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Organized Sport and Physical Activity Promotion

Youth Physical Activity and Sedentary Behavior : Challenges and Solutions

Human Kinetics, 2008

Ebook

4

... 63, 341–348. R.C. Atchley (1989). A continuity theory of normal aging. Gerontologist, 29, 183–190. R.C. Atchley (1993). Continuity theory and the evolution of activity in later adulthood. In J. Kelly (Ed.), Activity and aging: Staying...