HOW: Anchor a band roughly knee height, and place the band around the back of the desired lower leg. Elevate one leg and stay balanced on the leg with the band. You will then perform a single leg squat while leaning into the band and keeping your trunk straight.
FEEL: You will feel the muscles on the front of your thigh working with this exercise.
COMPENSATION: Avoid leaning your trunk forward. The more you lean into the band the easier it will be to keep your trunk upright.