Department of Physiological Nursing, University of California San Francisco, 2 Koret Way BOX0610 San Francisco, CA 94143, USA.
Prev Med. 2010 Sep-Oct;51(3-4):287-9. doi: 10.1016/j.ypmed.2010.06.006. Epub 2010 Jun 17.
This uncontrolled pilot study assessed changes in pedometer-measured step counts and self-reported physical activity during a 3-week mobile phone-based intervention. We also explored whether age, BMI, and psychosocial factors were associated with changes in step counts.
Forty-one sedentary adult women in San Francisco, California were asked to report their pedometer steps using a study-supplied mobile phone from June to September 2008. In the second and third weeks, daily prompts delivered by the mobile phone encouraged participants to increase steps by 20% from the previous week.
Mean age was 48 years. Average daily total steps increased by approximately 800 or 15% over three weeks (p<0.001). Lower BMI, no antidepressant use, and lower self-reported health status were associated with higher step counts at baseline. Improvements in self-reported will-power were associated with increases in step counts (p<0.001). Neither age (p=0.55) nor BMI (p=0.13) was significantly associated with changes in activity over the 3 weeks.
The intervention appeared to motivate sedentary women to increase their physical activity. A randomized controlled clinical trial is warranted and feasible.
本非对照性初步研究旨在评估基于手机的干预措施实施 3 周期间计步器测量的步数和自我报告的身体活动的变化。我们还探讨了年龄、BMI 和心理社会因素是否与步数的变化相关。
2008 年 6 月至 9 月，加利福尼亚州旧金山的 41 名久坐成年女性被要求使用研究提供的手机报告计步器步数。在第二和第三周，手机每天发送提示信息，鼓励参与者将前一周的步数增加 20%。
平均年龄为 48 岁。平均每天总步数在 3 周内增加了约 800 步或 15%（p<0.001）。较低的 BMI、不使用抗抑郁药和较低的自我报告健康状况与基线时较高的步数相关。自我报告的意志力增强与步数增加相关（p<0.001）。年龄（p=0.55）和 BMI（p=0.13）均与 3 周内活动量的变化无显著相关性。
该干预措施似乎促使久坐不动的女性增加了身体活动。需要并可行进行随机对照临床试验。
