- Outcome measures will consist of total range of motion (TROM), difference in internal rotation (GIRD), external rotation gain (ERG), Humeral retroversion (HRT)- all measured in degrees. Strength measurement will consisit of maximal isometric strength (Newton), isokinetic peak torque for each direction (Newton/Meter) and agonist:antagonist muscle ratios- concentric, eccentric and dynamic control ratio ( Eccentric external rotation/concentric internal rotation).