Nara Medical University School of Medicine, Community Health and Epidemiology, Kashihara city, Japan.
Int J Sports Med. 2010 Apr;31(4):277-82. doi: 10.1055/s-0029-1234057. Epub 2010 Feb 17.
We aimed to investigate the effects of increasing the number of steps each day on physical fitness, and the change in physical fitness according to the angiotensin-converting enzyme (ACE) genotype. A total of 174 participants were randomly assigned to two groups. Subjects in group A were instructed for 24-week trial to increase the number of steps walked each day, while subjects in group B were instructed to engage in brisk walking, at a target heart rate, for 20 min or more a day on two or more days a week. The values of the 3-min shuttle stamina walk test (SSWT) and the 30-s chair-stand test (CS-30) significantly increased, but no differences in increase were found between the groups. A significant relationship was found between the percentage increase in SSWT values and the increase in the number of steps walked by 1 500 steps or more per day over their baseline values. Our results suggest that increasing the number of steps walked daily improves physical fitness. No significant relationships were observed between the change in physical fitness and ACE genotypes.
我们旨在研究每天增加步数对身体健康的影响，以及根据血管紧张素转换酶 (ACE) 基因型的变化对身体健康的影响。共有 174 名参与者被随机分为两组。A 组的受试者被要求进行 24 周的试验，以增加每天行走的步数，而 B 组的受试者则被要求每天以目标心率快步走 20 分钟或更长时间，每周至少两天。3 分钟穿梭耐力步行测试（SSWT）和 30 秒椅子站立测试（CS-30）的值显著增加，但两组之间的增加没有差异。SSWT 值的百分比增加与每天比基线值多走 1500 步或更多步之间存在显著关系。我们的结果表明，每天增加步数可以改善身体健康。在身体健康的变化与 ACE 基因型之间未观察到显著关系。
