Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/16170
Title: Effects of an acute bout of dynamic stretching on biomechanical properties of the gastrocnemius muscle determined by Shear Wave Elastography
Authors: Mohagheghi, AA
Pamboris, GM
Noorkoiv, M
Baltzopoulos, V
Gokalp, H
Marzilger, R
Issue Date: 2018
Publisher: PLoS ONE
Citation: PLoS ONE, 2018
Abstract: Aims: The aim of this study was to examine the acute effects of dynamic stretching (DS) exercise on passive ankle range of motion (RoM), resting localized muscle stiffness, as measured by shear wave speed (SWS) of medial gastrocnemius muscle, fascicle strain, and thickness. Methods/Results: Twenty-three participants performed a DS protocol. Before and after stretching, SWS was measured in the belly of the resting medial gastrocnemius muscle (MGM) using shear wave elastography. DS produced small improvements in maximum dorsiflexion (+1.5° ±1.5; mean difference ±90% confidence limits) and maximum plantarflexion (+2.3° ±1.8), a small decrease in fascicle strain (-2.6% ±4.4) and a small increase in SWS at neutral resting angle (+11.4% ±1.5). There was also a small increase in muscle thickness (+4.1mm ±2.0). Conclusions: Through the use of elastography, this is the first study to suggest that DS increases muscle stiffness, decreases fascicle strain and increases muscle thickness as a result of improved RoM. These results can be beneficial to coaches, exercise and clinical scientists when choosing DS as a muscle conditioning or rehabilitation intervention.
URI: http://bura.brunel.ac.uk/handle/2438/16170
ISSN: 1932-6203
Appears in Collections:Dept of Life Sciences Research Papers

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