No association between hand and foot temperature responses during local cold stress and rewarming

作者：Norrbrand Lena; Kolegard Roger; Keramidas Michail E; Mekjavic Igor B; Eiken Ola

来源：European Journal of Applied Physiology, 2017, 117(6): 1141-1153.

DOI：10.1007/s00421-017-3601-5

• CIVD
• Finger
• Toe
• Water immersion
• Rewarming
• Local cold injury
• Cold tolerance

Purpose The purpose was to examine whether associations exist between temperature responses in the fingers vs. toes and hand vs. foot during local cold-water immersion and rewarming phases.
Methods Seventy healthy subjects (58 males, 12 females) immersed their right hand or right foot, respectively, in 8 degrees C water for 30 min (CWI phase), followed by a 15-min spontaneous rewarming (RW) in 25 degrees C air temperature.
Results Temperature was lower in the toes than the fingers during the baseline phase (27.8 +/- 3.0 vs. 33.9 +/- 2.5 degrees C, p < 0.001), parts of the CWI phase (min 20-30: 8.8 +/- 0.7 vs. 9.7 +/- 1.4 degrees C, p < 0.001), and during the RW phase (peak temperature: 22.5 +/- 5.1 vs. 32.7 +/- 3.6 degrees C, p < 0.001). Coldinduced vasodilatation (CIVD) was more common in the fingers than in the toes (p < 0.001). Within the first 10 min of CWI, 61% of the subjects exhibited a CIVD response in the fingers, while only 6% of the subjects had a CIVD response in the toes. There was a large variability of temperature responses both within and between extremities, and there was a weak correlation between finger-and toe temperature both during the CWI (r = 0.21, p = 0.08) and the RW phases (r = 0.26, p = 0.03).
Conclusions Results suggest that there is generally a lower temperature in the toes than the fingers after a short time of local cold exposure and that the thermal responses of the fingers/hands are not readily transferable to the toes/foot.

• 出版日期2017-6