# Bicycle Crunch

> A floor crunch where you pedal your legs and turn your elbow toward the opposite knee, training your obliques and abs.

Page: https://fitnessie.app/exercises/bicycle-crunch/
Type: Bodyweight · Core
Demo video: https://fitnessie.app/demos/bicycle-crunch/78a5038e0830d059.mp4

## How to do it

1. Lie on your back with your hands behind your head and your legs raised off the floor.
2. Lift your head and shoulders off the floor.
3. Draw one knee toward your chest and straighten the other leg out above the floor.
4. Turn your trunk to bring the opposite elbow toward the bent knee.
5. Switch sides in a steady pedaling motion.

## Key cues

- Support your head, don't pull on it
- Turn from the trunk, not the hips
- Low back stays pressed into the floor
- Steady, controlled rhythm

## Common mistakes

- Yanking the head forward with your hands
- Rotating from the hips instead of the shoulders
- Rushing the pedaling so each rep loses control

## Muscles worked

- Primary: Obliques
- Secondary: Abs and hip flexors

## Equipment

Exercise mat.

## References

- [StrengthLog: Bicycle Crunch](https://www.strengthlog.com/bicycle-crunch/)
- [ACE: Supine Bicycle Crunches](https://www.acefitness.org/resources/everyone/exercise-library/241/supine-bicycle-crunches/)