The theory of reasoned action was used as the conceptual framework for analyzing the relationships among attitudes, subjective norms, and intentions to exercise regularly, maintain/attain recommended weight, and avoid highly stressful life situations. The sample (N = 377) consisted of adults between the ages of 18 and 66 living in two midwestern communities. Data were collected using a structured questionnaire designed according to guidelines developed by Ajzen and Fishbein (1980). The theory was supported in part by study results. Attitudes were useful in explaining intentions to engage in all three health behaviors studied. Subjective norms contributed only to the explanation of intentions to engage in regular exercise. Three factors, attitudes, subjective norms, and weight, affected intentions to engage in regular exercise, R = .364, p < .01. Attitudes, weight, and perceived health status were the principle determinants of intention to eat a diet consistent with weight control, R = .428, p < .001. Of the variables studied, only attitude was associated with intention to manage stress, R = .271, p < .01.
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