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Article

The Effects of Inter-Set Recovery Time on Explosive Power, Electromyography Activity, and Tissue Oxygenation during Plyometric Training

1
School of Biomedical Engineering, Dalian University of Technology, Dalian 116024, China
2
Faculty of Physical Education, Dalian University of Technology, Dalian 116024, China
*
Authors to whom correspondence should be addressed.
Academic Editor: Pierre J.M. Cluitmans
Sensors 2021, 21(9), 3015; https://doi.org/10.3390/s21093015
Received: 29 March 2021 / Revised: 15 April 2021 / Accepted: 20 April 2021 / Published: 25 April 2021
(This article belongs to the Special Issue Neurophysiological Monitoring)
Performing continuous sets to failure is fatiguing during the plyometric training. Cluster sets have been used to redistribute total rest time to create short frequent sets so that muscle fatigue can be avoided. The purpose of the study was to investigate the effects of inter-set recovery time on lower extremity explosive power, neuromuscular activity, and tissue oxygenation during plyometric exercise and recovery. An integrated assessment of explosive power, muscle electrical activity, and tissue oxygenation was adopted in the present study to help understand local muscle metabolism and fatigue during plyometric exercise and recovery. Ten university male basketball players participated in this study. Subjects performed 4 groups of exercise, each group comprised of 3 sets of jumps: 1, 2, 3, or 5 min. Surface electromyography (sEMG) signals were collected from 9 lower extremity muscles; near-infrared spectroscopy (NIRS) was recorded on vastus lateralis; mechanical data during plyometric exercise were collected from a force plate. No significant differences among sets and among groups were found regarding explosive power, jump height, EMG intensity, mean power frequency, the rate of tissue saturation index, and HbO2 changes between baseline and recovery. The current study has shown no muscular fatigue induced during the 4 groups of exercise. The results of this study may help inform recommendations concerning the recovery time during plyometric exercises at low loads (30% 1 RM). View Full-Text
Keywords: wavelet analysis; near-infrared spectroscopy; plyometric; tissue saturation index; jump height wavelet analysis; near-infrared spectroscopy; plyometric; tissue saturation index; jump height
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MDPI and ACS Style

Guan, S.; Lin, N.; Yin, Y.; Liu, H.; Liu, L.; Qi, L. The Effects of Inter-Set Recovery Time on Explosive Power, Electromyography Activity, and Tissue Oxygenation during Plyometric Training. Sensors 2021, 21, 3015. https://doi.org/10.3390/s21093015

AMA Style

Guan S, Lin N, Yin Y, Liu H, Liu L, Qi L. The Effects of Inter-Set Recovery Time on Explosive Power, Electromyography Activity, and Tissue Oxygenation during Plyometric Training. Sensors. 2021; 21(9):3015. https://doi.org/10.3390/s21093015

Chicago/Turabian Style

Guan, Shuo, Nan Lin, Yue Yin, Haibin Liu, Liqing Liu, and Liping Qi. 2021. "The Effects of Inter-Set Recovery Time on Explosive Power, Electromyography Activity, and Tissue Oxygenation during Plyometric Training" Sensors 21, no. 9: 3015. https://doi.org/10.3390/s21093015

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