TY - GEN AU - Goodman,R A AU - Baker,D B AU - Powell,K E AU - Sayre,J W TI - Estimating the prevalence of leisure-time physical activity SN - 0022-4707 PY - 1989///0413 KW - Adolescent KW - Adult KW - Aged KW - Energy Metabolism KW - Exercise KW - Humans KW - Leisure Activities KW - Middle Aged KW - Time Factors N1 - Publication Type: Journal Article ER -