Thøgersen-Ntoumani C
School of Sport and Exercise Sciences, The University of Birmingham, Edgbaston, Birmingham, UK.
Scand J Med Sci Sports. 2009 Apr;19(2):286-96. doi: 10.1111/j.1600-0838.2007.00751.x. Epub 2008 Feb 17.
This study examined the usefulness of an ecological model in predicting stages of change for physical activity in Greek older adults. Three hundred and eighteen Greek older adults (n=168 males; n=150 females) completed questionnaires measuring a range of personal, psycho-social and environmental characteristics. The ecological model consisted of personal (gender, age, body mass index and perceived health), psycho-social (barrier self-efficacy and number of friends exercising) and environmental (the presence of sidewalks, heavy traffic, hills, unattended dogs and frequently observing others' exercising) predictors. The model explained 51.10% of the variance; more than that explained by any of the individual classes of predictors in isolation. Number of friends exercising was a particularly salient predictor. The findings may enhance understanding of some of the reasons for the high prevalence of pre-contemplation in this population. The information may have implications for the design of effective exercise interventions.
本研究探讨了一种生态模型在预测希腊老年人身体活动变化阶段方面的实用性。318名希腊老年人（n = 168名男性；n = 150名女性）完成了测量一系列个人、心理社会和环境特征的问卷调查。该生态模型由个人因素（性别、年龄、体重指数和自我感知健康状况）、心理社会因素（障碍自我效能感和锻炼的朋友数量）和环境因素（人行道的存在、交通拥堵、山丘、无人看管的狗以及经常观察他人锻炼的情况）作为预测指标。该模型解释了51.10%的方差；比任何单独一类预测指标所解释的方差都要多。锻炼的朋友数量是一个特别显著的预测指标。这些发现可能会加深对该人群中处于未考虑阶段的高患病率的一些原因的理解。这些信息可能对有效运动干预措施的设计具有启示意义。
