PlanWorkouts

Exercise 3640 · REF dTg95eZ

Knee Touch Crunch exercise animation

Knee Touch Crunch

Category
Waist
Equipment
Body Weight
Target
Abs

The knee-touch crunch adds a reaching, rotational element to a standard crunch, bringing the opposite elbow toward the rising knee so the obliques get pulled into the movement along with the rectus abdominis. It's a low-intensity way to train rotation and flexion together without any equipment. Move with control rather than momentum — swinging through the reach is where most of the benefit gets lost.

How to Do the Knee Touch Crunch

  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

The Knee Touch Crunch primarily targets the Abs, with Hip Flexors as the primary synergist muscle group.

More Waist Exercises

3/4 Sit-Up 3/4 Sit-Up Body Weight · Abs 45° Side Bend 45° Side Bend Body Weight · Abs Air Bike Air Bike Body Weight · Abs Alternate Heel Touchers Alternate Heel Touchers Body Weight · Abs Arm Slingers Hanging Bent Knee Legs Arm Slingers Hanging Bent Knee Legs Body Weight · Abs Arm Slingers Hanging Straight Legs Arm Slingers Hanging Straight Legs Body Weight · Abs

More Abs Exercises

Arms Overhead Full Sit-Up (male) Arms Overhead Full Sit-Up (male) Body Weight · Abs Assisted Hanging Knee Raise Assisted Hanging Knee Raise Assisted · Abs Assisted Hanging Knee Raise With Throw Down Assisted Hanging Knee Raise With Throw Down Assisted · Abs Assisted Lying Leg Raise With Lateral Throw Down Assisted Lying Leg Raise With Lateral Throw Down Assisted · Abs Assisted Lying Leg Raise With Throw Down Assisted Lying Leg Raise With Throw Down Assisted · Abs Assisted Motion Russian Twist Assisted Motion Russian Twist Medicine Ball · Abs

Equipment Alternatives

Don't have body weight? These target the same abs with different equipment.

Assisted Hanging Knee Raise Assisted Hanging Knee Raise Assisted · Abs Assisted Motion Russian Twist Assisted Motion Russian Twist Medicine Ball · Abs Band Alternating V-Up Band Alternating V-Up Band · Abs Barbell Press Sit-Up Barbell Press Sit-Up Barbell · Abs

FAQ

What muscles does the Knee Touch Crunch work?
The Knee Touch Crunch primarily targets the abs, with the hip flexors as the main supporting muscle group.
What equipment do I need for the Knee Touch Crunch?
The Knee Touch Crunch is done with no equipment — just body weight.
What's a good alternative to the Knee Touch Crunch?
If you don't have access to the space or setup it needs, the Assisted Hanging Knee Raise targets the same abs using assisted instead.