This content is restricted to site members. If you are an existing user, please log in. New users may register below.
Plank Exercise The plank is an isometric core strength exercise that involves maintaining a position similar to a push-up for the maximum possible time. Difficulty level: Beginner Equipment: No equipment Muscles involved: Abs · Glutes Focus: Strength STEPS Lie on the floor with elbows directly beneath your shoulders and legs