BILATERAL ISOKINETIC VARIABLES OF THE SHOULDER - A PREDICTION MODEL FOR YOUNG MEN

Clinicians frequently want to know the pre-injury strength of an uninj ured limb. The purpose of this study was to delineate the differences in bilateral isokinetic peak torque (PT) at 60 degrees/s and 240 degre es/s, and torque acceleration energy (TAE), average power (AP) and tot al work (TW) at 240 degrees/s during shoulder extension and flexion mo vements, and to develop a method to determine the expected maximal iso kinetic variables of the dominant shoulder based upon isokinetic measu rements from the non-dominant shoulder. Shoulder isokinetic meaurement s were obtained from 30 normal young male adults. While bilateral corr elation was significant (P<0.01), results also suggest significant bil ateral differences P<0.01). Thus, it is inappropriate to use the uninj ured extremity to predict the pre-injured strength of the injured side without adjustment. In this investigation models were developed relat ing the expected maximal isokinetic measurement of the dominant should er to the nondominant shoulder measurements.