Table 4.

Relationship Between Scapula Resting Position and Pitching Shoulder Kinematics ^a

	Dominant (Pitching) Shoulder b				Difference, Dominant vs Nondominant b
	X Position	Y Position	Z Position		X Position	Y Position	Z Position
Maximum shoulder ER	0.007	–0.157	0.228		–0.144	–0.209	0.314
P value	.969	.39	.209		.43	.249	.081
Maximum shoulder abduction	0.086	–0.045	–0.145		–0.097	–0.261	0.222
P value	.633	.806	.422		.59	.143	.21
Maximum shoulder horizontal abduction	0.194	–0.264	–0.218		–0.076	–0.265	0.168
P value	.278	.138	.223		.674	.136	.35
Maximum shoulder rotation velocity	0.016	–0.0832	–0.475		–0.017	–0.327	0.013
P value	.928	.644	.006		.924	.063	.945
Maximum shoulder distraction force	–0.173	–0.064	–0.312		–0.219	–0.258	0.065
P value	.344	.727	.082		.228	.154	.725

^a Statistically significant correlations are in bold. ER, external rotation.

^bX position = upward/downward rotation; Y position = internal/external rotation; Z position = anterior/posterior tilt.