Linde J A, Jeffery R W, Levy R L, Pronk N P, Boyle R G
University of Minnesota, Twin Cities Campus, Minneapolis, MN 55454, USA.
Int J Obes (Lond). 2005 Aug;29(8):1002-5. doi: 10.1038/sj.ijo.0802990.
Participants in weight loss programs typically set unrealistically high weight loss goals that some believe are detrimental to success. This study examined outcomes associated with goal and ideal body mass index (BMI). Participants (N=1801) were enrolled in a weight loss trial comprised of low-intensity mail or telephone interventions vs usual care. Goal and ideal weight losses were assessed by asking participants how many pounds they expect to lose in the program (goal) and how much they would like to weigh (ideal). Goal and ideal weight losses were unrealistically high (men: -16 and -19%, women: -21 and -27%). For women, less realistic goals were associated with greater weight loss at 24 months. Goals were not associated with participation or weight loss for men. Results are more supportive of the idea that higher goals motivate women to lose weight than of the hypothesis that high goals undermine effort.
减肥项目的参与者通常会设定不切实际的高减肥目标，有些人认为这些目标不利于成功。本研究考察了与目标及理想体重指数（BMI）相关的结果。参与者（N = 1801）参加了一项减肥试验，该试验包括低强度的邮件或电话干预与常规护理。通过询问参与者他们期望在项目中减掉多少磅（目标）以及他们希望达到的体重是多少（理想）来评估目标减肥量和理想减肥量。目标减肥量和理想减肥量都不切实际地高（男性：-16%和-19%，女性：-21%和-27%）。对于女性来说，不太现实的目标与24个月时更大的体重减轻有关。目标与男性的参与度或体重减轻无关。结果更支持较高目标能激励女性减肥这一观点，而非高目标会削弱努力这一假设。
