Abstract
Many acute and chronic complaints in the Shoulder Joint are due to a reduced active
stabilization capacity. Procedures to measure isokinetic strength are used to objectify
the muscle deficits and imbalances of various muscle groups.
In this study, Standard values and reference ranges were determined for peak torque
(PT), strength/velocity curve, and range of motion (ROM) at peak torque in the Shoulder
in 19 untrained women and 32 men. Differentiation was made by the individual degrees
of freedom of the Shoulder Joint and the various types of work (concentric, isometric,
eccentric). Moreover, the influence of height, body weight, and body mass index on
isokinetic maximum strength development was investigated.
It was found that it is necessary to distinguish between the various movements and
types of work in development of peak torque. A decrease in maximum strength is observed
in the sequence extension, adduction/flexion, abduction/internal rotation, external
rotation. The maximum strength of men was determined to be higher than that in women.
ROM shows a wide fluctuation and does not possess high validity. Height, as well as
body weight and body mass index have only slight influence on the isokinetic maximum
strength in the Shoulder of untrained men and women.
Key words
Isokinetic - shoulder joint - normal values - peak torque - angle at peak torque
