A BETTER WAY TO TEST HIP EXTENSION

Test the extreme ends of the strength continuum — where real-world performance actually happens.
Other techniques, such as a vertical jump with a force plate, have been shown to be unreliable for force-velocity profiling.

SQUATS AND VERTICAL JUMPS

Difficult to know what caused change: Can not be certain whether change is caused by adaptation versus changes in skilled technical execution.

Limited view of performance: Tests relatively slow speeds at bodyweight and above that represent a narrow aspect of performance.

Bilateral compensation: Allows stronger limb to compensate for a weaker limb.

A420 LEG PRESS

Measure pure adaptation: Confines movement to remove technical execution as a factor.

Broad view of performance: Measures a number of force-velocity points from nearly absolute velocity to maximum strength.

Guaranteed unilateral independence: Unilateral machines provide separate left- and right-side results that help you identify imbalances.