Table 1.

Intrasession reliability (ICC and SEM%) of surface electromyography root mean square value calculated during the maximum voluntary isometric test and during the concentric and eccentric phase of each exercise.

	Maximum Voluntary Isometric Activation				Muscle Activation During Exercises (2nd vs. 5th Rep)
					Concentric Phase		Eccentric Phase
Muscle	Trial Min ($\overline{\mathit{m}}$ ± SD)	Trial Max ($\overline{\mathit{m}}$ ± SD)	ICC	SEM%	ICC (Min–Max)	SEM% (Min–Max)	ICC (Min–Max)	SEM% (Min–Max)
Anterior deltoid	0.885 ± 0.148	0.891± 0.103	0.927	3.8	0.803–0.856	5.4–6.3	0.829–0.849	5.5–5.8
Medial deltoid	0.760 ± 0.116	0.782 ± 0.134	0.893	5.3	0.795–0.836	6.6–7.3	0.811–0.868	5.9–7.0
Posterior deltoid	0.616 ± 0.121	0.637 ± 0.109	0.931	4.8	0.826–0.901	5.8–7.7	0.832–0.892	6.0–7.5
Pectoralis major	0.801 ± 0.112	0.820 ± 0.115	0.878	4.9	0.811–0.843	5.5–6.1	0.798–0.857	5.3–6.4
Upper trapezius	0.617 ± 0.104	0.626 ± 0.09	0.921	2.7	0.839–0.904	4.9–6.3	0.832–0.890	5.2–6.5
Triceps brachii	0.493 ± 0.118	0.529 ± 0.112	0.913	6.6	0.849–0.893	7.4–8.7	0.856–0.903	7.0–8.5

ICC, intraclass correlation coefficient; SEM%, standard error of measurement as percentage; $\overline{m}$, mean; SD, standard deviation.