Accuracy of self-reported exercise and the relationship with weight loss in overweight women
Accuracy of self-reported exercise and the relationship with weight loss in overweight women
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DOI：
10.1097/00005768-199804000-00024
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发表时间：
1998-04-01
期刊：
影响因子：
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通讯作者：
Rena, RR
中科院分区：
文献类型：
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作者：
Jakicic, JM;Polley, BA;Rena, RR
目的：本研究的目的是比较自我报告的运动与更客观的运动测量（即，Tri-Trac加速计），并评估运动量不足和过多的个人之间的体重减轻是否存在差异。研究方法：50名超重女性（BMI = 34.0 +/- 4.2 kg.m（-2））参与了行为体重控制计划。受试者被随机分配到长时间或短时间的运动条件下，两组都被要求在每周5天（-1）进行为期20周的运动。min.day长回合组在一个连续的会话中进行锻炼（例如，每天一个30分钟的时段），而短回合组将运动分成多个10分钟的时段（例如，每天三次，每次10分钟）。受试者在每日运动日志中记录他们的运动，并佩戴Tri-Trac加速度计一周，以验证自我报告的运动回合。结果如下：结果显示，大约45%的女性过度报告了她们所做的运动量，这在单回合和短回合组之间没有差异。在20周的计划中，过度报告运动量的女性体重减轻的程度明显低于报告运动量不足的女性（6.3 +/- 3.6 kg vs 9.4 +/- 5.2 kg）。结论：这项研究的结果表明，与参加该计划的其他人相比，过度报告运动量的超重女性在参加行为减肥计划时的体重减轻效果较差，而Tri-Trac加速计可能有助于识别不准确报告运动量的人。将个体分类为过度或不足报告者的能力可能有助于减肥治疗师，并导致更成功的肥胖治疗。
Purpose: The purpose of this study was to compare self-reported exercise to a more objective measurement of exercise (i.e., Tri-Trac Accelerometer) and to assess whether there is a difference in weight loss between individuals who under-and over-report their exercise. Methods: Fifty overweight females (BMI = 34.0 +/- 4.2 kg.m(-2)) who were participating in a behavioral weight control program were included in this study. Subjects were randomly assigned to a long-bout or a short-bout exercise condition, with both groups instructed to exercise 30 min.day(-1) on 5 d.wk(-1) for a period of 20 wk. The long-bout group was to exercise in one continuous session (e.g., one 30-min session per day), whereas the short-bout group was to divide the exercise into multiple 10-min sessions (e.g., three 10-min sessions per day). Subjects recorded their exercise in a daily exercise log and wore a Tri-Trac accelerometer for a I-wk period to validate self-reported exercise bouts. Results: Results showed that approximately 45% of the women over-reported the amount of exercise that they performed, and this did not differ between the lone-bout and short-bout groups. Women who over-reported their exercise had significantly poorer weight loss across the 20-wk program than women who under-reported their exercise (6.3 +/- 3.6 kg vs 9.4 +/- 5.2 kg). Conclusions: The results of this study suggest that overweight women who over-report their exercise will have poorer weight loss while enrolled in a behavioral weight loss program compared with others enrolled in the program, and the Tri-Trac Accelerometer may be useful in identifying individuals who inaccurately report the amount of their exercise. The ability to classify individuals as either over-or under-reporters of their exercise may be helpful to weight loss therapists and lead to more successful treatment for obesity.