Plantar flexor neuromuscular adjustments following match-play football in hot and cool conditions.

Details

Serval ID
serval:BIB_E92CC6C2A4A7
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Plantar flexor neuromuscular adjustments following match-play football in hot and cool conditions.
Journal
Scandinavian Journal of Medicine and Science In Sports
Author(s)
Girard O., Nybo L., Mohr M., Racinais S.
ISSN
1600-0838 (Electronic)
ISSN-L
0905-7188
Publication state
Published
Issued date
2015
Peer-reviewed
Oui
Volume
25 Suppl 1
Pages
154-163
Language
english
Notes
Publication types: Journal Article Publication Status: ppublish
Abstract
We assessed neuromuscular fatigue and recovery of the plantar flexors after playing football with or without severe heat stress. Neuromuscular characteristics of the plantar flexors were assessed in 17 male players at baseline and ∼30 min, 24, and 48 h after two 90-min football matches in temperate (∼20 °C and 55% rH) and hot (∼43 °C and 20% rH) environments. Measurements included maximal voluntary strength, muscle activation, twitch contractile properties, and rate of torque development and soleus EMG (i.e., root mean square activity) rise from 0 to 30, -50, -100, and -200 ms during maximal isometric contractions for plantar flexors. Voluntary activation and peak twitch torque were equally reduced (-1.5% and -16.5%, respectively; P < 0.05) post-matches relative to baseline in both conditions, the latter persisting for at least 48 h, whereas strength losses (∼5%) were not significant. Absolute explosive force production declined (P < 0.05) 30 ms after contraction onset independently of condition, with no change at any other epochs. Globally, normalized rate of force development and soleus EMG activity rise values remained unchanged. In football, match-induced alterations in maximal and rapid torque production capacities of the plantar flexors are moderate and do not differ after competing in temperate and hot environments.
Pubmed
Web of science
Open Access
Yes
Create date
31/05/2015 9:28
Last modification date
20/08/2019 17:11
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