Table 1. Z-score normalized muscle activity of the upper trapezius, lower trapezius, and serratus anterior during Y-raise exercises

Subjects	Shoulder abduction angles	UT_Z-score	LT_Z-score	SA_Z-score
1	160	-1.32	-1.02	1.39
	150	0.22	1.36	-0.48
	140	1.10	-0.34	-0.91
2	160	-1.40	1.30	1.41
	150	0.53	-0.16	-0.61
	140	0.87	-1.14	-0.80
3	160	-1.35	-1.22	1.26
	150	0.32	-0.02	-0.08
	140	1.03	1.23	-1.18
4	160	-1.29	-0.37	1.06
	150	1.15	1.37	0.27
	140	0.13	-1.00	-1.34
5	160	-1.29	1.37	1.41
	150	1.15	-0.99	-0.75
	140	0.13	-0.38	-0.66
6	160	-1.39	-1.27	1.41
	150	0.48	0.10	-0.63
	140	0.92	1.17	-0.79
7	160	-0.94	1.30	1.41
	150	-0.44	-1.13	-0.71
	140	1.38	-0.18	-0.71
8	160	-0.92	-0.72	1.12
	150	-0.47	-0.69	0.19
	140	1.39	1.41	-1.31
9	160	-1.29	0.81	1.38
	150	0.15	0.60	-0.44
	140	1.14	-1.41	-0.94
10	160	-1.34	1.34	1.36
	150	0.27	-1.06	-0.35
	140	1.07	-0.28	-1.01
11	160	-1.23	-1.02	1.10
	150	0.02	-0.34	0.23
	140	1.21	1.36	-1.32
12	160	-1.38	0.97	1.32
	150	0.41	0.40	-0.21
	140	0.97	-1.38	-1.10
13	160	0.06	0.64	1.01
	150	-1.25	0.77	0.35
	140	1.20	-1.41	-1.36
14	160	-0.67	1.39	1.14
	150	-0.75	-0.93	0.16
	140	1.41	-0.46	-1.30
15	160	-1.13	0.20	1.41
	150	-0.17	1.11	-0.76
	140	1.30	-1.31	-0.65

Abbreviations: UT, upper trapezius; LT, lower trapezius; SA, serratus anterior.