Weller Rebecca S, Govaerts Jaro, Akkermans Rachel, Jones Douglas M, Daanen Hein A
Department of Human Movement Sciences, Vrije Universiteit Amsterdam, Amsterdam, The Netherlands.
San Diego State University, 5500 Campanile Drive, San Diego, CA, USA.
Eur J Appl Physiol. 2025 May;125(5):1385-1393. doi: 10.1007/s00421-024-05685-y. Epub 2024 Dec 17.
Cold-induced vasodilation (CIVD) is a physiological response characterized by cyclic vasodilation occurring within 5-10 min of cold exposure, predominantly in the fingers and toes. This study aimed to determine the roles of body dimensions, specifically surface-to-mass (SM) ratio and sex in modulating CIVD responses. Thirty-nine participants (mean ± SD age: 24 ± 3 yr; height: 174 ± 28 cm; weight: 75.3 ± 15.2 kg; 20 males & 19 females) completed a 30-min immersion of the digits in ice water while sitting in a thermoneutral room (22 °C). Skin temperature was measured continuously on the anterior pads of the index, middle, ring, and little finger to assess CIVD parameters (onset time (t), minimum finger temperature (T), maximum finger temperature (T), mean finger temperature (T), and CIVD). A negative relationship was observed between T and SM ratio (r = - 0.39, p = 0.001) and T and SM ratio (r = - 0.32, p = 0.001), indicating that individuals with smaller SM ratios exhibited enhanced CIVD responses. A subgroup of 7 males and 7 females with identical anthropometrics from the original cohort showed no differences between any CIVD parameter: T (Males: 8.0 ± 1.9 °C; Females: 8.9 ± 1.6 °C, p = 0.36), T (Males: 11.2 ± 3.1 °C; Females: 13.1 ± 1.2 °C, p = 0.16), T (Males: 5.9 ± 1.4 °C; Females: 5.0 ± 1.7 °C, p = 0.31), and t (Males: 12.0 ± 4.4 min; Females: 9.6 ± 3.6 min, p = 0.28). Therefore, body dimensions seem to play a crucial role in modulating CIVD responses, whereas sex does not.
冷诱导血管舒张（CIVD）是一种生理反应，其特征是在冷暴露后5 - 10分钟内出现周期性血管舒张，主要发生在手指和脚趾。本研究旨在确定身体尺寸，特别是表面积与质量（SM）比和性别在调节CIVD反应中的作用。39名参与者（平均±标准差年龄：24±3岁；身高：174±28厘米；体重：75.3±15.2千克；20名男性和19名女性）坐在温度适中的房间（22°C）里，将手指浸入冰水中30分钟。在食指、中指、无名指和小指的前指腹连续测量皮肤温度，以评估CIVD参数（起始时间（t）、最低手指温度（T）、最高手指温度（T）、平均手指温度（T）和CIVD）。观察到T与SM比之间呈负相关（r = - 0.39，p = 0.001）以及T与SM比之间呈负相关（r = - 0.32，p = 0.001），这表明SM比小的个体表现出增强的CIVD反应。从原始队列中选取7名男性和7名具有相同人体测量学特征的女性组成一个亚组，结果显示任何CIVD参数之间均无差异：T（男性：8.0±1.9°C；女性：8.9±1.6°C，p = 0.36）、T（男性：11.2±3.1°C；女性：13.1±1.2°C，p = 0.16）、T（男性：5.9±1.4°C；女性：5.0±1.7°C，p = 0.31）和t（男性：12.0±4.4分钟；女性：9.6±3.6分钟，p = 0.28）。因此，身体尺寸似乎在调节CIVD反应中起关键作用，而性别则不然。
