Setup: Plenty of floor space.
Position: Seated on the floor resting back on your elbows, legs together and straight, toes up.
Movement: Flex one hip by bringing the knee toward the chest. Keep both feet pointed up (dorsi flexion). When the foot is just past the opposite knee, return to the start, repeat.
Coaching Points: When flexing the hip, the edge heel of the leg in motion is even with the top of the opposite leg.