Fig. 2

Combined cross-sectional area of different fibre types of the high oxidative (a) and low oxidative (b) parts of the Gastrocnemius medialis muscle. In the high oxidative part the CSA of the control adult group was smaller than that of the old vehicle group. In the low oxidative part the CSA of the alfacalcidol-treated animals was smaller compared to the age-matched vehicle group. CA control adult, A6WO (alfacalcidol for 6 weeks, old), old rats treated with alfacalcidol for 6 weeks, V6WO (vehicle for 6 weeks, old), old rats treated with vehicle for 6 weeks; ^#different from CA (P = 0.012); *different from V6WO (P = 0.030); (ANOVA, Bonferroni posthoc); data are represented as mean ± SEM