Table 4.

Results of bivariate linear correlation analyses between lower trapezius and serratus anterior manual muscle test (MMT) strength (normalized isometric force) and change in scapular motion with maximal contraction

Scapular Motion	Normalized MMT Isometric Strength
	Lower Trapezius	Serratus Anterior
Upward Rotation	r = 0.57*	r = 0.41†
Posterior Tilt	r = −0.025	r = −0.11
External Rotation	r = −0.06	r = −0.17

^*p = 0.003;

^†p = 0.042