Leg Extensions
Legs · Machine
How to do it
Set the back pad so your knee sits on the pivot and the roller sits over your ankle, not your shin. Extend to the top and squeeze for a second; lower under control into the stretch. It is the only exercise that truly isolates the quad, and the rectus femoris only gets worked properly here. You feel the quad and nothing else. If the knee complains, cut range at the top, not at the bottom.
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