Lie on your side, and cross upper leg over the lower, and rest that foot on the floor.
Raise your lower leg a few inches off the floor, up towards the ceiling, then lower again, aiming to keep the foot off the floor at all times throughout the exercise.
Try and keep the knee and toes of the lower leg facing forward.
Ankle weights, or resistance bands will make this exercise harder.

BEGINNERS
Aim for 10 lifts each leg.
INTERMEDIATE
Aim for 15 lifts each leg.
ADVANCED
Aim for 20+ lifts each leg.
Tutorial provided by netfit
Raise your lower leg a few inches off the floor, up towards the ceiling, then lower again, aiming to keep the foot off the floor at all times throughout the exercise.
Try and keep the knee and toes of the lower leg facing forward.
Ankle weights, or resistance bands will make this exercise harder.

BEGINNERS
Aim for 10 lifts each leg.
INTERMEDIATE
Aim for 15 lifts each leg.
ADVANCED
Aim for 20+ lifts each leg.
Tutorial provided by netfit