Influence of body dimensions and sex on cold-induced vasodilation.

IF 2.8 3区医学 Q2 PHYSIOLOGY European Journal of Applied Physiology Pub Date : 2024-12-17 DOI:10.1007/s00421-024-05685-y

Rebecca S Weller, Jaro Govaerts, Rachel Akkermans, Douglas M Jones, Hein A Daanen

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Abstract

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_onset), minimum finger temperature (T_min), maximum finger temperature (T_max), mean finger temperature (T_mean), and CIVD_waves). A negative relationship was observed between T_max and SM ratio (r = - 0.39, p = 0.001) and T_mean 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_mean (Males: 8.0 ± 1.9 °C; Females: 8.9 ± 1.6 °C, p = 0.36), T_max (Males: 11.2 ± 3.1 °C; Females: 13.1 ± 1.2 °C, p = 0.16), T_min (Males: 5.9 ± 1.4 °C; Females: 5.0 ± 1.7 °C, p = 0.31), and t_onset (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.

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体型和性别对冷致血管舒张的影响。

冷诱导血管舒张（CIVD）是一种生理反应，其特征是在冷暴露5-10分钟内发生循环血管舒张，主要发生在手指和脚趾。本研究旨在确定身体尺寸，特别是体表质量比（SM）和性别在调节CIVD反应中的作用。39名参与者(平均±SD年龄：24±3岁；高度：174±28 cm；重量：75.3±15.2 kg；20名男性和19名女性)坐在温度中性的房间（22°C）中，将手指浸泡在冰水中30分钟。连续测量食指、中指、无名指和小指前垫的皮肤温度，以评估CIVD参数（发病时间（tonset）、最低手指温度（Tmin）、最高手指温度（Tmax）、平均手指温度（Tmean）和CIVDwaves）。Tmax与SM比值呈负相关（r = - 0.39, p = 0.001）， Tmean与SM比值呈负相关（r = - 0.32, p = 0.001），表明SM比值越小个体的CIVD反应越强。原始队列中具有相同人体测量学的7名男性和7名女性的亚组在任何CIVD参数之间没有差异：平均(男性：8.0±1.9°C；女性:8.9±1.6°C, p = 0.36),最高温度(男性:11.2±3.1°C;女性:13.1±1.2°C, p = 0.16), Tmin(男性:5.9±1.4°C;女性:5.0±1.7°C, p = 0.31), tonset(男性:12.0±4.4分钟;女性：9.6±3.6 min, p = 0.28)。因此，身体尺寸似乎在调节CIVD反应中起着至关重要的作用，而性别则没有。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

European Journal of Applied Physiology 医学-生理学

CiteScore

6.00

自引率

6.70%

发文量

227

审稿时长

3 months

期刊介绍： The European Journal of Applied Physiology (EJAP) aims to promote mechanistic advances in human integrative and translational physiology. Physiology is viewed broadly, having overlapping context with related disciplines such as biomechanics, biochemistry, endocrinology, ergonomics, immunology, motor control, and nutrition. EJAP welcomes studies dealing with physical exercise, training and performance. Studies addressing physiological mechanisms are preferred over descriptive studies. Papers dealing with animal models or pathophysiological conditions are not excluded from consideration, but must be clearly relevant to human physiology.