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 Cardio Workout | 4/13/20 April 13, 2020 Shoulder Bridge November 8, 2019 Russian Twist November 8, 2019