How to do the Knee Touch Crunch
Knee Touch Crunch is a beginner single-joint isolation pushing exercise targeting the Abs in the Waist region. Performed using bodyweight, it falls under the cardio category. Secondary muscles engaged include Hip Flexors.
Knee Touch Crunch demonstration · © GymiaFit
Knee Touch Crunch at a glance
- Primary muscles
- Abs
- Secondary muscles
- Hip Flexors
- Equipment
- Body Weight
- Level
- Beginner
- Type
- Isolation (single-joint)
- Force
- Push
Knee Touch Crunch step by step
- 1Lie flat on your back with your knees bent and feet flat on the ground.
- 2Place your hands behind your head with your elbows pointing outwards.
- 3Engaging your abs, lift your shoulder blades off the ground and reach your right hand towards your left knee.
- 4Return to the starting position and repeat, this time reaching your left hand towards your right knee.
- 5Continue alternating sides for the desired number of repetitions.
Knee Touch Crunch — questions
What muscles does the Knee Touch Crunch work?
The Knee Touch Crunch primarily targets the Abs. It also recruits the Hip Flexors as secondary movers.
What equipment do I need for the Knee Touch Crunch?
None — the Knee Touch Crunch uses your bodyweight only, so it works at home with nothing but floor space.
Is the Knee Touch Crunch suitable for beginners?
Yes. It is classed as a beginner movement: the pattern is simple enough to learn in a session and easy to scale by adjusting range of motion or load.
What can I do instead of the Knee Touch Crunch?
3/4 Sit-up, 45° Side Bend, Air Bike train the same muscles and make good substitutes when the equipment is taken or the movement does not suit you.
Log it, don't guess it.
The GymiaFit app has the Knee Touch Crunch demo, form cues and set logging built in — plus a muscle map that shows what you have actually trained this week. Free on iOS and Android.