Fig. 1.

Effects of an unaccustomed resistance exercise bout on phosphorylation of Akt (A), S6K1 auto-inhibitory domain (T421/S424) (B), and ribosomal protein S6 (RPS6) (C) 24 h after exercise (Post) in young and old subjects. D: representative immunoblots. Bars are means ± SE. Significant main effects and interaction (Intrxn) terms of each age × time ANOVA are shown in A–C. *Post different from before exercise (Pre) within group as determined post hoc by Tukey's honest significant difference (HSD) test, P < 0.05. AU, arbitrary units.