| S G Trost Using objective physical activity measures with youth: how many days of monitoring are needed?S G Trost Department of Exercise, School of Public Health, University of South Carolina, Columbia 29208, USA Med Sci Sports Exerc 32:426-31. 2000 Correlates of physical activity behavior in rural youthR R Pate School of Public Health, University of South Carolina, USA Res Q Exerc Sport 68:241-8. 1997 Correlates of objectively measured physical activity in preadolescent youthS G Trost Department of Exercise Science, School of Public Health, University of South Carolina, Columbia 29208 5323, USA Am J Prev Med 17:120-6. 1999
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