Effect of footwear on intramuscular EMG activity of plantar flexor muscles in walking
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Effect of footwear on intramuscular EMG activity of plantar flexor muscles in walking. / Péter, Annamária; Arndt, Anton; Hegyi, András; Finni, Taija; Andersson, Eva; Alkjær, Tine; Tarassova, Olga; Rönquist, Gustaf; Cronin, Neil.
I: Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology, Bind 55, 102474, 2020.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Effect of footwear on intramuscular EMG activity of plantar flexor muscles in walking
AU - Péter, Annamária
AU - Arndt, Anton
AU - Hegyi, András
AU - Finni, Taija
AU - Andersson, Eva
AU - Alkjær, Tine
AU - Tarassova, Olga
AU - Rönquist, Gustaf
AU - Cronin, Neil
N1 - Copyright © 2020 Elsevier Ltd. All rights reserved.
PY - 2020
Y1 - 2020
N2 - One of the purposes of footwear is to assist locomotion, but some footwear types seem to restrict natural foot motion, which may affect the contribution of ankle plantar flexor muscles to propulsion. This study examined the effects of different footwear conditions on the activity of ankle plantar flexors during walking. Ten healthy habitually shod individuals walked overground in shoes, barefoot and in flip-flops while fine-wire electromyography (EMG) activity was recorded from flexor hallucis longus (FHL), soleus (SOL), and medial and lateral gastrocnemius (MG and LG) muscles. EMG signals were peak-normalised and analysed in the stance phase using Statistical Parametric Mapping (SPM). We found highly individual EMG patterns. Although walking with shoes required higher muscle activity for propulsion than walking barefoot or with flip-flops in most participants, this did not result in statistically significant differences in EMG amplitude between footwear conditions in any muscle (p > 0.05). Time to peak activity showed the lowest coefficient of variation in shod walking (3.5, 7.0, 8.0 and 3.4 for FHL, SOL, MG and LG, respectively). Future studies should clarify the sources and consequences of individual EMG responses to different footwear.
AB - One of the purposes of footwear is to assist locomotion, but some footwear types seem to restrict natural foot motion, which may affect the contribution of ankle plantar flexor muscles to propulsion. This study examined the effects of different footwear conditions on the activity of ankle plantar flexors during walking. Ten healthy habitually shod individuals walked overground in shoes, barefoot and in flip-flops while fine-wire electromyography (EMG) activity was recorded from flexor hallucis longus (FHL), soleus (SOL), and medial and lateral gastrocnemius (MG and LG) muscles. EMG signals were peak-normalised and analysed in the stance phase using Statistical Parametric Mapping (SPM). We found highly individual EMG patterns. Although walking with shoes required higher muscle activity for propulsion than walking barefoot or with flip-flops in most participants, this did not result in statistically significant differences in EMG amplitude between footwear conditions in any muscle (p > 0.05). Time to peak activity showed the lowest coefficient of variation in shod walking (3.5, 7.0, 8.0 and 3.4 for FHL, SOL, MG and LG, respectively). Future studies should clarify the sources and consequences of individual EMG responses to different footwear.
U2 - 10.1016/j.jelekin.2020.102474
DO - 10.1016/j.jelekin.2020.102474
M3 - Journal article
C2 - 32979677
VL - 55
JO - Journal of Electromyography & Kinesiology
JF - Journal of Electromyography & Kinesiology
SN - 1050-6411
M1 - 102474
ER -
ID: 249386530