019; 35:1-7. [DOI: 10.1016/j.ctcp.2019.01.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 12/05/2018] [Accepted: 01/09/2019] [Indexed: 10/27/2022]
|
41
|
Applegate ME, France CR, Russ DW, Leitkam ST, Thomas JS. Sørensen test performance is driven by different physiological and psychological variables in participants with and without recurrent low back pain. J Electromyogr Kinesiol 2019; 44:1-7. [PMID: 30447543 DOI: 10.1016/j.jelekin.2018.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Revised: 10/19/2018] [Accepted: 11/08/2018] [Indexed: 11/17/2022] Open
Abstract
Time to task failure (TTF) on the Sørensen test predicts low back pain (LBP), but mechanisms driving TTF may vary in those with and without recurrent LBP. To determine the physiological and psychological predictors of TTF, 48 sex, age, and BMI matched participants (24 Healthy, 24 LBP) completed psychological surveys, maximal strength assessments, and the Sørensen test. A two-way ANOVA revealed no significant effects of group (p = 0.75) or sex (p = 0.21) on TTF. In the full sample, linear regression analyses revealed that normalized Median Power Frequency (MPF) slope of the Erector Spinae (β = 0.350, p < 0.01), the Biceps Femoris (β = 0.375, p < 0.01), and self-efficacy (β = 0.437, p < 0.01) predicted TTF. In the Healthy group, normalized MPF slope of the Erector Spinae (β = 0.470, p < 0.01), the Biceps Femoris (β = 0.437, p < 0.01), and self-efficacy (β = 0.330, p = 0.02) predicted TTF. In the LBP group, trunk mass (β = -0.369, p = 0.04) and self-efficacy (β = 0.450, p = 0.02) predicted TTF. In sum, self-efficacy consistently predicts performance, while trunk mass appears to negatively influence TTF only for those with recurrent LBP.
Collapse
Affiliation(s)
- Megan E Applegate
- John A. Paulson School of Engineering and Applied Sciences, Wyss Institute for Biologically Inspired Engineering, Harvard University, USA.
| | | | - David W Russ
- School of Rehabilitation and Communication Sciences, Division of Physical Therapy, Ohio University, USA
| | - Samuel T Leitkam
- School of Physical & Occupational Therapy, Department of Kinesiology and Physical Education, McGill University, Canada
| | - James S Thomas
- School of Rehabilitation and Communication Sciences, Division of Physical Therapy, Ohio University, USA
| |
Collapse
|
42
|
McCully KK, Moraes C, Patel SV, Green M, Willingham TB. Muscle-Specific Endurance of the Lower Back Erectors Using Electrical Twitch Mechanomyography. J Funct Morphol Kinesiol 2019; 4:jfmk4010012. [PMID: 33467327 PMCID: PMC7739340 DOI: 10.3390/jfmk4010012] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 11/30/2022] Open
Abstract
Lower back pain is a common symptom potentially associated with skeletal muscle dysfunction. The purpose of this study was to evaluate endurance in the lower back muscles of healthy participants using accelerometer-based mechanomyography. Methods: Young healthy subjects (N = 7) were tested. Surface electrodes and a tri-axial accelerometer were placed over the erector spinae muscle along the T11-L1 Vertebrae. Stimulation was for 3 min each at 2, 4, and 6 Hz, and changes in acceleration were used to calculate an endurance index (EI). Reproducibility of the endurance index measurements was tested on two separate days. Wrist flexor and vastus lateralis muscles were tested for comparison. Near Infrared Spectroscopy (NIRS) was used to measure muscle oxygen levels (O2Hb) (N = 5). EI was 70.3 + 13.4, 32.6 + 8.4, and 19.2 + 6.2% for 2, 4, 6 Hz, respectively. The coefficients of variation were 9.8, 13.9, and 20.3% for 2, 4, 6 Hz, respectively. EI values were lower in the erector spinae muscles compared to the arm and the leg (p < 0.05). O2Hb values were 86.4 + 10.9% at rest and were 77.2 + 15.5, 84.3 + 14.1, and 84.1 + 18.9% for 2, 4, 6 Hz, respectively (p > 0.05, all comparisons). An endurance index can be obtained from the lower back erectors muscles that is reproducible and not influenced by voluntary effort or muscle oxygen levels.
Collapse
Affiliation(s)
- Kevin K. McCully
- Department of Kinesiology, University of Georgia, Athens, GA 30602, USA
- Correspondence: ; Tel.: +1-706-542-1129
| | - Caio Moraes
- Department of Kinesiology, University of Georgia, Athens, GA 30602, USA
| | - Sahil V. Patel
- Department of Kinesiology, University of Georgia, Athens, GA 30602, USA
| | - Max Green
- AU-UGA Medical Partnership, Athens, GA 30606, USA
| | | |
Collapse
|
43
|
Short-Term Effects of Kinesio Taping® on Electromyographic Characteristics of Paraspinal Muscles, Pain, and Disability in Patients With Lumbar Disk Herniation. J Sport Rehabil 2018; 28:402-412. [PMID: 29405872 DOI: 10.1123/jsr.2017-0086] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Context: Kinesio taping® (KT) is a therapeutic modality frequently used in the clinical practice for the treatment of various musculoskeletal disorders. It is often applied in patients with chronic low back pain to decrease pain and improve functional capacity. However, it is not known, whether thoracolumbar fascia KT technique can decrease back pain, restore normal activity of paraspinal muscles, and improve functional capacity in patients with lumbar disk herniation (LDH). Objective: To evaluate the impact of 7-day new KT stabilizing application on lumbar paraspinal muscles function, pain perception, and disability in patients with LDH. Design: A randomized controlled trial. Setting: Human Performance Laboratory. Patients: A number of 38 patients with LDH were randomized into KT (n = 19) and placebo taping (n = 19) groups. Interventions: Both groups received the same "x" type application running over the back along fibers of superficial lamina of the posterior layer of thoracolumbar fascia. Main Outcome Measures: The primary outcome measures were flexion-relaxation and extension-relaxation ratios calculated from electromyographic activity of lumbar multifidus and longissimus thoracic muscles. Pain intensity rating (Quadruple Visual Analogue Scale), pressure pain thresholds of the lower back, Roland-Morris Disability Questionnaire score, back extension force, and flexion range of motion (ROM) were among secondary outcomes. Results: KT application did not affect the lumbar multifidus and longissimus thoracic muscles flexion-relaxation and extension-relaxation ratios, lower back pressure pain thresholds, back flexion ROM, and back extension force (no group × time interaction [GTI]). KT and placebo taping comparably decreased disability level (time effect: F1,36 = 22.817, P < .001; GTI: F1,36 = 0.189, P = .67), average pain (time effect: F1,36 =39.648, P < .001; GTI: F1,36 = 2.553, P = .12), and the worst pain (time effect: F1,36 = 36.039, P < .001; GTI: F1,36 = 0.003, P = .96) intensity. Conclusion: Seven-day KT does not normalize lumbar paraspinal muscle function and is not superior to placebo in reducing disability and pain intensity in patients with LDH.
Collapse
|
44
|
De Blaiser C, De Ridder R, Willems T, Danneels L, Roosen P. Reliability and validity of trunk flexor and trunk extensor strength measurements using handheld dynamometry in a healthy athletic population. Phys Ther Sport 2018; 34:180-186. [DOI: 10.1016/j.ptsp.2018.10.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/11/2018] [Accepted: 10/11/2018] [Indexed: 10/28/2022]
|
45
|
Applegate ME, France CR, Russ DW, Leitkam ST, Thomas JS. Determining Physiological and Psychological Predictors of Time to Task Failure on a Virtual Reality Sørensen Test in Participants With and Without Recurrent Low Back Pain: Exploratory Study. JMIR Serious Games 2018; 6:e10522. [PMID: 30201604 PMCID: PMC6231892 DOI: 10.2196/10522] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/20/2018] [Accepted: 06/21/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Sørensen trunk extension endurance test performance predicts the development of low back pain and is a strong discriminator of those with and without low back pain. Performance may greatly depend on psychological factors, such as kinesiophobia, self-efficacy, and motivation. Virtual reality video games have been used in people with low back pain to encourage physical activity that would otherwise be avoided out of fear of pain or harm. Accordingly, we developed a virtual reality video game to assess the influence of immersive gaming on the Sørensen test performance. OBJECTIVE The objective of our study was to determine the physiological and psychological predictors of time to task failure (TTF) on a virtual reality Sørensen test in participants with and without a history of recurrent low back pain. METHODS We recruited 24 individuals with a history of recurrent low back pain and 24 sex-, age-, and body mass index-matched individuals without a history of low back pain. Participants completed a series of psychological measures, including the Center for Epidemiological Studies-Depression Scale, Pain Resilience Scale, Pain Catastrophizing Scale, Tampa Scale for Kinesiophobia, and a self-efficacy measure. The maximal isometric strength of trunk and hip extensors and TTF on a virtual reality Sørensen test were measured. Electromyography of the erector spinae, gluteus maximus, and biceps femoris was recorded during the strength and endurance trials. RESULTS A two-way analysis of variance revealed no significant difference in TTF between groups (P=.99), but there was a trend for longer TTF in females on the virtual reality Sørensen test (P=.06). Linear regression analyses were performed to determine predictors of TTF in each group. In healthy participants, the normalized median power frequency slope of erector spinae (beta=.450, P=.01), biceps femoris (beta=.400, P=.01), and trunk mass (beta=-.32, P=.02) predicted TTF. In participants with recurrent low back pain, trunk mass (beta=-.67, P<.001), Tampa Scale for Kinesiophobia (beta=-.43, P=.01), and self-efficacy (beta=.35, P=.03) predicted TTF. CONCLUSIONS Trunk mass appears to be a consistent predictor of performance. Kinesiophobia appears to negatively influence TTF for those with a history of recurrent low back pain, but does not influence healthy individuals. Self-efficacy is associated with better performance in individuals with a history of recurrent low back pain, whereas a less steep median power frequency slope of the trunk and hip extensors is associated with better performance in individuals without a history of low back pain.
Collapse
Affiliation(s)
- Megan E Applegate
- Wyss Institute for Biologically Inspired Engineering, Cambridge, MA, United States
| | | | - David W Russ
- Department of Physical Therapy, Virginia Commonwealth University, Richmond, VA, United States.,Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University, Richmond, VA, United States
| | - Samuel T Leitkam
- School of Physical & Occupational Therapy, McGill University, Montreal, QC, Canada
| | - James S Thomas
- Department of Physical Therapy, Virginia Commonwealth University, Richmond, VA, United States
| |
Collapse
|
46
|
Sung W, Wong A, Pourshogi A, Pourrezaei K, Silfies S. Near infrared spectroscopy confirms recruitment of specific lumbar extensors through neuromuscular electrical stimulation. Physiother Theory Pract 2018; 36:516-523. [DOI: 10.1080/09593985.2018.1488908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Won Sung
- GSPP Penn Therapy and Fitness, Philadelphia, PA
| | - Ardy Wong
- School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Ahmad Pourshogi
- School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, USA
- Rhyton Group, Tehran, Iran
| | - Kambiz Pourrezaei
- School of Biomedical Engineering Science and Health Systems, Drexel University, Philadelphia, PA, USA
| | - Sheri Silfies
- College of Nursing and Health Professionals, Drexel University, Philadelphia, PA, USA
| |
Collapse
|
47
|
Lee SP, Smith JA, Kimber M, Houk K. Insertion and Presence of Fine-Wire Intramuscular Electrodes to the Lumbar Paraspinal Muscles Do Not Affect Muscle Performance and Activation During High-Exertion Spinal Extension Activities. PM R 2018; 10:1192-1197. [PMID: 29775800 DOI: 10.1016/j.pmrj.2018.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 04/26/2018] [Accepted: 05/05/2018] [Indexed: 10/14/2022]
Abstract
BACKGROUND Low back pain (LBP) is commonly associated with paraspinal muscle dysfunctions. A method to study deep lumbar paraspinal (ie, multifidus) muscle function and neuromuscular activation pattern is intramuscular electromyography (EMG). Previous studies have shown that the procedure does not significantly impact muscle function during activities involving low-level muscle contractions. However, it is currently unknown how muscular function and activation are affected during high-exertion contractions. OBJECTIVE To examine the effects of insertion and presence of fine-wire EMG electrodes in the lumbar multifidus on muscle strength, endurance, and activation profiles during high-exertion spinal extension muscle contractions. DESIGN Single-blinded, repeated measures intervention trial. SETTING University clinical research laboratory PARTICIPANTS: Twenty individuals between the ages of 18-40 free of recent and current back pain. METHODS Muscle performance was assessed during 3 conditions (with [WI] and without [WO] presence of intramuscular electrodes, and insertion followed by removal [IO]). Isometric spinal extension strength was assessed with a motorized dynamometer. Muscle endurance was assessed using the Sorensen test with neuromuscular activation profiles analyzed during the endurance test. MAIN OUTCOME MEASUREMENTS Spinal extensor muscle strength, endurance, and activation. RESULTS Our data showed no significant difference in isometric strength (P = .20) between the 3 conditions. A significant difference in muscle endurance was found (P = .03). Post hoc analysis showed that the muscle endurance in the IO condition was significantly higher than the WO condition (161.3 ± 58.3 versus 142.1 ± 48.2 seconds, P = .04), likely due to a learning effect. All 3 conditions elicited minimal pain (range 0-4/10) and comparable muscle activation profiles. CONCLUSION Our findings suggested the sonographically guided insertion and presence of fine-wire intramuscular EMG electrodes in the lumbar multifidus muscles had no significant impact on spinal extension muscle function. This study provides evidence that implementing intramuscular EMG does not affect muscle performance during high-exertion contractions in individuals with no current back pain. LEVEL OF EVIDENCE II.
Collapse
Affiliation(s)
- Szu-Ping Lee
- Department of Physical Therapy, University of Nevada, Las Vegas, 4505 S. Maryland Parkway, Box 453029, Las Vegas, NV 89154-3029(∗).
| | - Jo Armour Smith
- Department of Physical Therapy, Chapman University, Orange, CA(†)
| | - Matthew Kimber
- Department of Physical Therapy, University of Nevada, Las Vegas, NV(‡)
| | - Kelsey Houk
- Department of Physical Therapy, University of Nevada, Las Vegas, NV(§)
| |
Collapse
|
48
|
McCully KK, Prins P, Mistry K, Willingham TB. Muscle-specific endurance of the trapezius muscles using electrical twitch mechanomyography. Shoulder Elbow 2018; 10:136-143. [PMID: 29560041 PMCID: PMC5851126 DOI: 10.1177/1758573217726269] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 07/03/2017] [Accepted: 07/19/2017] [Indexed: 12/20/2022]
Abstract
BACKGROUND Symptoms of fatigue and pain are often reported for the trapezius muscle in the shoulder. The present study evaluated endurance in the trapezius muscles of healthy participants using electric twitch mechanomyography (ETM). METHODS Surface electrodes and a tri-axial accelerometer were placed over the left trapezius muscle. Muscles were stimulated for 3 min each at 2 Hz, 4 Hz and 6 Hz. Maintenance of acceleration during muscle twitches was used to calculate an endurance index (EI). Subjects (n = 9) were tested on two separate days to assess reproducibility of the trapezius EI measurements. The endurance measurements were made on the wrist flexor and vastus lateralis muscles for comparison. Near infrared spectroscopy was used to measure muscle oxygenation (HbO2) during the stimulation protocol (n = 8). RESULTS Mean (SD) EI was 84.9% (8.7%), 63.3% (19.1%) and 41.7% (20.0%) for 2 Hz, 4 Hz and 6 Hz, respectively. The coefficients of variation were 7.4%, 11.3% and 24.0% for 2 Hz, 4 Hz and 6 Hz, respectively. EI values were significantly lower in the trapezius compared to arm and leg muscles (p < 0.05). HbO2 values were unchanged from resting values with electrical stimulation. CONCLUSIONS The EI as measured by ETM may provide a reproducible method of evaluating function in trapezius muscles that is not influenced by oxygen saturation.
Collapse
Affiliation(s)
- Kevin K. McCully
- Kevin McCully, Department of Kinesiology, University of Georgia, 330 River Road, Athens, GA 30602, USA.
| | | | | | | |
Collapse
|
49
|
Feldwieser F, Kiselev J, Hardy S, Garcia-Agundez A, Eicher C, Steinhagen-Thiessen E, Göbel S. Evaluation of biofeedback based bridging exercises on older adults with low back pain: A randomized controlled trial. ACTA ACUST UNITED AC 2018. [DOI: 10.3233/ppr-170109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Florian Feldwieser
- Charité Universitätsmedizin Berlin, Geriatrics Research Group, Berlin, Germany
| | - Joern Kiselev
- Charité Universitätsmedizin Berlin, Geriatrics Research Group, Berlin, Germany
| | - Sandro Hardy
- Technische Universität Darmstadt, Multimedia Communications Lab – KOM, Darmstadt, Germany
| | - Augusto Garcia-Agundez
- Technische Universität Darmstadt, Multimedia Communications Lab – KOM, Darmstadt, Germany
| | - Cornelia Eicher
- Charité Universitätsmedizin Berlin, Geriatrics Research Group, Berlin, Germany
| | | | - Stefan Göbel
- Technische Universität Darmstadt, Multimedia Communications Lab – KOM, Darmstadt, Germany
| |
Collapse
|
50
|
de A Rocha V, do Carmo JC, Assis de O Nascimento F. Weighted-Cumulated S-EMG Muscle Fatigue Estimator. IEEE J Biomed Health Inform 2017; 22:1854-1862. [PMID: 29990024 DOI: 10.1109/jbhi.2017.2783849] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This paper addresses a new approach to objectively evaluate muscle fatigue in isometric and dynamic physical exertions using surface electromyography (S-EMG). The emphasis of this proposal is to preserve the spectral signature of the muscle fatigue phenomenon while reducing the spatial effects of electrode localization, and decreasing the disparity of results obtained by the same experimental protocol at different times. A cumulated and normalized modeling was sought to make evident the nonstationary characteristics of muscle fatigue that is gradually identified with its inertia and intensity. A metric involving the proposal of temporal, frequency, and time-frequency weighted-cumulated indicators is presented. Results based on real signals are shown for isometric and dynamic experimental protocols. Performance comparison of the various proposed weighted-cumulated indexes is shown and discussed. The presented approach for the objective cumulative evaluation of muscle fatigue with S-EMG signals has shown to be promising.
Collapse
|