Keep the rear-conclude muscles and abs engaged. Bend your elbows to lower down until eventually you almost contact the floor. Lift back up by pushing by means of your elbows, Keep your torso in a straight line all through the move. Why it is a winner: Interval teaching boosts your https://econopass.com/health-and-fitness/fitness-zone/fitness-effective-workouts/10-effective-exercises-building-lifelong-core-strength-without-planks/