The effects of local muscle temperature on force variability

Purpose Force variability is affected by environmental temperature, but whether the changes are from altered muscle temperature or proprioception are unclear. We tested how forearm muscle warming and cooling affected a force tracking task. Methods Twelve males and four females completed evoked, maxi...

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Veröffentlicht in:European journal of applied physiology 2019-05, Vol.119 (5), p.1225-1233
Hauptverfasser: Mallette, Matthew M., Green, Lara A., Hodges, Gary J., Fernley, Reno E., Gabriel, David A., Holmes, Michael W. R., Cheung, Stephen S.
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Sprache:eng
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Zusammenfassung:Purpose Force variability is affected by environmental temperature, but whether the changes are from altered muscle temperature or proprioception are unclear. We tested how forearm muscle warming and cooling affected a force tracking task. Methods Twelve males and four females completed evoked, maximal, and isometric wrist flexion contractions (0–30% maximal) during thermoneutral-, warm-, and cold-muscle conditions. Forearm muscle temperature was manipulated using neutral (~ 33 °C), hot (~ 44 °C), or cold (~ 13 °C) water circulated through a tube-lined sleeve. Evoked and voluntary contractions were performed before and after thermal manipulations. Results Thermal manipulations altered contractile properties as evident in the twitch half-relaxation time, rate of force development, and duration (all P  
ISSN:1439-6319
1439-6327
DOI:10.1007/s00421-019-04112-x