Abstract
The aim of this study was to assess the effects of acute passive stretching on the electrical and mechanical response of a previously fatigued muscle. Eleven participants underwent maximal tetanic stimulations (50 Hz) of the medial gastrocnemius, before and after a fatiguing protocol and after a bout of passive stretching of the fatigued muscle. During contraction, surface electromyography (EMG), mechanomyography (MMG), and force were recorded. The following parameters were calculated: (1) the EMG root mean square (RMS), mean frequency, and fibre conduction velocity; (2) MMGpeak-to-peak and RMS; (3) the peak force, contraction time, half-relaxation time, peak rate of force development (dF/ dt) and its acceleration (d2F/dt2). Fatigue reduced peak force by 18% (P
Original language | English |
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Pages (from-to) | 1347-1357 |
Number of pages | 11 |
Journal | Journal of Sports Sciences |
Volume | 27 |
Issue number | 12 |
DOIs | |
Publication status | Published - Oct 2009 |
Keywords
- Electrical stimulation
- Electromyography
- Mechanomyography
- Muscle stiffness
ASJC Scopus subject areas
- Orthopedics and Sports Medicine
- Physical Therapy, Sports Therapy and Rehabilitation