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Pešić D, Đukić MM, Stanojević I, Živkovć V, Bolevich S, Bolevich S, Jakovljević V. Cardiorespiratory fitness mediates cortisol and lactate responses to winter and summer marches. J Med Biochem 2024; 43:72-85. [PMID: 38496029 PMCID: PMC10943469 DOI: 10.5937/jomb0-44369] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 06/26/2023] [Indexed: 03/19/2024] Open
Abstract
Background The influence of homeostatically regulated physiological processes, including cardiorespiratory fitness (VO2max), on the response to physical stressors such as acclimatisation and marching, remains understudied. We aimed to investigate the effects of summer and winter acclimatisation and marching on cortisol levels and blood lactate, to gain insight into the role of these physiological processes in the stress response. Methods Two groups of young Europeans, classified as poor (PCF; n=9) and good physical condition (GCF; n=21), based on a VO2MAX threshold of 40 mL O2/ kg/min, underwent 2-h March (6-7 km/h) in winter (5˚C) and summer (32˚C). Commercial tests, UniCel DxI Access Cortisol assay and EKF Biosen Clinic/GP assay were used for cortisol and lactate blood measurements (morning samples and those taken immediately after marches), respectively.
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Affiliation(s)
- Deniel Pešić
- Military Medical Academy, Institute of Hygiene, Department of Exercise Physiology, Belgrade
| | - Mirjana M. Đukić
- University of Belgrade, Faculty of Pharmacy, Department of Toxicology, Belgrade
| | - Ivan Stanojević
- Military Medical Academy, Institute of Medical Research, Belgrade
| | - Vladimir Živkovć
- University of Kragujevac, Faculty of Medical Sciences, Department of Physiology, Kragujevac
| | - Sergey Bolevich
- First Moscow State Medical University I. M. Sechenov, Department of Pharmacology, Moscow, Russia
| | - Stefani Bolevich
- First Moscow State Medical University I. M. Sechenov, Department of Pharmacology, Moscow, Russia
| | - Vladimir Jakovljević
- University of Kragujevac, Faculty of Medical Sciences, Department of Physiology, Kragujevac
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Raichlen DA, Klimentidis YC, Bharadwaj PK, Alexander GE. Differential associations of engagement in physical activity and estimated cardiorespiratory fitness with brain volume in middle-aged to older adults. Brain Imaging Behav 2021; 14:1994-2003. [PMID: 31209836 DOI: 10.1007/s11682-019-00148-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Previous work has confirmed the benefits of aerobic exercise for brain aging, however mechanisms underlying these effects remain unclear. Two measures of exercise, time spent in moderate-to-vigorous physical activity (MVPA) and cardiorespiratory fitness (CRF), may reflect different pathways linking activity to brain health. Using data from the UK Biobank, the largest sample combining neuroimaging and objectively measured MVPA available to date (n = 7148, nmale = 3062, nfemale = 4086; age = 62.14 ± 7.40 years), we found that, when adjusted for covariates including MVPA, CRF was positively associated with overall gray matter volume (FDR p = 1.28E-05). In contrast, when adjusted for covariates including CRF, MVPA was positively associated with left and right hippocampal (FDR pleft = 0.01; FDR pright = 0.02) volumes, but not overall gray matter volume. Both CRF and MVPA were inversely associated with white matter hyperintensity lesion loads (FDR pCRF = 0.002; pMVPA = 0.02). Our results suggest separable effects of engagement in exercise behaviors (MVPA) and the physiological effects of exercise (CRF) on structural brain volumes, which may have implications for differential pathways linking exercise and brain benefits.
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Affiliation(s)
- David A Raichlen
- School of Anthropology, University of Arizona, 1009 E. South Campus Dr., Tucson, AZ, 85721, USA.
| | - Yann C Klimentidis
- Department of Epidemiology and Biostatistics, Mel and Enid Zuckerman College of Public Health, University of Arizona, Tucson, AZ, USA.,BIO5 Institute, University of Arizona, Tucson, AZ, USA
| | - Pradyumna K Bharadwaj
- Department of Psychology, University of Arizona, 1503 E. University, Tucson, AZ, 85721, USA.,Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, USA
| | - Gene E Alexander
- BIO5 Institute, University of Arizona, Tucson, AZ, USA. .,Department of Psychology, University of Arizona, 1503 E. University, Tucson, AZ, 85721, USA. .,Evelyn F. McKnight Brain Institute, University of Arizona, Tucson, AZ, USA. .,Department of Psychiatry, University of Arizona, Tucson, AZ, USA. .,Neuroscience Graduate Interdisciplinary Program, University of Arizona, Tucson, AZ, USA. .,Physiological Sciences Graduate Interdisciplinary Program, University of Arizona, Tucson, AZ, USA. .,Arizona Alzheimer's Consortium, Phoenix, AZ, USA.
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Lanferdini FJ, Silva ES, Machado E, Fischer G, Peyré-Tartaruga LA. Physiological Predictors of Maximal Incremental Running Performance. Front Physiol 2020; 11:979. [PMID: 32848890 PMCID: PMC7419685 DOI: 10.3389/fphys.2020.00979] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 07/20/2020] [Indexed: 11/13/2022] Open
Abstract
Purpose The aim of this study was to verify whether physiological components [vertical jumps (Squat Jump - SJ and Countermovement Jump - CMJ), eccentric utilization ratio (EUR) of vertical jumps, running economy (RE), metabolic cost (C MET ), first and second ventilatory threshold (VT1 and VT2) maximal oxygen uptake (VO2MAX)] can predict maximal endurance running performance. Methods Twenty male runners performed maximal vertical jumps, submaximal running at constant speeds, and maximal incremental running test. Before, we measured anthropometric parameters (body mass and height) and registered the training history and volume. SJ and CMJ tests were evaluated prior to running tests. Initially, the oxygen uptake (VO2) was collected at rest in the orthostatic position for 6 min. Soon after, a 10-min warm-up was performed on the treadmill at 10 km⋅h-1, followed by two 5-min treadmill rectangular tests at 12 and 16 km⋅h-1 monitored by a gas analyzer. After that, the runners performed a maximal incremental test, where the VT1, VT2, and VO2MAX were evaluated, as well as the maximum running speed (vVO2MAX). Thus, RE and C MET were calculated with data obtained during rectangular running tests. Multivariate stepwise regression analyses were conducted to measure the relationship between independent variables (height and power of SJ and CMJ, EUR; RE and C MET 12 and 16 km⋅h-1 ; VT1, VT2, and VO2MAX), as predictors of maximal running performance (vVO2MAX), with significance level at α = 0.05. Results We found that VO2MAX and RE at 16 km⋅h-1 predict 81% of performance (vVO2MAX) of endurance runners (p < 0.001). Conclusion The main predictors of the maximal incremental running test performance were VO2MAX and RE.
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Affiliation(s)
- Fábio J Lanferdini
- Laboratório de Biomecânica, Centro de Desportos, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Edson S Silva
- Laboratório de Pesquisa do Exercício, Escola de Educação Física, Fisioterapia e Dança, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Esthevan Machado
- Laboratório de Pesquisa do Exercício, Escola de Educação Física, Fisioterapia e Dança, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Gabriela Fischer
- Laboratório de Biomecânica, Centro de Desportos, Universidade Federal de Santa Catarina, Florianópolis, Brazil
| | - Leonardo A Peyré-Tartaruga
- Laboratório de Pesquisa do Exercício, Escola de Educação Física, Fisioterapia e Dança, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
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Pires FO, Dos Anjos CAS, Covolan RJM, Fontes EB, Noakes TD, St Clair Gibson A, Magalhães FH, Ugrinowitsch C. Caffeine and Placebo Improved Maximal Exercise Performance Despite Unchanged Motor Cortex Activation and Greater Prefrontal Cortex Deoxygenation. Front Physiol 2018; 9:1144. [PMID: 30246799 PMCID: PMC6113857 DOI: 10.3389/fphys.2018.01144] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 07/30/2018] [Indexed: 11/13/2022] Open
Abstract
Caffeine (CAF) is an ergogenic aid used to improve exercise performance. Independent studies have suggested that caffeine may have the ability to increase corticospinal excitability, thereby decreasing the motor cortex activation required to generate a similar motor output. However, CAF has also been suggested to induce a prefrontal cortex (PFC) deoxygenation. Others have suggested that placebo (PLA) may trigger comparable effects to CAF, as independent studies found PLA effects on motor performance, corticospinal excitability, and PFC oxygenation. Thus, we investigated if CAF and CAF-perceived PLA may improve motor performance, despite the likely unchanged MC activation and greater PFC deoxygenation. Nine participants (26.4 ± 4.8 years old, VO2MAX of 42.2 ± 4.6 mL kg-1 min-1) performed three maximal incremental tests (MITs) in control (no supplementation) and ∼60 min after CAF and PLA ingestion. PFC oxygenation (near-infrared spectroscopy at Fp1 position), MC activation (EEG at Cz position) and vastus lateralis and rectus femoris muscle activity (EMG) were measured throughout the tests. Compared to control, CAF and PLA increased rectus femoris muscle EMG (P = 0.030; F = 2.88; d = 0.84) at 100% of the MIT, and enhanced the peak power output (P = 0.006; F = 12.97; d = 1.8) and time to exhaustion (P = 0.007; F = 12.97; d = 1.8). In contrast, CAF and PLA did not change MC activation, but increased the PFC deoxygenation as indicated by the lower O2Hb (P = 0.001; F = 4.68; d = 1.08) and THb concentrations (P = 0.01; F = 1.96; d = 0.7) at 80 and 100% the MIT duration. These results showed that CAF and CAF-perceived PLA had the ability to improve motor performance, despite unchanged MC activation and greater PFC deoxygenation. The effectiveness of CAF as ergogenic aid to improve MIT performance was challenged.
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Affiliation(s)
- Flavio O Pires
- Exercise Psychophysiology Research Group, School of Arts, Sciences and Humanities, University of São Paulo, São Paulo, Brazil
| | - Carlos A S Dos Anjos
- Neurophysics Group, Gleb Wataghin Physics Institute, University of Campinas, Campinas, Brazil
| | - Roberto J M Covolan
- Neurophysics Group, Gleb Wataghin Physics Institute, University of Campinas, Campinas, Brazil
| | - Eduardo B Fontes
- Research Group in Physical Activity, Cognition and Behavior, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Timothy D Noakes
- Sports Science Institute of South Africa, Department of Human Biology, University of Cape Town, Cape Town, South Africa
| | | | - Fernando H Magalhães
- Exercise Psychophysiology Research Group, School of Arts, Sciences and Humanities, University of São Paulo, São Paulo, Brazil
| | - Carlos Ugrinowitsch
- School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil
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Kocher M, McDermott M, Lindsey R, Shikuma CM, Gerschenson M, Chow DC, Kohorn LB, Hetzler RK, Kimura IF. Short Communication: HIV Patient Systemic Mitochondrial Respiration Improves with Exercise. AIDS Res Hum Retroviruses 2017; 33:1035-1037. [PMID: 28467726 DOI: 10.1089/aid.2016.0287] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
In HIV-infected individuals, impaired mitochondrial function may contribute to cardiometabolic disease as well as to fatigue and frailty. Aerobic exercise improves total body energy reserves; however, its impact at the cellular level is unknown. We assessed alterations in cellular bioenergetics in peripheral blood mononuclear cells (PBMC) before and after a 12-week aerobic exercise study in sedentary HIV-infected subjects on stable antiretroviral therapy who successfully completed a 12-week aerobic exercise program. In this prospective study, participants underwent supervised 20-40 min of light aerobic exercise (walking or jogging) performed three times per week for 12 weeks, gradually increasing to maintain an intensity of 50%-80% of heart rate reserve. Maximal aerobic capacity (VO2MAX) was assessed by a graded exercise test on a cycle ergometer before and after completion of the study. PBMC from compliant subjects (attended at least 70% of exercise sessions) were assessed for mitochondrial respiration using the Seahorse XF24 Bio-Analyzer. Seven of 24 enrolled subjects were compliant with the exercise regimen. In these individuals, a significant increase (p = .04) in VO2MAX over 12 weeks was found with a median increase of 14%. During the same interval, a 2.45-fold increase in PBMC mitochondrial respiratory capacity (p = .04), a 5.65-fold increase in spare respiratory capacity (p = .01), and a 3.15-fold (p = .04) increase in nonmitochondrial respiration was observed. Aerobic exercise improves respiration at the cellular level. The diagnostic and prognostic value of such improved cellular respiration in the setting of chronic HIV warrants further investigation.
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Affiliation(s)
- Morgan Kocher
- Department of Kinesiology and Rehabilitation Science, College of Education, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Mindy McDermott
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Rachel Lindsey
- Department of Kinesiology and Rehabilitation Science, College of Education, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Cecilia M. Shikuma
- Department of Medicine, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Mariana Gerschenson
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Dominic C. Chow
- Department of Medicine, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Lindsay B. Kohorn
- Department of Cell and Molecular Biology, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Ronald K. Hetzler
- Department of Kinesiology and Rehabilitation Science, College of Education, University of Hawaii at Manoa, Honolulu, Hawaii
| | - Iris F. Kimura
- Department of Kinesiology and Rehabilitation Science, College of Education, University of Hawaii at Manoa, Honolulu, Hawaii
- Department of Medicine, Hawaii Center for AIDS, John A. Burns School of Medicine, University of Hawaii at Manoa, Honolulu, Hawaii
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Abstract
Exercise at different cadences might serve as potential stimulus for functional adaptations of the brain, because cortical activation is sensitive to frequency of movement. Therefore, we investigated the effects of high (HCT) and low cadence training (LCT) on brain cortical activity during exercise as well as endurance performance. Cyclists were randomly assigned to low and high cadence training. Over the 4-week training period, participants performed 4 h of basic endurance training as well as four additional cadence-specific exercise sessions, 60 min weekly. At baseline and after 4 weeks, participants completed an incremental exercise test with spirometry and exercise at constant load with registration of electroencephalogram (EEG). Compared with LCT, a greater increase of frontal alpha/beta ratio was confirmed in HCT. This was based on a lower level of beta activity during exercise. Both groups showed similar improvements in maximal oxygen consumption and power at the individual anaerobic threshold. Whereas HCT and LCT elicit similar benefits on aerobic performance, cycling at high pedalling frequencies enables participants to perform an exercise bout with less cortical activation.
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Affiliation(s)
- Sebastian Ludyga
- a Department of Sport, Exercise and Health , University of Basel , Basel , Switzerland
| | - Kuno Hottenrott
- b Institute of Performance Diagnostics and Health Promotion , Martin Luther University Halle-Wittenberg , Germany.,c Department of Sport Sciences , Martin Luther University Halle-Wittenberg , Halle (Saale) , Germany
| | - Thomas Gronwald
- b Institute of Performance Diagnostics and Health Promotion , Martin Luther University Halle-Wittenberg , Germany.,d Faculty for Sport , University of Health and Sport Berlin , Berlin , Germany
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