Core / Beginner / Compound (multi-joint)

Elbow to Knee

A bodyweight exercise for the abs.

At a glance

Primary

Abs

Equipment

Bodyweight

Movement pattern

Trunk flexion

Level

Beginner

Type

Core, Compound (multi-joint)

How to do it

1. Lie on the floor, crossing your right leg across your bent left knee. Clasp your hands behind your head, beginning with your shoulder blades on the ground. This will be your starting position.
2. Perform the motion by flexing the spine and rotating your torso to bring the left elbow to the right knee.
3. Return to the starting position and repeat the movement for the desired number of repetitions before switching sides.

Common mistakes

• ✗ Pulling the head and elbow toward the knee.

  Why it hurts: The neck is strained and the ribcage does not rotate.

  ✓ Instead: Keep the hands light and rotate the shoulder toward the opposite hip.

• ✗ Going fast.

  Why it hurts: It turns into flapping and the lower back lifts.

  ✓ Instead: Slow down and keep the lower back on the floor.

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