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６名年龄３５±６岁男性受试者作为对照组，６名年龄３６±６岁练气功的男性受试者为练气功组。实验程序包括２ｄ的准备期，７ｄ的头低位－６°卧床（ＨＤＢＲ－６°）期和２ｄ的恢复期。每天收集２４ｈ全尿，测定尿皮质醇（ＵＣＯＲ）和尿醛固酮（ＵＡＬＤ）；每两天采集耳血一次，测定超氧化物歧化酶（ＳＯＤ）的活性。结果表明：卧床前两组间ＵＣＯＲ和ＳＯＤ没有显著差异，而ＨＤＢＲ－６°后对照组ＵＣＯＲ和ＳＯＤ明显增加（Ｐ＜０．０１），练功组仅有增加的趋势，对照组和练功组相比在ＨＤＢＲ－６°期间差别显著（ｐ＜０．０１）。这表明练气功组比对照组有较好的耐受ＨＤＢＲ－６°的应激能力，对保持机体内环境稳定具有重要的意义。
Six male subjects aged 35 ± 6 years served as control subjects. Six male subjects aged 36 ± 6 years of Qigong participated in the Qigong group. The experimental procedures included a 2-day preparation period, a 7-day head-down -6 ° HDR-6 ° period and a 2-day recovery period. The urinary cortisol (UCOR) and urinary aldosterone (UALD) were collected daily. Urinary blood was collected every two days and the activity of superoxide dismutase (SOD) was measured. The results showed that there was no significant difference in UCOR and SOD between the two groups before bedridden, while UCOR and SOD in HDBR-6 ° group were significantly increased (P <0.01) Significantly different from HDBR-6 ° (p <0.01). This indicates that Qigong group has better tolerance to HDBR-6 ° stress than the control group and is of great significance for maintaining the environmental stability in the body.