Tuck Crunch

The Tuck Crunch isolates the Abdominals through a controlled range of motion. This beginner-level body only exercise builds focused strength where compound movements often fall short.

strengthbeginnerbody onlypullisolation
Tuck Crunch - starting position

Starting position

Tuck Crunch - ending position

Ending position

Muscles Worked

Primary Abdominals

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

How to Tuck Crunch

  1. 1

    To begin, lie down on the floor or an exercise mat with your back pressed against the floor. Your arms should be lying across your sides with the palms facing down.

  2. 2

    Your legs should be crossed by wrapping one ankle around the other. Slowly elevate your legs up in the air until your thighs are perpendicular to the floor with a slight bend at the knees. Note: Your knees and toes should be parallel to the floor as opposed to the thighs.

  3. 3

    Move your arms from the floor and cross them so they are resting on your chest. This is the starting position.

  4. 4

    While keeping your lower back pressed against the floor, slowly lift your torso. Remember to exhale while perform this part of the exercise.

  5. 5

    Slowly begin to lower your torso back down to the starting position while inhaling.

  6. 6

    Repeat for the recommended amount of repetitions.

Common Mistakes

  • Focus on the mind-muscle connection — feel the target muscle working through each rep.
  • Use a controlled tempo of 2 seconds up, 2 seconds down to eliminate momentum.
  • 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 Tuck Crunch work?

The Tuck Crunch primarily targets the Abdominals. It's an effective isolation exercise for building abdominals strength.

Is the Tuck Crunch good for beginners?

Yes, the Tuck Crunch is suitable for beginners. Start with light weight to master the 6-step form before adding load.

What equipment do I need for the Tuck Crunch?

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

Track Your Progress

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