Abstract
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.
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