Exercise guide · Beginner · Compound

Inverted Style Cross Body Crunch: How to Do It & Muscles Worked

The cross body crunch is a bodyweight abdominal exercise that targets the abs and obliques. It involves twisting the torso to bring an elbow towards the opposite knee, engaging the core muscles.

Primary muscles
Abs
Secondary muscles
Obliques
Equipment
Body Weight
Level · type
Beginner · Compound
Demonstration of the inverted style cross body crunch
Front view: muscles worked by the inverted style cross body crunch. Primary: abs. Secondary: obliques.
Back view: muscles worked by the inverted style cross body crunch. Primary: abs. Secondary: obliques.
Primary Secondary

How to do the inverted style cross body crunch

  1. Step 1: Lie flat on your back with your knees bent and feet flat on the ground.
  2. Step 2: Place your hands behind your head with your elbows pointing outwards.
  3. Step 3: Engaging your abs, lift your upper body off the ground and twist to bring your right elbow towards your left knee. Perform with inverted intensity.
  4. Step 4: Pause for a moment at the top, then slowly lower your upper body back down to the starting position.
  5. Step 5: Repeat on the other side, bringing your left elbow towards your right knee.
  6. Step 6: Repeat for the desired number of repetitions.

Sets, reps and programming

Suggested sets, reps and rest for the inverted style cross body crunch by training goal
Goal Sets Reps Rest Effort
Strength 3–5 3–6 3–5 min 1–3 reps in reserve
Muscle growth 3–4 6–12 2–3 min 1–2 reps in reserve
Muscular endurance 2–3 12–20 1–2 min 1–3 reps in reserve

Ranges follow the ACSM position stand on progression in resistance training. Muscle grows across a wide range of loads when sets end close to failure (Schoenfeld et al., 2017), longer rests between heavy sets support strength and size (Schoenfeld et al., 2016), and stopping a rep or two short of failure works about as well as training to failure (Grgic et al., 2022). Estimate your working weights with the strength calculators.

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