Physical Activity and Public Health: A Recommendation from the Centers for Disease Control and Prevention and the American College of Sports Medicine - Pate, R R; Pratt, M; Blair, S N; Haskell, W L; Macera, C A; Bouchard, C; Buchner, D; Ettinger, W; Heath, G W; King, A C; Kriska, A; Leon, A S; Marcus, B H; Morris, J; Paffenbarger, R S, Jr; Patrick, K; Pollock, M L; Rippe, J M; Sallis, J; Wilmore, J H (JAMA, 1995)