Le Masurier Guy C, Sidman Cara L, Corbin Charles B
Department of Exercise and Wellness, Arizona State University, Mesa 85212, USA.
Res Q Exerc Sport. 2003 Dec;74(4):389-94. doi: 10.1080/02701367.2003.10609109.
The purpose of this study was to determine whether taking 10,000 steps in a day is equivalent to meeting the current minimum physical activity guidelines of accumulating at least 30 min of moderate physical activity (IMPA). Fifty-nine women ages 20-65 years wore a pedometer and accelerometer concurrently on their right hip for 1 day. There were no differences in the age, body mass index, or the amount of time the pedometers and accelerometers were worn between the 10K+ and the < 10K groups. The 10K+ group accumulated significantly more steps and minutes of MPA than the < 10K group (M = 13,084 steps, SD = 2,603 vs. M = 7,518 steps, SD = 1,956; and M = 62.1 min, SD = 27.7 vs. M = 38.8 min, SD = 18.9; p < .05). A 2 x 2 chi-square analysis demonstrated no difference between the proportions of 10K and < 10K participants who met the step goal, when all minutes of MPA accumulated throughout the day were considered (chi2 = 1.8, df = 1, p = .175). When only continuous bouts of MPA lasting > 5 min and > 10 min were considered, a significantly greater proportion of 10K participants met the current physical activity guidelines than the < 10K participants (chi2 = 11.5, df = 1, p = .001, and chi2 = 5.9, df = 1, p = .015, respectively). Our finding, suggest that individuals who accumulate 10,000 steps/day are more likely to meet the current physical activity guidelines by engaging in the length of bouts promoted by the Centers for Disease Control and Prevention and the American College of Sports Medicine (Pate et al., 1995) and the US Surgeon General (U.S. Department of Health and Human Services, 1996). However, the data also reveal that accumulating 10,000 steps/day does not guarantee meeting the guidelines in the bout lengths documented to confer the health benefits of physical activity.
本研究的目的是确定一天走10000步是否等同于达到当前的最低身体活动指南，即累积至少30分钟的中等强度身体活动（IMPA）。59名年龄在20 - 65岁的女性在右髋部同时佩戴计步器和加速度计1天。10000步以上组和10000步以下组在年龄、体重指数以及计步器和加速度计佩戴时间方面没有差异。10000步以上组累积的步数和中等强度身体活动的分钟数显著多于10000步以下组（M = 13084步，SD = 2603 vs. M = 7518步，SD = 1956；M = 62.1分钟，SD = 27.7 vs. M = 38.8分钟，SD = 18.9；p <.05）。当考虑全天累积的所有中等强度身体活动分钟数时，2×2卡方分析表明，达到步数目标的10000步以上和10000步以下参与者的比例没有差异（卡方 = 1.8，自由度 = 1，p =.175）。当仅考虑持续超过5分钟和超过10分钟的中等强度身体活动连续时间段时，达到当前身体活动指南的10000步以上参与者的比例显著高于10000步以下参与者（卡方分别为 = 11.5，自由度 = 1，p =.001，以及卡方 = 5.9，自由度 = 1，p =.015）。我们的研究结果表明，每天累积10000步的个体更有可能通过参与疾病控制与预防中心和美国运动医学学院（Pate等人，1995年）以及美国卫生局局长（美国卫生与公众服务部，1996年）所倡导的时间段长度来达到当前的身体活动指南。然而，数据也显示，每天累积10000步并不能保证在已证明能带来身体活动健康益处的时间段长度内达到指南要求。
