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This study investigated the neuromuscular fatigue following an elastic band exercise (EB) of the plantar flexors, compared to an intermittent phasic isometric exercise (ISO). Eleven young healthy males (age: 24.2 ± 3.7) took part in the study, consisting of one experimental session involving two 5-min fatiguing protocols separated by 20 min rest and performed randomly. Both exercises were performed at maximal motor output of the plantar flexor muscles, EMG being used as a feedback signal. Neuromuscular fatigue was assessed through changes in maximal voluntary contraction (MVC) and in evoked responses of soleus and gastrocnemii muscles to posterior tibial nerve stimulation (H-reflex, M-wave, V-wave). Both conditions induced significant decrease in MVC force, but to a greater extent after EB (−20.0 ± 5.1%, P < 0.001) than after ISO (−12.3 ± 4.6%, P = 0.037). While no effect was observed in M-wave amplitude after both exercises, EB resulted in greater decrease of normalized H-reflexes compared to isometric condition. Normalized V-wave significantly decreased only after EB. As a conclusion, the greater fatigability found after EB as compared to ISO was underlain by muscular as well as nervous factors. This higher impact was attributed to the dynamic nature of elastic band exercise as compared to isometric contractions.
| Язык оригинала | Английский |
|---|---|
| Страницы (с-по) | 113-120 |
| Число страниц | 8 |
| Журнал | Journal of Electromyography and Kinesiology |
| Том | 47 |
| DOI | |
| Состояние | Опубликовано - 1 авг 2019 |
Отпечаток
ASJC Scopus subject areas
- Neuroscience (miscellaneous)
- Biophysics
- Clinical Neurology
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Elastic band exercise induces greater neuromuscular fatigue than phasic isometric contractions. / Grosprêtre, Sidney; Gimenez, Philippe; Mourot, Laurent; Coratella, Giuseppe.
В: Journal of Electromyography and Kinesiology, Том 47, 01.08.2019, стр. 113-120.Результат исследований: Материалы для журнала › Статья
}
TY - JOUR
T1 - Elastic band exercise induces greater neuromuscular fatigue than phasic isometric contractions
AU - Grosprêtre, Sidney
AU - Gimenez, Philippe
AU - Mourot, Laurent
AU - Coratella, Giuseppe
PY - 2019/8/1
Y1 - 2019/8/1
N2 - This study investigated the neuromuscular fatigue following an elastic band exercise (EB) of the plantar flexors, compared to an intermittent phasic isometric exercise (ISO). Eleven young healthy males (age: 24.2 ± 3.7) took part in the study, consisting of one experimental session involving two 5-min fatiguing protocols separated by 20 min rest and performed randomly. Both exercises were performed at maximal motor output of the plantar flexor muscles, EMG being used as a feedback signal. Neuromuscular fatigue was assessed through changes in maximal voluntary contraction (MVC) and in evoked responses of soleus and gastrocnemii muscles to posterior tibial nerve stimulation (H-reflex, M-wave, V-wave). Both conditions induced significant decrease in MVC force, but to a greater extent after EB (−20.0 ± 5.1%, P < 0.001) than after ISO (−12.3 ± 4.6%, P = 0.037). While no effect was observed in M-wave amplitude after both exercises, EB resulted in greater decrease of normalized H-reflexes compared to isometric condition. Normalized V-wave significantly decreased only after EB. As a conclusion, the greater fatigability found after EB as compared to ISO was underlain by muscular as well as nervous factors. This higher impact was attributed to the dynamic nature of elastic band exercise as compared to isometric contractions.
AB - This study investigated the neuromuscular fatigue following an elastic band exercise (EB) of the plantar flexors, compared to an intermittent phasic isometric exercise (ISO). Eleven young healthy males (age: 24.2 ± 3.7) took part in the study, consisting of one experimental session involving two 5-min fatiguing protocols separated by 20 min rest and performed randomly. Both exercises were performed at maximal motor output of the plantar flexor muscles, EMG being used as a feedback signal. Neuromuscular fatigue was assessed through changes in maximal voluntary contraction (MVC) and in evoked responses of soleus and gastrocnemii muscles to posterior tibial nerve stimulation (H-reflex, M-wave, V-wave). Both conditions induced significant decrease in MVC force, but to a greater extent after EB (−20.0 ± 5.1%, P < 0.001) than after ISO (−12.3 ± 4.6%, P = 0.037). While no effect was observed in M-wave amplitude after both exercises, EB resulted in greater decrease of normalized H-reflexes compared to isometric condition. Normalized V-wave significantly decreased only after EB. As a conclusion, the greater fatigability found after EB as compared to ISO was underlain by muscular as well as nervous factors. This higher impact was attributed to the dynamic nature of elastic band exercise as compared to isometric contractions.
KW - Electromyography
KW - Force
KW - H-reflex
KW - M-wave
KW - Triceps surae
KW - V-wave
UR - http://www.scopus.com/inward/record.url?scp=85058214490&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85058214490&partnerID=8YFLogxK
U2 - 10.1016/j.jelekin.2018.12.003
DO - 10.1016/j.jelekin.2018.12.003
M3 - Article
C2 - 30554941
AN - SCOPUS:85058214490
VL - 47
SP - 113
EP - 120
JO - Journal of Electromyography and Kinesiology
JF - Journal of Electromyography and Kinesiology
SN - 1050-6411
ER -