@article{5dc6857a63cf4a75ad823fdd5cbb40c9,
title = "Active recovery has a positive and acute effect on recovery from fatigue induced by repeated maximal voluntary contractions of the plantar flexors",
abstract = "This study investigated the acute effect of active recovery (AR) following fatigue induced by 80 three-second maximal voluntary isometric plantar flexion contractions (MVICs) in 12 young men. AR consisted of a total of 180 voluntary isometric ramp contractions of the plantar flexors (0.75-s contraction/relaxation) targeting 10% of MVIC torque. MVIC torque, voluntary activation and root mean square values of electromyographic signals for the triceps surae normalized by each peak-to-peak amplitude of compound motor action potential were determined before, and immediately, 10, 20 and 30 min after the fatiguing task. Evoked torques were similarly assessed except for immediately after it. The AR and passive recovery were randomly performed on two days by each participant between 5 min and 10 min after the fatiguing task. For all the parameters other than MVIC torque, there was no significant difference between the conditions at any time point. MVIC torque decreased significantly immediately after the fatiguing task regardless of condition (P < 0.05), and the corresponding decrease in MVIC torque recovered 30 min after the fatiguing task only in AR (P < 0.05). These results suggest an acute positive effect of AR on recovery of neuromuscular function and/or contractile properties after fatigue.",
keywords = "Central fatigue, Electromyography, Peripheral fatigue, Plantar flexion, Ramp contraction",
author = "Ryota Akagi and Naoto Imaizumi and Shinya Sato and Naoya Hirata and Hiroki Tanimoto and Kosuke Hirata",
note = "Funding Information: This study was supported by JSPS KAKENHI under Grant JP16H05918 (Grant-in-Aid for Young Scientists (A)) and JP17KK0174 (Fund for the Promotion of Joint International Research, Fostering Joint International Research). Ryota Akagi is an associate professor at College of Systems Engineering and Science, Shibaura Institute of Technology, Saitama, Japan. He received his BSc in Engineering, MSc in Human Sciences and PhD in Sports Sciences at Waseda University in 2004, 2006 and 2009, respectively. After receiving his PhD, he successively held positions as a postdoctoral fellow of Japan Society for the Promotion of Science and a researcher of Japan Institute of Sports Sciences. His main research interests are in the area of muscle biomechanics and physiology. Naoto Imaizumi is an employee of a private company. He obtained his BSc at College of Systems Engineering and Science, Shibaura Institute of Technology in 2019. His research topic was “active recovery from muscle fatigue” when he was an undergraduate student. Shinya Sato is a master{\textquoteright}s student of Graduate School of Engineering and Science, Shibaura Institute of Technology, Saitama, Japan. He obtained his BSc at College of Systems Engineering and Science, Shibaura Institute of Technology in 2018. He is currently in the process of preparing his master{\textquoteright}s thesis. His research interest is to investigate the effects of multi-joint exercises on strength of several single-joints. Naoya Hirata is a master{\textquoteright}s student of Graduate School of Engineering and Science, Shibaura Institute of Technology, Saitama, Japan. He obtained his BSc at College of Systems Engineering and Science, Shibaura Institute of Technology in 2019. His research interest is to investigate individual differences in muscle fatigue. Hiroki Tanimoto is a master{\textquoteright}s student of Graduate School of Health Management, Keio University, Kanagawa, Japan. He obtained his BSc at College of Systems Engineering and Science, Shibaura Institute of Technology in 2019. When he was an undergraduate student, he investigated the effect of icing on muscle fatigue. Kosuke Hirata belongs to Graduate School of Engineering and Science, Shibaura Institute of Technology, Saitama, Japan, as a postdoctoral fellow of Japan Society for the Promotion of Science. He received his BSc and MSc in Sports Sciences at Waseda University in 2009 and 2011, respectively. After working as a researcher at Department of Sports and Life Science, National Institute of Fitness and Sports in Kanoya, Kanoya, Japan, he obtained his PhD in Physical Education at National Institute of Fitness and Sports in Kanoya in 2018. His research interests are in the area of muscle biomechanics and physiology, especially joint flexibility and muscle stretching. Funding Information: This study was supported by JSPS KAKENHI under Grant JP16H05918 (Grant-in-Aid for Young Scientists (A)) and JP17KK0174 (Fund for the Promotion of Joint International Research, Fostering Joint International Research). Publisher Copyright: {\textcopyright} 2019 The Author(s)",
year = "2020",
month = feb,
doi = "10.1016/j.jelekin.2019.102384",
language = "English",
volume = "50",
journal = "Journal of Electromyography and Kinesiology",
issn = "1050-6411",
publisher = "Elsevier Limited",
}