Acute passive stretching in a previously fatigued muscle: Electrical and mechanical response during tetanic stimulation

Fabio Esposito; Emiliano Cè; Susanna Rampichini; Arsenio Veicsteinas

doi:10.1080/02640410903165093

Acute passive stretching in a previously fatigued muscle: Electrical and mechanical response during tetanic stimulation

Fabio Esposito, Emiliano Cè, Susanna Rampichini, Arsenio Veicsteinas

Fondazione Don Carlo Gnocchi Onlus

Research output: Contribution to journal › Article › peer-review

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
Pages (from-to)	1347-1357
Number of pages	11
Journal	Journal of Sports Sciences
Volume	27
Issue number	12
DOIs	https://doi.org/10.1080/02640410903165093
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

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10.1080/02640410903165093

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AU - Esposito, Fabio

AU - Cè, Emiliano

AU - Rampichini, Susanna

AU - Veicsteinas, Arsenio

PY - 2009/10

Y1 - 2009/10

N2 - 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

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Acute passive stretching in a previously fatigued muscle: Electrical and mechanical response during tetanic stimulation

Abstract

Keywords

ASJC Scopus subject areas

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