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 At-Home Ab Workout March 24, 2020 At-Home Cardio Workout | 4/13/20 April 13, 2020 Dumbbell Chest Press November 8, 2019