Plank Elbows flexed at 90 degree angle, feet together with weight on the toes.Back flat with core engaged. Isometric contraction. Read more articles Previous PostMilitary Press Next PostPush Up You Might Also Like Calf Raise November 4, 2019 At-Home Leg Workout | 3/25/2020 March 25, 2020 Superman November 8, 2019