Skin temperature as a thermal controller of exercise intensity

Eur J Appl Physiol. 2011 Aug;111(8):1631-9. doi: 10.1007/s00421-010-1791-1. Epub 2011 Jan 1.

Abstract

This study examined the role of skin temperature on self-selected exercise intensity (i.e., power output). Eight well-trained, male cyclists completed two 60 min self-paced cycling bouts during which they completed as much work as possible. Using a liquid-perfused suit, skin temperature (T (Sk)) was changed during the two trials such that T (Sk) either started hot and was cooled (H to C) or started cold and was heated (C to H) throughout exercise. Pre-exercise core temperatures (T (C)) and heart rates (HR) were similar between trials, while T (Sk), thermal comfort and thermal sensation were higher in H to C. The change in T (Sk) was similar in magnitude during the two trials. Work completed was greatest in C to H, which was attributed to a higher initial power output. T (C) was similar between trials. HR was similar until 35 min had elapsed, after which it became lower in H to C. The perception of effort increased similarly between the two trials, while thermal comfort and thermal sensation generally reflected the changes observed in T (Sk). These results indicate that upon exercise commencement T (Sk) and the accompanying thermal perceptions are important inputs in the initial selection of exercise intensity.

Publication types

  • Clinical Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Body Temperature Regulation / physiology
  • Exercise / physiology*
  • Exercise Test
  • Exercise Tolerance / physiology
  • Heart Rate / physiology
  • Humans
  • Male
  • Perception / physiology
  • Physical Endurance / physiology*
  • Skin Temperature / physiology*
  • Temperature
  • Thermosensing / physiology*
  • Young Adult