Department of Health Promotion, Maastricht University, School for Nutrition, Toxicology and Metabolism (NUTRIM), 6211 LK, The Netherlands.
Int J Environ Res Public Health. 2011 Sep;8(9):3747-58. doi: 10.3390/ijerph8093747. Epub 2011 Sep 19.
This cross-sectional study examined the relationship between Body Mass Index (BMI), total sitting time and total physical activity time in a generally overweight or obese population of type 2 diabetics or pre-diabetics willing to participate in a lifestyle intervention [n = 221, 55.1% male, mean age (SD) 62.0 (9.9), mean BMI (SD) 31.4 (5.0)]. In addition, we aimed to identify demographic and psychosocial associates of the motivation to become more physically active. The measurement instrument was a self-report questionnaire. Results showed that total sitting time was more closely related to BMI than total physical activity time. Subjects with a higher weight status were more sedentary, but they were also more motivated to be physically active. On the other hand, their self-efficacy to be physically active was lower than subjects with a lower weight status. Lifestyle interventions to decrease the risk of obesity and type 2 diabetes should aim not only at increasing total physical activity time, but also at reducing the total sitting time. Despite generally high levels of motivation among these obese participants, intervention designers and intermediaries should be aware of their low level of self-efficacy towards being physically active.
本横断面研究调查了体重指数（BMI）、总久坐时间和总体力活动时间与愿意参加生活方式干预的 2 型糖尿病或糖尿病前期超重或肥胖人群之间的关系[n=221，55.1%为男性，平均年龄（SD）62.0（9.9），平均 BMI（SD）31.4（5.0）]。此外，我们旨在确定与增加体力活动动机相关的人口统计学和心理社会因素。测量工具是一份自我报告问卷。结果表明，总久坐时间与 BMI 的关系比总体力活动时间更密切。体重状况较高的受试者更久坐，但他们也更有动力进行体力活动。另一方面，他们进行体力活动的自我效能感低于体重状况较低的受试者。减少肥胖和 2 型糖尿病风险的生活方式干预不仅应旨在增加总体力活动时间，还应减少总久坐时间。尽管这些肥胖参与者的动机普遍较高，但干预设计者和中间人应该意识到他们对进行体力活动的自我效能感较低。
