Includes bibliographical references (p.171-197) and index
The nature of physical activity -- Physical activity across the lifespan -- Effect of sex -- Neurochemical models -- Perturbations of brain function -- Organized variability -- Genetic influences -- Physical activity play -- Activity regulation and the need for energy balance -- Mechanisms for biologic control -- Responses to activity interventions -- Understanding obesity: the biologic perspective -- Altering the biologic control of activity