B presses the heel of the raised foot and the thigh, just above the knee to straighten the leg. B presses against the bent knee and the shoulder opposite the location of the knee. For instance, the right shoulder and the right knee are pressed. A tries to turn the hips back. Adductors - A lays on his back, puts his legs straight up in the air and spreads his legs.
B presses the legs wider, generally just below the knee.
A tries to squeeze the legs together. Quadriceps - A lays on his stomach and bends one leg. B kneels beside A lifts the thigh of that leg up onto his thigh, forcing A's foot down. After 10 seconds, A tries to straighten his leg. Abdominals - A lays on his stomach with his hands clasped behind his head.