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标题：Exercise Can Alter Cortisol Responses in Obese Subjects
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作者：Brynjar Foss ; Brynjar Foss ; Lars Rune Sæterdal 等
期刊名称：Journal of exercise physiology online
印刷版ISSN：1097-9751
出版年度：2014
卷号：17
期号：1
页码：67-77
语种：English
出版社：American Society of Exercise Physiologists
摘要：Foss B, Sæterdal LR, Nordgård O, Dyrstad SM. Exercise Can Alter Cortisol Responses in Obese Subjects. JEPonline 2014;17(1):67-77. The aim of this study was to examine the influence of a 22-wk lifestyle intervention program on the cortisol response in 35 inactive, obese subjects with a body mass index >35. The subjects were randomized into a Test Group and a Control Group. The intervention program consisted of physical activity supplemented with diet and cognitive therapy seminars. Saliva was collected 3 times a day, before and after the intervention program, and 6 months later. The morning awakening and peak cortisol levels (30 min after awakening) were 67% higher in the Test Group (n = 12) than the Control Group (n = 10; P<0.05). Whereas 6 months after the intervention the cortisol awakening levels had decreased by 33% in the Test Group, the peak level was 125% higher compared with the Control Group (P<0.05). The morning cortisol increase was 90% higher 6 months after the intervention compared with the post-intervention samples in the Test Group (P<0.05). The results indicate that the 22-wk lifestyle intervention program altered cortisol levels in the inactive, obese subjects. The increased cortisol reaction may hinder efforts at weight reduction and may explain why losing weight through physical activity is difficult for obese people.
关键词：Obesity;Cortisol;Exercise;Lifestyle