Positioning: Get started by standing about two ft before a bench or any durable elevated surface. Prolong 1 foot backward and rest the very best of that foot within the bench. Your other foot should really continue to be firmly planted on the ground forward of you. As outlined by https://econopass.com/health-and-fitness/fitness-zone/fitness-effective-workouts/10-effective-exercises-building-lifelong-core-strength-without-planks/