Answer:
a. Quadruped arm and opposite leg raise
Explanation:
A client experiences difficulty in performing the prone iso-abs exercise, because the regression is Quadruped arm and opposite leg raise.
Iso-abs exercise is a beginner exercise that stabilizes the core muscle. Press the hips together. Slowly lift the pelvis from the floor til the back is straight. Carry this position for the desired time or til proper form bcomes difficult to maintained.
