Cross-Body Crunch

The Cross-Body Crunch targets the Abdominals and suits beginner-level lifters. With 5 distinct steps, proper form is straightforward to learn and execute.

strengthbeginnerbody onlypullcompound
Cross-Body Crunch - starting position

Starting position

Cross-Body Crunch - ending position

Ending position

Muscles Worked

Primary Abdominals

The abdominals handles the primary load during this movement. This compound movement keeps tension concentrated on a single muscle group.

How to Cross-Body Crunch

  1. 1

    Lie flat on your back and bend your knees about 60 degrees.

  2. 2

    Keep your feet flat on the floor and place your hands loosely behind your head. This will be your starting position.

  3. 3

    Now curl up and bring your right elbow and shoulder across your body while bring your left knee in toward your left shoulder at the same time. Reach with your elbow and try to touch your knee. Exhale as you perform this movement. Tip: Try to bring your shoulder up towards your knee rather than just your elbow and remember that the key is to contract the abs as you perform the movement; not just to move the elbow.

  4. 4

    Now go back down to the starting position as you inhale and repeat with the left elbow and the right knee.

  5. 5

    Continue alternating in this manner until all prescribed repetitions are done.

Common Mistakes

  • Brace your core before initiating the movement — maintain tension throughout the entire range of motion.
  • Control the eccentric (lowering) phase for at least 2 seconds to maximize muscle fiber recruitment.
  • If reps become too easy, slow the tempo or add a pause at the hardest point rather than rushing through more reps.
  • Squeeze at peak contraction for a full second — this is where most of the growth stimulus occurs.

Similar Exercises

Frequently Asked Questions

What muscles does the Cross-Body Crunch work?

The Cross-Body Crunch primarily targets the Abdominals. It's an effective compound exercise for building abdominals strength.

Is the Cross-Body Crunch good for beginners?

Yes, the Cross-Body Crunch is suitable for beginners. Start with light weight to master the 5-step form before adding load.

What equipment do I need for the Cross-Body Crunch?

You need no equipment — just your bodyweight to perform the Cross-Body Crunch. This makes it ideal for home workouts.

Track Your Progress

RepStack logs every set, calculates your e1RM, and coaches progressive overload — automatically.