Lower your body until your rear knee approximately touches the floor and your front thigh is parallel to the floor. Then push from the heel of your respective entrance foot to return to standing, retaining the back foot within the bench. Repeat for demanded reps then change legs. Standing with https://econopass.com/health-and-fitness/fitness-zone/fitness-effective-workouts/10-effective-exercises-building-lifelong-core-strength-without-planks/