Exercise guide
Sitting Air Twisting Crunch On A Padded Stool
- Beginner
- Compound
- Rep-based
- Waist
This exercise targets the entire abdominal wall and obliques by combining a seated crunch with torso rotation, enhancing core stability and rotational strength. The seated position allows for a greater focus on the hip flexors and lower abs while maintaining a controlled range of motion.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Sit on the edge of a padded stool or step with your feet flat on the floor.
- Lean back slightly (about 45 degrees) to engage your core while keeping your spine neutral.
- Place your fingertips lightly behind your ears with your elbows pointed out to the sides.
- Lift your feet 2-3 inches off the floor to find your balance point.
How to do it
- Exhale as you pull one knee toward your chest while rotating your torso to bring the opposite elbow toward that knee.
- Inhale as you return to the starting position, extending your leg back out without letting your foot touch the floor.
- Perform the same movement on the opposite side, alternating in a smooth, rhythmic tempo.
- Maintain a steady 2-1-2 tempo (2 seconds to crunch, 1 second hold, 2 seconds to return).
Form checklist
- Rotate through the mid-back (thoracic spine) rather than just pulling the elbow forward.
- Keep your chest lifted and avoid rounding your shoulders or pulling on your neck.
- Ensure your core remains braced and your lower back doesn't arch excessively.
- Keep your feet off the ground throughout the entire set to maintain constant tension.
Pro tips
- Focus on the mind-muscle connection by squeezing your obliques at the point of maximum rotation.
- Keep your stationary leg extended and hovering to increase the demand on your lower abdominals.
Make it harder
- Hold the peak contraction for 2-3 seconds on each side to increase time under tension.
- Perform the movement with a medicine ball held at chest height to add external resistance.
Frequently asked
- What muscles does the sitting air twisting crunch on a padded stool work?
- The sitting air twisting crunch on a padded stool primarily targets the abs, hip flexors, and obliques, and also works the erector spinae as secondary muscles.
- What equipment do you need for the sitting air twisting crunch on a padded stool?
- The sitting air twisting crunch on a padded stool requires no equipment — just your body weight.
- Is the sitting air twisting crunch on a padded stool good for beginners?
- Yes. The sitting air twisting crunch on a padded stool is a beginner-friendly movement and a strong foundation to build on.
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