Article
Chemistry, Analytical
Hassan M. Qassim, Wan Zuha Wan Hasan, Hafiz R. Ramli, Hazreen Haizi Harith, Liyana Najwa Inche Mat, Luthffi Idzhar Ismail
Summary: This paper presents a new fatigue index algorithm based on a double-step binary classifier for the objective detection of muscle fatigue. The algorithm analyzes the sEMG signals in both the time and frequency domains and calculates the difference between the instantaneous mean amplitude values of the low-frequency and high-frequency components of the EMG to determine muscle fatigue. The proposed algorithm achieved a high accuracy of 94.66% in distinguishing between muscle fatigue and non-fatigue conditions.
Article
Multidisciplinary Sciences
Dagmara Iwanska, Piotr Tabor, Olga Grabowska, Andrzej Mastalerz
Summary: The study found that curved tracks have an impact on asymmetric muscle activity and running kinematics in the initial sections of the run. There was a noticeable difference in muscle fatigue between the right and left limbs, with a lower fatigue index for the right limb. The results suggest a connection between muscle activity, nervous system stimulation, and adjustments in running form based on track conditions.
Article
Engineering, Electrical & Electronic
Navaneethakrishna Makaram, P. A. Karthick, Ramakrishnan Swaminathan
Summary: The measurement and analysis of electrical activity of muscle aid in controlling assistive devices. Muscle fatigue is associated with loss of muscle function and detection via sEMG is challenging due to nonlinear signal variations. This study aims to develop a reliable fatigue index based on dynamic nonlinear variations in signal characteristics, achieving an accuracy of 90% using machine learning algorithms.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Rehabilitation
Aleksandra Radecka, Anna Knyszynska, Anna Lubkowska
Summary: The study aims to verify potential differences in the fatigue sEMG signal between PwMs and CG. The results demonstrate that PwMs show an opposite pattern of preservation of the absolute value of ARMs during prolonged contraction to fatigue, compared with healthy subjects. These findings are crucial for clinical trials using sEMG to assess fatigue in PwMs.
EUROPEAN JOURNAL OF PHYSICAL AND REHABILITATION MEDICINE
(2023)
Review
Biotechnology & Applied Microbiology
Xiao Hou, Jingmin Liu, Kaixiang Weng, Lisa Griffin, Laura A. Rice, Yih-Kuen Jan
Summary: This study found that compression and LEDT have a significant effect on reducing muscle fatigue, and compression, active recovery, and cooling have a significant effect on reducing muscle fatigue when applied during exercise, but not after exercise.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Surgery
Tegan Thurston, James P. Dolan, Farah Husein, Andrea Stroud, Kenneth Funk, Charlie Borzy, Xinhui Zhu
Summary: Surgeons experience physical stress and fatigue during laparoscopic surgery, with less experienced surgeons being at higher risk. This study provides insights into the importance of surgeon ergonomics and the need for training programs to minimize occupational injury risk.
SURGICAL ENDOSCOPY AND OTHER INTERVENTIONAL TECHNIQUES
(2022)
Article
Engineering, Electrical & Electronic
Bartlomiej Zagrodny, Wiktoria Wojnicz, Michal Ludwicki, Jan Awrejcewicz
Summary: This study aimed to evaluate muscle activation during gait using sEMG and thermal imaging, finding a relationship between muscle activation and thermal factors at low fatigue levels. The results showed moderate linear and nonlinear correlations between thermal and electromyographic parameters under low muscle fatigue, suggesting the usefulness of thermal imaging as a complement to sEMG in analyzing muscle activation.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2021)
Article
Sport Sciences
Robert W. Smith, Terry J. Housh, John Paul V. Anders, Tyler J. Neltner, Jocelyn E. Arnett, Richard J. Schmidt, Glen O. Johnson
Summary: This study used the ratings of perceived exertion (RPE)-clamp model to examine the effects of joint angle on torque and neuromuscular responses during a sustained, isometric forearm flexion task to failure. The results showed that joint angle had an impact on torque and neuromuscular responses.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2023)
Article
Physics, Multidisciplinary
Philippe Ravier, Antonio Davalos, Meryem Jabloun, Olivier Buttelli
Summary: Surface electromyography (sEMG) is a valuable technique for providing information about muscle electric activity, and Multiscale Permutation Entropy (MPE) is an effective tool for extracting information from sEMG time series. This study demonstrates the superiority of rcDPE in quantifying fatigue levels based on sEMG data.
Article
Multidisciplinary Sciences
Lingyu Wang, Mingzhu Fang, Jie Hu
Summary: This study investigated the effects of different levels of vibration massage on fatigue alleviation in the upper trapezius muscles. A fatigue identification and vibration massage model for the upper trapezius muscles was developed.
Article
Sport Sciences
Flavio Da Silva, Florian Monjo, Firas Zghal, Frederic Chorin, Olivier Guerin, Serge S. Colson
Summary: The study found that acute eccentric exercise-induced central fatigue contributes to disturbances in position sense and alterations in sensory structures responsible for processing position-related sensory inputs. Despite the presence of persisting peripheral fatigue and delayed-onset muscle soreness, voluntary activation levels recovered in the following days. Knee position sense was significantly altered only immediately after the exercise, with participants overestimating the length of their knee extensor.
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
(2021)
Article
Chemistry, Multidisciplinary
Dekui Song, Guo Ye, Yan Zhao, Yan Zhang, Xincun Hou, Nan Liu
Summary: We have developed a multifunctional, bioderived, air-permeable, and sweat-stable MXene electrode that can diagnose muscle fatigue and restore muscle function through electrostimulation and electrothermal therapy at the skin surface.
Article
Engineering, Biomedical
Rory O'Keeffe, Jinghui Yang, Sarmad Mehrdad, Smita Rao, S. Farokh Atashzar
Summary: This study evaluated the test-retest reliability of non-parametric lower-limb functional muscle networks for controlled and lightly-controlled tasks in healthy subjects. The results showed superior between-session reliability for muscle networks compared to common surface electromyography measures. The findings suggest that topographical metrics generated from functional muscle networks can be used for multi-session observations and serve as potential biomarkers during rehabilitation.
IEEE TRANSACTIONS ON NEURAL SYSTEMS AND REHABILITATION ENGINEERING
(2023)
Article
Geriatrics & Gerontology
Paulo Cezar Rocha dos Santos, Claudine J. C. Lamoth, Lilian Teresa Bucken Gobbi, Inge Zijdewind, Fabio Augusto Barbieri, Tibor Hortobagyi
Summary: The study compared muscle activation patterns of older and younger adults during repetitive sit-to-stand tasks, finding that older adults activated certain muscles more, earlier, and for longer duration. Despite completing fewer STS trials, older adults reported similar perceived exertion levels as younger adults. Maximum voluntary isometric knee extension force decreased at the end of the task, with similar declines in muscle activation levels across different age groups.
FRONTIERS IN AGING NEUROSCIENCE
(2021)
Article
Sport Sciences
Ahmed Graja, Maissa Kacem, Omar Hammouda, Rihab Borji, Mohamed A. Bouzid, Nizar Souissi, Haithem Rebai
Summary: This study aimed to assess the physical, neuromuscular, and biochemical responses of female handball players to repeated sprint exercise during different menstrual phases. The findings suggest that training during the premenstrual phase may lead to more peripheral fatigue and muscle damage, as well as decreased neuromuscular efficiency.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2022)
Article
Rehabilitation
Julio Cesar de Oliveira Muniz Cunha, Estevao Rios Monteiro, David G. Behm, Victor Goncalves Correa Neto, Michelle de Souza Ribeiro, Christiano Bittencourt Machado, Giovanni da Silva Novaes, Rhodes Serra, Jeferson Macedo Vianna, Jefferson da Silva Novaes
Summary: The study compared the effects of myofascial release and muscle energy on acute outcomes in trunk extensors for recreationally resistance-trained women. Both techniques were found to improve trunk range-of-motion, with myofascial release showing greater magnitude increases.
JOURNAL OF BODYWORK AND MOVEMENT THERAPIES
(2023)
Article
Hospitality, Leisure, Sport & Tourism
Jordan K. Foley, Karl T. Erickson, Erin L. McGowan, David G. Behm
Summary: The demographic characteristics of Canadian strength and conditioning coaches were investigated in this study. The results showed that the typical Canadian S&C coach is male, in their thirties, works in the private sector, holds a bachelor's degree, and has the NSCA-CSCS certification.
INTERNATIONAL JOURNAL OF SPORTS SCIENCE & COACHING
(2023)
Article
Physiology
Zachary J. McClean, Abbey Young, Andrew J. Pohl, Nowell M. Fine, Jamie F. Burr, Martin MacInnis, Saied J. Aboodarda
Summary: This study aimed to characterize the neuromuscular, perceptual, and cardiorespiratory responses to high-intensity interval training (HIIT) with superimposed blood flow restriction in males and females. The results showed that the application of blood flow restriction exacerbated the neuromuscular, perceptual, and cardiorespiratory responses, and the effects were more pronounced in females than males.
JOURNAL OF APPLIED PHYSIOLOGY
(2023)
Review
Sport Sciences
Shahab Alizadeh, Abdolhamid Daneshjoo, Ali Zahiri, Saman Hadjizadeh Anvar, Reza Goudini, Jared P. Hicks, Andreas Konrad, David George Behm
Summary: This systematic review with meta-analysis aimed to evaluate the effects of chronic resistance training on range of motion compared to different conditions. The findings suggest that resistance training can increase range of motion and stretching may not be necessary to enhance flexibility before or after resistance training.
Article
Sport Sciences
Victor Pulido, Brent Alvar, David Behm
Summary: This study compared three different protocols (Traditional, BodybladeTM, and Mixed) for shoulder rehabilitation on athletes with TASI. The results showed that all three training groups improved their scores on the WOSI and the Traditional and BodybladeTM groups demonstrated significant improvements in UQYBT scores.
INTERNATIONAL JOURNAL OF SPORTS PHYSICAL THERAPY
(2023)
Article
Physiology
Zachary John McClean, Jenny Zhang, Neda Khaledi, Matthew Yacoub, Saied Jalal Aboodarda
Summary: Intermittent blood flow occlusion can impair muscle function and exercise tolerance. Longer occlusion duration leads to greater decline in muscle force and fatigue, as well as increased dyspnea. Exercise tolerance during blood flow occlusion is mainly influenced by muscle contractility and perception of effort and pain.
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
(2023)
Article
Physiology
Saman Hadjizadeh Anvar, Urs Granacher, Andreas Konrad, Shahab Alizadeh, Robyn Culleton, Chris Edwards, Reza Goudini, David G. Behm
Summary: The purpose of this study was to investigate the effects and mechanisms of muscle stretching on the range of motion (ROM) and force deficit in non-stretched muscles. The results showed that static stretching significantly improved the ROM of the stretched muscles, but had a negative impact on force production. Furthermore, both the ROM improvement and force impairment were transferred to the contralateral muscles, and there were no significant changes in spinal and corticospinal excitability.
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
(2023)
Article
Geriatrics & Gerontology
Abdolhamid Daneshjoo, Hassan Sadeghi, Rasoul Yaali, David G. Behm
Summary: This study compared the strength ratio and proprioception of hamstrings and quadriceps muscles in elderly male fallers and non-fallers. The results showed that non-fallers had higher strength and better symmetry, bilateral and unilateral knee strength ratios, as well as more sensitive knee proprioception than fallers.
EXPERIMENTAL GERONTOLOGY
(2023)
Review
Sport Sciences
David G. Behm, Shahab Alizadeh, Abdolhamid Daneshjoo, Andreas Konrad
Summary: The use of dynamic stretching as a replacement for static stretching in warm-up is widespread, but there is a lack of literature on the effects of dynamic stretching on injury incidence. Studies have shown mixed results, with some demonstrating positive effects on injury incidence while others showing no significant difference. The effects of dynamic stretching on range of motion, strength, balance, proprioception, muscle morphology, and psycho-physiological responses are also unclear. More extensive studies are needed in this area to provide clearer conclusions.
Article
Multidisciplinary Sciences
Monoem Haddad, Zied Abbes, Nidhal Zarrouk, Zlatan Aganovic, Albraa Hulweh, Imen Moussa-Chamari, David G. Behm
Summary: The objective of this study was to determine and compare leg asymmetry between preferred dominant and non-dominant legs in muscular power and balance among sub-elite soccer players in Qatar. The findings showed that these players had minimal leg asymmetry in vertical jump and dynamic balance. These findings are helpful for talent assessment and training optimization.
Article
Multidisciplinary Sciences
Jamie Pethick, Jason Moran, David G. Behm
Summary: Static stretching reduces maximal muscle force generation and also affects the generation of precise levels of force during submaximal contractions. In this study, the effect of acute static stretching on knee extensor force control was investigated. The results showed that prolonged static stretching led to decreased maximal force and increased fluctuations in force at moderate to high intensities, indicating negative effects on force control tasks.
Review
Sport Sciences
David G. Behm, Urs Granacher, Konstantin Warneke, Jose Carlos Aragao-Santos, Marzo Edir Da Silva-Grigoletto, Andreas Konrad
Summary: Research has shown that for sedentary individuals or beginners not meeting minimal exercise recommendations, one weekly resistance training session at intensities below 50% of 1RM with < 3 sets per multi-joint exercise can be sufficient to improve physical fitness for at least the first 12 weeks.
Article
Rehabilitation
Foad Mahmoudi, Nader Rahnama, Abdolhamid Daneshjoo, David G. Behm
Summary: This study compares static and dynamic balance in soccer players in different positions and finds that goalkeepers have better static and dynamic balance, while midfielders have better dynamic balance. Therefore, the evaluation of balance and postural control performance should be considered in the position-specific functional evaluation of soccer players.
JOURNAL OF BODYWORK AND MOVEMENT THERAPIES
(2023)
Review
Rehabilitation
Flavia Medeiros, Wagner Martins, David Behm, Deise Ribeiro, Emmanuela Marinho, Wanderson Santos, Ricardo Borges Viana
Summary: This systematic review and meta-analysis examined the effects of foam roller or stick massage on indirect markers of muscle damage in healthy individuals after exercise-induced muscle damage protocols. The results showed that foam roller or stick massage had no significant effect on muscle soreness, range of motion, muscle swelling, and maximal voluntary isometric contraction recovery. The included studies had methodological heterogeneity and there is a lack of high-quality and well-designed studies to draw definite conclusions.
JOURNAL OF BODYWORK AND MOVEMENT THERAPIES
(2023)
Letter
Sport Sciences
Rodrigo Ramirez-Campillo, Jose Afonso, Jason Moran, David G. G. Behm, Urs Granacher
SPORTS MEDICINE-OPEN
(2023)