Side Balance Leg Curls
To do the Side Balance Curl, you’ll stay in that side balance position with your knee down and hand about under your shoulder. With your leg raised to parallel to the ground, or as close as you can, squeeze your glute so your leg is in line with your body.
Keeping your knee still, and a nice straight line from your head to your knee, curl your heel in toward your butt. Do not flex your hip, tucking the knee forward. Instead use your hamstring to curl the heel back.
Keep the leg as close to parallel to the ground as you curl and extend back out. Feel your quad even work as you extend your knee and bring the leg back out straight.