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Mean and standard deviation of the posterior deltoid muscle activity (RMSn) for each exercise: the bench press (BP), dumbbell fly (DF), shoulder press (SP), and lateral raise (LR) exercises.
a, b, c, d, ep ≤ 0.05, significant difference between the LR and DF, LR and BP, LR and SP, SP and DF, and SP and BP.
