Abs · Body weight · Beginner

How to do Knee Touch Crunch

The knee touch crunch is a bodyweight abdominal exercise that targets the abs and also engages the hip flexors. It involves alternating reaching across the body to touch the opposite knee while performing a crunch motion.

Knee Touch Crunch demonstration
Primary muscle
Abs
Also works
Hip flexors
Equipment
Body weight
Level
Beginner
Category
Abs

How to do Knee Touch Crunch, step by step

  1. Lie 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. Engaging your abs, lift your shoulder blades off the ground and reach your right hand towards your left knee.
  4. Return to the starting position and repeat, this time reaching your left hand towards your right knee.
  5. Continue alternating sides for the desired number of repetitions.

Muscles worked

Knee Touch Crunch works your abs as the main mover, with help from your hip flexors.

Track Knee Touch Crunch in SPLYT

Knee Touch Crunch is already in SPLYT’s exercise library. Log your sets, reps and weight on iPhone or Apple Watch, with last time’s weights already filled in.

Get SPLYT on the App Store