elbow-to-knee

A waist exercise targeting the abs, performed with body weight.

elbow-to-knee demonstration
elbow-to-knee β€” demonstration

Body part

Waist

Equipment

Body Weight

Target muscles

Abs

Secondary muscles

Obliques

How to do elbow-to-knee

  1. Start by lying flat on your back with your knees bent and feet flat on the ground.

  2. Place your hands behind your head with your elbows pointing outwards.

  3. Engage your abs and lift your upper body off the ground, bringing your right elbow towards your left knee.

  4. At the same time, bring your left knee towards your right elbow, creating a twisting motion.

  5. Pause for a moment at the top, then slowly lower your upper body and extend your legs back to the starting position.

  6. Repeat the movement, this time bringing your left elbow towards your right knee and your right knee towards your left elbow.

  7. Continue alternating sides for the desired number of repetitions.

Muscles worked

Primary (target)

Abs

Secondary

Obliques

Related exercises

All waist exercises β†’

Track elbow-to-knee in NutriMind

Log your sets and the app does the rest β€” automatic PR detection, progression charts for every lift, and progressive overload that adjusts your next workout. Paired with AI nutrition coaching so your training and your plate pull in the same direction.

Planning your next heavy session? Estimate your max with the One Rep Max Calculator and build up to it with the Warm-up Calculator. More free tools β†’