Figure 9. AMPK phosphorylation level in skeletal muscle of different groups. (A, C, E, G, I) Western blot images. (B, D, F, H, J) Statistical graphs. Data represent mean ± SE, n=4-5. *P <0.05 main effect. #P <0.05 compared with young mice. &P <0.05 compared with middle-aged mice.