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. Author manuscript; available in PMC: 2013 Nov 6.
Published in final edited form as: Med Sci Sports Exerc. 2012 Jul;44(7):10.1249/MSS.0b013e31824749b2. doi: 10.1249/MSS.0b013e31824749b2

FIGURE 1.

FIGURE 1

Estimated marginal means (±SE) for calf (A) and thigh (B) muscle density (mg/cm3) for the lowest, average of the middle two, and highest fourths of physical activity in girls. Group differences were evaluated by ANCOVA. Model 1 = ethnicity, maturity offset, and muscle cross-sectional area. Model 2 = ethnicity, maturity offset, and total body lean mass. Bonferroni post hoc tests were used to adjust for multiple comparisons. a Significantly (P < 0.001) different from highest group. b Significantly (P < 0.01) different from lowest group.