5-Minute Fitness: Hard Core
Bridge 1 Lie on back with knees bent. 2 Tighten abdominal muscles. 3 Lift buttocks off floor until body forms straight line. 4 Hold for 10 seconds. 5 Return to starting position. D…
Bridge 1 Lie on back with knees bent. 2 Tighten abdominal muscles. 3 Lift buttocks off floor until body forms straight line. 4 Hold for 10 seconds. 5 Return to starting position. D…