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. Author manuscript; available in PMC: 2022 Dec 8.
Published in final edited form as: J Biol Rhythms. 2022 Sep 21;37(6):579–592. doi: 10.1177/07487304221122662

Figure 2. The exercise-induced phase shift of the skeletal muscle clock.

Figure 2.

Exercise can induce a phase shift in the skeletal muscle clock in response to the timing of exercise shown here as a representative effect of either Early Active (AM) or Late Active (PM) phase exercise (Ex; dashed vertical lines). Shifts in the muscle clock phase (dashed curve) are identified through Period 2 (Per2) of the muscle clock’s negative arm, from its rhythm prior to exercise (solid curve). Arrows indicate the direction of the phase shift.