Jackson Erica M, Howton Amy
Department of Health, Physical Education, and Sport Science, Kennesaw State University, GA, USA.
J Am Coll Health. 2008 Sep-Oct;57(2):159-64. doi: 10.3200/JACH.57.2.159-164.
The researchers assessed the effectiveness of a pedometer intervention and differences in walking behaviors according to body mass index (BMI).
Two hundred ninety college students completed the intervention from January to February 2005.
Participants wore pedometers 5 days per week for 12 weeks and completed questionnaires assessing demographic information. The authors calculated daily step averages for weeks 1, 6, and 12. They then classified students as underweight (UW), normal weight (NW), or overweight/obese, by BMI. The authors analyzed data using repeated-measures analysis of variance.
The average number of daily steps increased from week 1 to week 6 (p < .001) and week 12 (p = .002). UW participants reported the fewest steps at each time point, but the difference was significant only when compared with NW participants (p = .03).
These results support the effectiveness of a pedometer intervention to increase walking in college students. Health benefits other than weight management should be emphasized to maximize the effects for all students.
研究人员评估了计步器干预的有效性以及根据体重指数（BMI）划分的步行行为差异。
290名大学生于2005年1月至2月完成了干预。
参与者每周佩戴计步器5天，持续12周，并完成评估人口统计学信息的问卷。作者计算了第1、6和12周的每日平均步数。然后，他们根据BMI将学生分为体重过轻（UW）、正常体重（NW）或超重/肥胖。作者使用重复测量方差分析来分析数据。
每日平均步数从第1周增加到第6周（p < .001）和第12周（p = .002）。UW参与者在每个时间点报告的步数最少，但仅与NW参与者相比时差异显著（p = .03）。
这些结果支持计步器干预对增加大学生步行量的有效性。应强调体重管理以外的健康益处，以最大限度地提高对所有学生的效果。
