A century ago, people threw medicine balls and did calisthenics to stay fit. Then came the hula hoop, vibrating belts and aerobics. People sweated to the oldies with Richard Simmons
A growing understanding of the link between movement and health medicalxpress.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from medicalxpress.com Daily Mail and Mail on Sunday newspapers.
This Viewpoint discusses whether older self-report questionnaire studies and newer studies of fitness-tracking devices reach different conclusions about the dos