Exercise technique

stability ball crunch (full range hands behind head)

The stability ball crunch (full range hands behind head) is an abdominal exercise performed on a stability ball, targeting the abs and engaging the hip flexors as secondary muscles. The movement requires core engagement and balance to execute the crunch through a full range of motion while maintaining stability on the ball.

How do you perform this exercise?

  1. Sit on the stability ball with your feet flat on the ground and your knees bent at a 90-degree angle.
  2. Place your hands behind your head with your elbows pointing outwards.
  3. Engaging your abs, slowly curl your upper body forward, bringing your chest towards your knees.
  4. Pause for a moment at the top, then slowly lower your upper body back to the starting position.
  5. Repeat for the desired number of repetitions.

Which other muscles are involved?

Hip flexors.

How do you log your sets?

How do you track progressive overload?

Source: ExerciseDB catalogue and demonstration. Related movements are options to compare, not equivalent loads or a prescribed progression.

Alternatives to explore

STARK is a strength training tracker for iPhone and Apple Watch. Log sets, repetitions and weights, then follow your progress. Core features are free. Explore STARK’s features