Journal article
Plantar flexor neuromuscular adjustments following match-play football in hot and cool conditions
Scandinavian Journal of Medicine & Science in Sports, Vol.25, pp.154-163
2015
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.
Details
- Title
- Plantar flexor neuromuscular adjustments following match-play football in hot and cool conditions
- Authors/Creators
- O. Girard (Author/Creator)L. Nybo (Author/Creator)M. Mohr (Author/Creator)S. Racinais (Author/Creator)
- Publication Details
- Scandinavian Journal of Medicine & Science in Sports, Vol.25, pp.154-163
- Publisher
- Wiley
- Identifiers
- 991005542144907891
- Copyright
- © 2015 John Wiley & Sons A/S.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
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