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Educating the Student Body
2005; Pate et al., 2006), coincident with increased sedentariness and obesity 
and a greater prevalence of metabolic syndrome in youth. Aerobic exercise 
has been shown to increase cardiorespiratory endurance by about 5-15 per-
cent in youth (Malina et al., 2004; HHS, 2008). The programs that produce 
this benefit involve continuous vigorous- or moderate-intensity aerobic 
activity of various types for 30-45 minutes per session at least 3 days per 
week over a period of at least 1-3 months (Baquet et al., 2002); improve-
ments are greater with more frequent exercise (Baquet et al., 2003).