冬季における衣服と血圧

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本研究は2つの実験によって構成されており, 実験Iでは日常時の衣服の組み合わせ, 実験IIでは運動前後の安静時における防寒用衣服の着用である。実験Iでは収縮期血圧は, 一般的な冬季の衣服の組み合わせである条件Aが109.7±3.0mmHgとなり, 半袖シャツとランニングパンツの条件Dが118.4±3.0mmHgとなり両条件間に有意な違いが認められた (p<0.05)。薄着の条件Dに比べて気道及び四肢末梢部を衣服小物で覆った条件Gでは, 111.2±3.1mmHgを示し, 条件Dに比べて有意に低値を示し (p<0.05), 薄着でも気道や末梢部を衣服小物で覆うことで血圧の上昇を防げることが示唆された。実験IIでは, 運動の前後にベンチコートを着用した群が着用しない群に比べて, 実験期間中, 血圧と脈拍は低値を示した。運動前後の安静時に防寒用衣服を着用することは生体への生理的負担を軽減することから望ましい思われる。

This study examined the effects of difference of clothing on blood pressure at winter season. The study was divided into experiment I and experiment II. Experiment I was away of combining clothing at the time daily. Experiment II was clothing which was cold protective at the time for rest of exercise. Six female students and 8 male students in good health, each participated in Experiment I and Experiment II, respectively. Systolic blood pressure under condition A which was the combination of clothing in the general winter was 109.7±3.0 mmHg. On the other hand, systolic blood pressure under condition D which was half sleeved shirt and shorts was 118.4±3.0 mmHg. Systolic blood pressure under condition A was higher than that under condition D, showing statistically significant difference (p<0.05). Moreover, in the condition G to have covered the respiratory tract and a limb end part, were shown 111.2±3.1mmHg. Between condition D and condition G, a significant difference was admitted (p<0.05). At experiment II, when the group to have worn a bench court during the experiment period compared with the group not to wear a bench court, the worn group was lower about blood pressure and heart rate. In this study, these results suggest that the one which wore the cold protective colthing was better for the body at the time for rest of exercise.

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