The relation between physical activity, fitness, and fatness in adolescents: A mediation analysis

Objectives To investigate the total, direct and mediated (by fatness) association of physical activity (PA) with fitness. Methods Body fat percentage (%Fat), maximal oxygen uptake (VO 2max ) and PA were measured directly in 18‐year‐olds ( n =202) and their association analyzed with a linear regression‐based mediation analysis after controlling for sex. Results The total association between PA and VO 2max was significant ( c =0.66, P <0.001)...