Table 2. Pairwise comparisons of muscle activities during various shoulder horizontal abduction exercises.

Measures	PSHA vs. PSHATE	PSHA vs. SSHATE	PSHATE vs. SSHATE
UT	1.000 (0.077)	0.033 (0.454)*	0.018 (0.523)*
LT	0.010 (0.977)*	1.000 (0.249)	0.005 (1.040)*
UT/LT	0.384 (0.364)	0.919 (0.267)	1.000 (0.073)

Values aer P-value (effect size).
Significant difference between shoulder horizontal abduction exercises, p < 0.05.
Abbreviations: LT, lower trapezius; MVIC, maximal voluntary isometric contraction; PSHA, prone shoulder horizontal abduction; PSHATE, prone shoulder horizontal abduction with thoracic extension; SSHATE, sitting shoulder horizontal abduction with thoracic extension; UT, upper trapezius.