Relation between finger cold-induced vasodilation and rewarming speed after cold exposure

Relation between finger cold-induced vasodilation and rewarming speed after cold exposure

Purpose The risk for local cold injuries has been linked to poor cold-induced vasodilation (CIVD) during cold exposure and to poor rewarming after cold exposure. The purpose of this study is to establish the relation between CIVD and rewarming speed. Methods Twelve participants immersed one hand in...

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Bibliographic Details
Published in:European journal of applied physiology Vol. 119; no. 1; pp. 171 - 180
Main Authors: Kingma, C. F., Hofman, I. I., Daanen, H. A. M.
Format: Journal Article
Language:English
Published: Berlin/Heidelberg Springer Berlin Heidelberg 01-01-2019
Springer Nature B.V
Subjects:
Biomedical and Life Sciences
Biomedicine
Cold
Finger
Hand
Human Physiology
Occupational Medicine/Industrial Medicine
Original
Original Article
Skin
Sports Medicine
Temperature
Vasodilation
Resistance index of frostbite
CIVD
Finger cold water immersion
Cold injury risk
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Summary:Purpose The risk for local cold injuries has been linked to poor cold-induced vasodilation (CIVD) during cold exposure and to poor rewarming after cold exposure. The purpose of this study is to establish the relation between CIVD and rewarming speed. Methods Twelve participants immersed one hand in ice water for 30 min to evoke CIVD and the other hand in ice water for 10 min to investigate the rewarming profile. The ring, middle and index fingertip temperatures were monitored during hand immersion and the resistance index of frostbite (RIF) was calculated. RIF depends on minimal ( T min ) and mean ( T mean ) finger skin temperature and onset time. Rewarming was quantified using an infrared imaging system and the rewarming speed over 19 min was determined. Results T min (5.8 ± 3.0 °C) and T mean (10.4 ± 3.0 °C) caused non-distinctive contributions to the total RIF-scores so that onset time (12.7 ± 3.1 min) became the dominant factor. A significant negative correlation between RIF and rewarming speed was found ( r s = − 0.60, p  = 0.041). Conclusions The negative relation between RIF and rewarming speed may be explained by the common observation that onset time relates to the temperature of fingertip tissue, while T min , T mean and rewarming speed relates to body thermal status. The rewarming test is to be preferred over the CIVD test in terms of ease of use, but the predictive value of the rewarming test for cold injuries is limited, cannot replace the RIF since onset time of finger vasodilation is not included and should be further investigated.
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Communicated by Narihiko Kondo.
ISSN:1439-6319
1439-6327
DOI:10.1007/s00421-018-4012-y