A BETTER WAY TO TEST HIP EXTENSION
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.