Fig. 9.

A–E: effects of exercise on hexokinase II (HKII) protein abundance in each fiber type [I (A), IIA (B), IIB (C), IIBX (D), and IIX (E)] from 3.5 h postexercise (3.5hPEX) and time-matched sedentary (SED) rats, incubated without or with a submaximally effective insulin dose. Open bar: = SED group; filled bar: 3.5hPEX group. *3.5hPEX versus SED: type I (P < 0.05), IIB (P < 0.01), IIBX (P < 0.001), and IIX (P < 0.001) fibers. Data were analyzed by Student's t-test. Values are means ± SE; n = 3–6 per group. Representative blots and loading controls [myosin heavy chain (MHC)] are included for each fiber type.