A then pushes back against B's chest for 5 seconds, then relaxes and stretches for the second 0. Lower Back - A sits with legs straight out and together. B presses his chest against A's back and against the legs, just above the knees, keeping the legs straight. A then pushes back for 5 and stretches for a second 10. Hamstrings - A lays back with one leg straight in the air.
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.