A. ATPase staining (pH 10.7) of soleus muscle fibers from the SDRs. In this staining, type 1 fibers are stained light, and type 2 fibers are dark. Scale bar: 100 μm. B. ATPase staining (pH 10.7) of EDL muscle fibers from the SDRs. C. BCAA did not increase the CSAs in the soleus muscles. Dex elicited a slight increment in the CSAs compared to the control. The administration of both Dex and BCAA resulted in a decrease in CSA compared to the Dex-treated SDRs. *, P < 0.05 vs. control group; ¶, P < 0.05 vs. Dex-treated group. D. BCAA did not increase but rather decreased the CSAs in the EDL muscles. Dex elicited a slight increment in CSA, and the administration of both Dex and BCAA resulted in a decrease in CSA compared to the control and Dex-treated SDRs, respectively. *, P < 0.05 vs. control group; ¶, P < 0.05 vs. Dex-treated group.