TY  - JOUR
T1  - PHysical activity during youth sports practices
AU  - Leek D, Carlson JA, Cain KL, et al
Y1  - 2011/04/01
N1  - 10.1001/archpediatrics.2010.252
JO  - Archives of Pediatrics & Adolescent Medicine
SP  - 294
EP  - 299
VL  - 165
IS  - 4
N2  - 
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.

SN  - 1072-4710
M3  - doi: 10.1001/archpediatrics.2010.252
UR  - http://dx.doi.org/10.1001/archpediatrics.2010.252
ER  -