Scapular Position Lab Report

Additional common objective measurement of scapular position is the Sahrmann technique.8 This consists of each subject standing with their back touching the wall, knees slightly bent and abdominal muscles activated to flatten the low back against the wall. The tester uses the index fingers and thumbs pinched together to place the radial borders of the index finger against the wall at ear level. The tester instructs the subjects to slide both hands as high as possible without losing contact between the wall. The tester uses their index fingers to place the radial borders to ensure the elbows pointed straight out to keep the shoulder in flexion and external rotation. The final position is judged to be reached when the subject was unable to continue

proposed that given the predictability of the shape of the thorax, anterior movement of the scapula and posterior acromial angle is a predictable, valid index of scapular abduction-adduction.10 They used a computer-assisted slide digitizing system called Postural Analysis Digitizing System (PADS) to determine characteristic values for head and shoulder girdle posture and characteristic range of motion for head protraction-retraction and shoulder protraction-retraction in 20 male subjects with a mean age of 29 years. The PADS system is considered sufficiently accurate for posture assessment. However, these slide photographs that provide an objective record of posture are rarely used in a clinical

The pectoralis minor is lengthened during glenohumeral external rotation, scapular upward rotation, and scapular posterior tilting.20 The pectoralis minor originates in the superior margins of the outer surfaces of the third, fourth and fifth ribs near the cartilage. It inserts on the medial border, superior surface of the coracoid process of the scapula. The pectoralis minor is innervated by the medial pectoral with fibers from a communicating branch of the lateral pectoral. Its actions include tilting the scapula anterior while supporting ribs during inspiration.12 Tightness of this muscle has been shown to increase scapular anterior tilt and internal rotation. 21 J. H. Lee et al. determined the relationships between the degree of forward scapular posture and the pectoralis minor index, the strength of the serratus anterior, the thoracic spine angle and posterior shoulder tightness. The adjusted coefficient of determination r2 was 0.78 (F=59.50, p =0.000) for the simple regression of the forward scapular posture on the pectoralis minor index. The pectoralis minor accounted for 78% of the variance in forward scapular posture. The total explained variance in the forward scapular posture was 93% (F = 29.42, p =0.000). The equation developed from the four predictors. 22Clinical application of measuring the pectoralis minor can