Table 5.

Description of the serratus anterior and levator scapulae assessment points.

Muscle of Interest	Measurement Points
Levator scapulae	Between the posterior margin of sternocleidomastoid and anterior margin of the upper trapezius [104,105,106,107], at level of C4/5 [90]
SA upper/middle portion	Over the fourth rib, at the midpoint between the latissimus dorsi and the pectoralis major [93,94]
SA lower portion	Over the seventh rib, in the midline of the axilla [93], for SA lower portion (SAlow) [93]