Digital Commons Network^™

Effects Of Fatigue On Pelvic And Scapular Stabilizers In Overhead Throwing, Julie Sherrill

Health, Human Performance and Recreation Undergraduate Honors Theses

Human movement is based on proximal to distal sequencing of the kinetic chain. Efficiency of the shoulder is dependent upon the stability and function of the pelvis and scapula. PURPOSE: To determine if pelvic and scapular muscle activations are altered in overhead throwing following fatigue. METHODS: Eleven [19.2 ± 1.0 years; 168.9 ± 6.6 cm; 68.9 + 8.7 kg] softball players volunteered. Surface electromyographic [sEMG] electrodes were placed on bilateral gluteus medius, throwing arm latissimus dorsi, lower trapezius [LT], middle trapezius [MT], and serratus anterior [SA]. Participants had to catch a simulated hit ball and perform their positional throw. Infielders …