孟加拉国人和日本人的冷致血管舒张比较。

IF 3.3 4区 医学 Q1 PHYSIOLOGY
Aklima Khatun, Sakura Ashikaga, Hisaho Nagano, Md Abdul Hasib, Akihiro Taimura
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引用次数: 7

摘要

背景:人体体温调节系统对环境温度的变化作出反应,因此人类可以自我适应广泛的气候。热带地区和温带地区的人耐寒性不同。本研究比较了孟加拉国人(热带)和日本人(温带)对局部冷暴露对冷诱导血管舒张(CIVD)的耐受性。方法:8名孟加拉男性(现居日本)和14名日本男性(现居日本)参与了本研究。他们都是久坐不动的普通大学生。孟加拉籍受试者在日本停留时间为2.50±2.52年。将受试者的左手中指浸入5°C的水中20分钟,以评估其CIVD反应(实验在25°C、50% RH的人工气候室内进行)。结果:与孟加拉(BD)组比较,日本(JP)组有一定差异。BD组和JP组浸泡前温度(TBI)分别为33.04±1.98°C和34.62±0.94°C,温升时间(TTR)分别为5.35±0.82和3.72±0.68 min,差异有统计学意义。BD组和JP组的感觉上升时间(TSR)分别为8.69±6.49 min和3.26±0.97 min,差异有统计学意义(P)。结论:日本组(温带)对局部冷暴露的耐受性优于孟加拉组(热带)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Cold-induced vasodilation comparison between Bangladeshi and Japanese natives.

Cold-induced vasodilation comparison between Bangladeshi and Japanese natives.

Cold-induced vasodilation comparison between Bangladeshi and Japanese natives.

Cold-induced vasodilation comparison between Bangladeshi and Japanese natives.

Background: The human thermoregulation system responds to changes in environmental temperature, so humans can self-adapt to a wide range of climates. People from tropical and temperate areas have different cold tolerance. This study compared the tolerance of Bangladeshi (tropical) and Japanese (temperate) people to local cold exposure on cold-induced vasodilation (CIVD).

Methods: Eight Bangladeshi males (now residing in Japan) and 14 Japanese males (residing in Japan) participated in this study. All are sedentary, regular university students. The Bangladeshi subject's duration of stay in Japan was 2.50 ± 2.52 years. The subject's left hand middle finger was immersed in 5 °C water for 20 min to assess their CIVD response (the experiment was conducted in an artificial climate chamber controlled at 25 °C with 50% RH).

Results: Compared with the Bangladeshi (BD) group, the Japanese (JP) group displayed some differences. There were significant differences between the BD and JP groups in temperature before immersion (TBI), which were 33.04 ± 1.98 and 34.62 ± 0.94 °C, and time of temperature rise (TTR), which were 5.35 ± 0.82 and 3.72 ± 0.68 min, respectively. There was also a significant difference in the time of sensation rise (TSR) of 8.69 ± 6.49 and 3.26 ± 0.97 min between the BD and JP groups, respectively (P < 0.05). Moreover, the JP group showed a quick TTR after finishing immersion.

Conclusions: The Japanese group (temperate) has a higher tolerance to local cold exposure than the Bangladeshi group (tropical) evaluated by the CIVD test.

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来源期刊
自引率
6.50%
发文量
39
期刊介绍: Journal of Physiological Anthropology (JPA) is an open access, peer-reviewed journal that publishes research on the physiological functions of modern mankind, with an emphasis on the physical and bio-cultural effects on human adaptability to the current environment. The objective of JPA is to evaluate physiological adaptations to modern living environments, and to publish research from different scientific fields concerned with environmental impact on human life. Topic areas include, but are not limited to: environmental physiology bio-cultural environment living environment epigenetic adaptation development and growth age and sex differences nutrition and morphology physical fitness and health Journal of Physiological Anthropology is the official journal of the Japan Society of Physiological Anthropology.
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