Sissy Squats

Here we isolate the lower quadriceps.  This exercise closely duplicates the leg extension in the way it effects the legs.  Stress will be felt right down to where the quadriceps insert into the knee.  

Implementation:  Standing upright, with feet a few inches apart, hold something else for support.  Bend knees, raise up on toes, slowly lower yourself toward the floor, letting your pelvis and knees forward.  Buttocks should almost touch your heels.  

Hold for a moment while stretching the thigh muscles. Straighten your legs, flexing your thigh muscles hard at the top, for maximum cut and development.