Bicycle Crunch vs Hollow
Which one fits your Core workout plan?
Contents
Planfit users log Bicycle Crunch more often — 11,785 sessions vs 426. Compare Core form, muscles worked, and when to use each.
Compare the benefits of Bicycle Crunch and Hollow and pick the one that fits your Core workout.
Bicycle Crunch vs Hollow: Which Do Planfit Users Choose?
Based on randomly selected data from 1 million completed workouts, Planfit users log Bicycle Crunch more often — 11,785 sessions compared to 426 for Hollow.
What most people do isn't always what fits you. Bicycle Crunch and Hollow differ in the muscles they work, the equipment they need, and how hard they are to learn — the comparison below covers each.
How Bicycle Crunch and Hollow Differ
| What differs | Bicycle Crunch | Hollow |
|---|---|---|
| Muscles worked | abs and glutes | abs and quads |
| Difficulty | 2 of 5 | 5 of 5 |
| Sessions logged by Planfit users | 11,785 sessions | 426 sessions |
How to Do Bicycle Crunch
Bicycle Crunch Muscles Worked: Core
Form
- 1. Lift your upper body so that one elbow touches the opposite knee.
- 2. Slowly return to the starting position.
- 3. Lift your upper body so that the opposite elbow touches the other knee.
- 4. Slowly return to the starting position.
Coach's Tips
- Maintain tension in your abdomen and be careful not to strain your neck.
For a full Bicycle Crunch guide with alternatives and benefits, see the Bicycle Crunch exercise guide.
How to Do Hollow
Hollow Muscles Worked: Core
Form
- 1. Lift your upper body while keeping your feet off the ground.
- 2. Hold while engaging your core.
Coach's Tips
- In the holding position, only your hips should be touching the ground.
For a full Hollow guide with alternatives and benefits, see the Hollow exercise guide.
Frequently Asked Questions
Which is better for Core, Bicycle Crunch or Hollow?
Planfit users log Bicycle Crunch more often — 11,785 sessions against 426 for Hollow. Both train Core, so pick the one that matches the equipment you have and the muscles you want to load.
Do Bicycle Crunch and Hollow work the same muscles?
Not quite. Bicycle Crunch loads abs and glutes, and Hollow loads abs and quads.
What equipment do Bicycle Crunch and Hollow need?
Bicycle Crunch needs bodyweight only, and Hollow needs bodyweight only.
Which is easier to start with?
Bicycle Crunch is the easier place to start. Move to Hollow once your form holds up.
Stop Guessing Which One to Do
AI picks your workouts based on your goals, body type, and experience.

