Desharnais R, Jobin J, Côté C, Lévesque L, Godin G
Laboratoire des sciences de l'activité physique, Hôpital Laval, Québec, Canada.
Psychosom Med. 1993 Mar-Apr;55(2):149-54. doi: 10.1097/00006842-199303000-00003.
An experiment was conducted with 48 healthy young adults engaged in a supervised 10-week exercise program to determine whether a placebo effect is involved within the exercise-psychological enhancement connection. Based on an expectancy modification procedure, one-half of the subjects were led to believe that their program was specifically designed to improve psychological well-being (experimental condition) whereas no such intervention was made with the second half (control condition). Expectations for psychological benefits and aerobic capacity (VO2max) were measured before and after completion of the program. Self-esteem, as the indicator of psychological well-being, was measured on four specific occasions: at the beginning, after the fourth and seventh weeks, and upon completion of the training program. The results showed similar significant increases in fitness levels in both conditions. Moreover, self-esteem was significantly improved over time in the experimental but not in the control condition. These findings provide evidence to support the notion that exercise may enhance psychological well-being via a strong placebo effect. Implications of the results with regard to exercise prescription are discussed.
对48名健康的年轻成年人进行了一项实验，他们参与了一个为期10周的有监督的锻炼计划，以确定在锻炼与心理增强的联系中是否存在安慰剂效应。基于预期修正程序，一半的受试者被引导相信他们的计划是专门设计用来改善心理健康的（实验组），而另一半则没有进行这样的干预（对照组）。在计划完成前后测量了对心理益处和有氧能力（最大摄氧量）的预期。作为心理健康指标的自尊，在四个特定时间点进行了测量：开始时、第四周和第七周后以及训练计划完成时。结果显示，两种情况下的体能水平都有类似的显著提高。此外，实验组的自尊随时间显著提高，而对照组则没有。这些发现为支持锻炼可能通过强烈的安慰剂效应增强心理健康这一观点提供了证据。讨论了结果对运动处方的影响。
