Stanforth Dixie, Steinhardt Mary, Mackert Michael, Stanforth Philip R, Gloria Christian T
The University of Texas at Austin, Kinesiology and Health Education, USA.
Am J Health Behav. 2011 May;35(3):257-68. doi: 10.5993/ajhb.35.3.1.
To replicate previous research that concluded exercise affects health via a placebo effect: simply telling workers with physically active jobs that their "work is exercise" improves health.
A convenience sample of university building service workers (n=53) learned "their work is exercise" or about job safety.
Groups demonstrated similar outcomes at 4 and 8 weeks for weight, percent fat, waist circumference, and behavioral measures. Both groups increased self-perception as "regular exercisers"; blood pressure was reduced only in the intervention group.
This research did not support the placebo effect. Although enticing, simply changing mind-set does not alter the relationship between exercise and health.
重复之前的研究，该研究得出结论：运动通过安慰剂效应影响健康，即仅仅告诉从事体力活动工作的员工“他们的工作就是锻炼”就能改善健康。
从大学建筑服务工人中选取了一个便利样本（n = 53），让他们了解“他们的工作就是锻炼”或有关工作安全的信息。
在4周和8周时，两组在体重、体脂百分比、腰围和行为指标方面表现出相似的结果。两组的自我认知都提升为“经常锻炼者”；只有干预组的血压有所降低。
本研究不支持安慰剂效应。虽然很诱人，但仅仅改变思维方式并不能改变运动与健康之间的关系。
