Air Twisting Crunch
- Target muscle
- Obliques
- Synergist muscles
- Gluteus Maximus, Quadriceps, Rectus Abdominis
- Equipment
- Body weight
- Body part
- Waist
- Type
- Strength
The air twisting crunch is a bodyweight core exercise that primarily targets the obliques, with the rectus abdominis assisting as you curl up and the quadriceps and gluteus maximus helping stabilize your raised legs. Performed on your back with the legs lifted, the twisting motion makes it a simple, equipment-free way to train rotational core strength at home.
How to do the Air Twisting Crunch
- 1Lie flat on your back and lift your legs so your hips and knees are bent at roughly 90 degrees, shins parallel to the floor.
- 2Place your hands lightly behind your head with your elbows pointing out to the sides.
- 3Brace your core and pull your lower back gently into the floor to remove any arch.
- 4Curl your shoulder blades off the floor and rotate your torso, bringing one elbow toward the opposite knee.
- 5Pause briefly at the top and squeeze your obliques, keeping your neck relaxed.
- 6Lower under control back to the start without letting your shoulders fully rest on the floor.
- 7Repeat to the other side, alternating each rep, then set your feet down to finish.
Form tips
- Drive the rotation from your torso, not your arms — keep your elbows wide and let your obliques turn your chest toward the knee.
- Exhale as you crunch and twist, and keep your core braced throughout to maintain tension.
- Move slowly and deliberately; controlled reps work the obliques harder than fast, swinging ones.
- Keep your lower back pressed into the floor the entire set to protect your spine and keep the work on your abs.
Common mistakes
- Pulling on your head and neck with your hands, which strains the neck and takes tension off the obliques.
- Rushing and using momentum to swing up, which lets your hip flexors take over instead of your core.
- Letting your lower back arch off the floor, which reduces ab engagement and stresses the spine.
- Only lifting straight up without truly rotating, so the obliques never do the work the twist is meant to target.
Frequently asked questions
What muscles does the air twisting crunch work?
It primarily works the obliques, with the rectus abdominis assisting on the curl and the quadriceps and gluteus maximus helping hold your raised legs steady.
Is the air twisting crunch good for beginners?
Yes. It uses only your body weight and is easy to scale — start with fewer, slower reps and focus on rotating from the torso before adding volume.
How many reps should I do?
A good starting point is 2–3 sets of 10–15 reps per side, performed slowly with control. Add reps or sets as your obliques get stronger.
Where should I feel the air twisting crunch?
You should feel it along the sides of your waist (the obliques) and in the front of your abs. If you mostly feel your neck or hip flexors, slow down and rotate more from your core.
