Assessing Hip Abduction and Adduction Strength: Can Greater Segmental Fixation Enhance the Reproducibility?

A photograph showing the projection and securing of the ruler maker at the level of the ASIS.

(A) A photograph showing a subject being secured as per the instructions provided by the manufacturer (setup A). (B) A photograph showing a subject secured in the novel setup described (setup B).

A schematic diagram detailing the protocol of exercises undertaken for hip abduction and adduction with the Cybex dynamometer. The diagram shows the exercise sequence per side of testing.

Isokinetic abduction (right side) at 30°/s. The graph shows the distribution of data with mean abduction torques between weeks 1 and 2 (x axis) against the difference in means between the 2 weeks (y axis). The horizontal lines represent the limits of repeatability (the distribution of 95% of the data; ±2 standard deviations from the mean).

Isokinetic abduction at 30°/s. The graph shows the relationship between the mean abduction torque (adjusted for mass) and the maximum angle of pelvic rotation (in the transverse plane). Left and right sides shown together.