Physical Activity During Youth Sports Practices | Adolescent Medicine | JAMA Pediatrics | JAMA Network
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April 4, 2011

Physical Activity During Youth Sports Practices

Author Affiliations

Author Affiliations: School of Medicine (Ms Leek), Joint Doctoral Program in Public Health (Mr Carlson), and Joint Doctoral Program in Clinical Psychology, San Diego State University/University of California, San Diego (Dr Rosenberg); Department of Psychology, San Diego State University, San Diego (Dr Sallis and Mss Cain and Henrichon); and Department of Family and Preventive Medicine, University of California, San Diego, La Jolla (Mr Patrick).

Arch Pediatr Adolesc Med. 2011;165(4):294-299. doi:10.1001/archpediatrics.2010.252

National guidelines state that children and adolescents should accumulate 60 minutes of moderate to vigorous physical activity (MVPA) each day.1 Based on objective physical activity measures, fewer than 50% of children and 10% of adolescents meet these guidelines.2 The American Academy of Pediatrics recommends youth sports as a means of obtaining physical activity as well as social benefits.3 In the United States, an estimated 44 million youth participate in organized sports.4 Youth sports participants include 66% boy players and 34% girl players, with greater sex equity at younger ages and an average length of time in an organized sport program of 5 years.4 Although intensity values in the moderate to vigorous range are obtained while playing common youth sports, it is not clear how much physical activity is provided by youth sports practices, as much of the time may be inactive, such as receiving verbal instruction and waiting for turns.