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§ L · Exercises · AbsUpdated 6/2026

Elbow To Knee

This exercise develops controlled abdominal contraction and rotational strength without equipment.

Muscle group
Abs
Equipment
Bodyweight
Exercise type
Compound
Technique
Basic technique

Muscles worked

§ 01 · Muscles
Primary muscle
Abs

How to perform

§ 02 · Steps
  1. 01

    Lie on your back using your body weight, bend your knees, and lift your legs to about a 90-degree angle. Place your hands lightly behind your head.

  2. 02

    Brace your core and keep your lower back pressed against the floor under control.

  3. 03

    Lift your shoulder blades off the floor and rotate your upper body so your right elbow moves toward your left knee as you bring your knee toward your elbow.

  4. 04

    Return to the center under control and repeat on the opposite side, keeping your abs engaged throughout the entire movement.

How to get started at the gym

§ 03 · SisuLift

Elbow To Knee is ready to go in the SisuLift exercise library. The app builds you a program, suggests starting weights and shows this same animation during your workout at the gym.

  • ·A ready training program based on your goal
  • ·Starting weight suggestions and automatic progression
  • ·Set logging and rest timer at the gym
Download on the App StoreGet it on Google Play
SisuLift app workout view

Tips

§ 04 · Tips

Keep your neck in a neutral position and avoid pulling your head with your hands. Rotate through your thoracic spine and keep your lower back against the floor so the movement doesn't become dominated by your hip flexors.

This exercise develops controlled abdominal contraction and rotational strength without equipment.

More exercises: Abs

§ 05 · Same muscles

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