The Health Protection/Health Promotion Model is reviewed and reformulated. The original model had the following two shortcomings: a) it was largely designed for acute illness and therefore did not adequately reflect the needs of clients experiencing chronic illnesses and b) it did not consider the approaches brought on by the positive psychology movement. Thus, the reformulated Health Protection/Health Promotion Model has been altered in two substantive ways. First, it attempts to better reflect the needs of clients with chronic illnesses; second, it has added positive psychology to extend the theoretical foundation of the initial Health Protection/Health Promotion Model.
Empirical evidence has shown a positive relationship between physical training and selected mental health variables. In nonclinical studies the most significant effects of physical exercise have been on self-concept and body image. Two affective variables, depression and anxiety, also seem to be influenced by physical activity but to a lesser degree in this population than with clinical populations. Certain clinical populations appear to benefit cognitively and socially from exercise even though the activity may not be aerobically stressful. Theories that attempt to explain the relationship between fitness and mental health are discussed.
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