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Can J Appl Physiol. 2001 Oct;26(5):425-41.

Gender differences in temperature and vascular characteristics during exercise recovery.

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  • 1University of Guelph, Guelph, ON.


Temperature and vascular responses during exercise recovery were examined in men and women of similar age and fitness status (VO2max: 76 +/- 5 vs 73 +/- 5 mL O2 / kg Fat Free Mass x min). Forearm blood flow (venous occlusion plethysmography; FBF), rectal (Trectal) and forearm skin (Tskin) temperatures (degree C) were measured before and every 15 min up to 105 min (t105) during recovery from a 45-min run at 75% of VO2max. Results indicate Trectal decreased to pre-exercise levels within 25 min in men but reached and remained at values lower than baseline between 60 and 105 min of recovery in women. From 90 to 105 min of recovery, Tskin was lower in women than men (t105 : 29.0 +/- 1.3 vs 30.7 +/- 1.5; p <.05). Recovery FBF (mL/100mL x min) was higher in men than women from the start (6.2 +/- 1.9 vs 4.9 +/- 1.9) to the end of recovery (t105 = 1.7 +/- 0.6 vs 2.6 +/- 1.1) (p <.05). Heat flux calculated at the forearm was higher in women and increased throughout the last hour of recovery (p <.05). Further investigations are needed to examine mechanisms underlying failure of post-exercise core and skin temperatures in women to stabilize at pre-exercise levels.

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