Table 2.
Upper extremity muscle definitions and group abbreviations. Muscles were grouped based on a combination of anatomical location and muscle function (identified from the segment power analysis).
| Muscle | Origin | Insertion |
|---|---|---|
| ADELT | ||
| Anterior Deltoid | Clavicle | Humerus |
| MDELT | ||
| Middle Deltoid | Scapula | Humerus |
| PDELT | ||
| Posterior Deltoid | Scapula | Humerus |
| PECM | ||
| Pectoralis Major, clavicular head | Clavicle | Humerus |
| Pectoralis Major, sternal head 1 | Thorax | Humerus |
| Pectoralis Major, sternal head 2 | Thorax | Humerus |
| Corachobrachialis | Scapula | Humerus |
| LAT | ||
| Teres Major | Scapula | Humerus |
| Lattissimus Dorsi 1 | Thorax | Humerus |
| Lattissimus Dorsi 2 | Thorax | Humerus |
| Lattissimus Dorsi 3 | Thorax | Humerus |
| SUBSC | ||
| Subscapularis | Scapula | Humerus |
| INFSP | ||
| Infraspinatus | Scapula | Humerus |
| TMIN | ||
| Teres Minor | Scapula | Humerus |
| SUPSP | ||
| Supraspinatus | Scapula | Humerus |
| BRD | ||
| Brachoradialis | Humerus | Radius |
| Brachialis | Humerus | Ulna |
| BIC | ||
| Biceps Brachii, short head | Scapula | Radius |
| Biceps Brachii, long head | Scapula | Radius |
| TRIlat | ||
| Anconeus | Humerus | Ulna |
| Triceps Brachii, Lateral | Humerus | Ulna |
| Triceps Brachii, Medial | Humerus | Ulna |
| TRIlong | ||
| Triceps Brachii, Long Head | Scapula | Ulna |
| SUP | ||
| Supinator | Ulna | Radius |
| PT | ||
| Pronator Quadratus | Ulna | Radius |
| Pronator Teres | Humerus | Radius |