Motion Analysis of Glenohumeral Joint

Carol HawthorneNovember 30, 2009

HPEZ 373

The serve

http://www.youtube.com/watch?v=4eeFzIZRUpg

Glenohumeral joint Multiaxial ball &

socket joint A.K.A. – enarthrodial Moves in all planes Most movable joint

in the body Stability < Mobility

The Rotator Cuff

Phases

Phase 1: Horizontal AbductionMuscles involved: Deltoid, Infraspinatus, Teres Minor

Phase 2: AbductionMuscles involved: Supraspinatus, Deltoid

Phase 3: Flexion & Adduction

Muscles involved: Pectoralis Major, Deltoid, Teres Major, Latissimus Dorsi, Coracobrachialis, & Subscapularis,

Glenohumeral Injuries Isokinetic Peak Torque Ratios and Shoulder Injury: History in

Adolescent Female Volleyball Athletes Christopher D. Stickley, PhD, ATC; Ronald K. Hetzler, PhD, FACSM; Bret

G. Freemyer, MS, ATC; Iris F. Kimura, PhD, PT, ATC

Glenohumeral Injuries Isokinetic Scapular Muscle Performance in Overhead Athletes With

and Without Impingement Symptoms Ann M. Cools; Erik E. Witvrouw; Nele N. Mahieu; Lieven A. Danneels

Muscle Length Tension

The need to strengthen!!

Why is this important to you?

Summary

Any Questions?