Oblique Crunch vs Hollow
Which one fits your Core workout plan?
Contents
Planfit users log Oblique Crunch more often — 963 sessions vs 426. Compare Core form, muscles worked, and when to use each.
Compare the benefits of Oblique Crunch and Hollow and pick the one that fits your Core workout.
Oblique Crunch vs Hollow: Which Do Planfit Users Choose?
Based on randomly selected data from 1 million completed workouts, Planfit users log Oblique Crunch more often — 963 sessions compared to 426 for Hollow.
What most people do isn't always what fits you. Oblique 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 Oblique Crunch and Hollow Differ
| What differs | Oblique Crunch | Hollow |
|---|---|---|
| Muscles worked | abs | abs and quads |
| One side at a time | Yes | No |
| Difficulty | 2 of 5 | 5 of 5 |
| Sessions logged by Planfit users | 963 sessions | 426 sessions |
How to Do Oblique Crunch
Oblique Crunch Muscles Worked: Core
Form
- 1. Lift your upper body to the side and contract your side.
- 2. Slowly return to the starting position.
Coach's Tips
- 1. Without raising your upper body using the arm placed on the floor, lift your upper body using your core strength.
- 2. If you excessively bend your neck or use momentum, it can strain your neck or lower back.
- 3. If the movement is difficult, adjust the height you lift and perform the exercise gently.
For a full Oblique Crunch guide with alternatives and benefits, see the Oblique 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, Oblique Crunch or Hollow?
Planfit users log Oblique Crunch more often — 963 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 Oblique Crunch and Hollow work the same muscles?
Not quite. Oblique Crunch loads abs, and Hollow loads abs and quads.
What equipment do Oblique Crunch and Hollow need?
Oblique Crunch needs bodyweight only, and Hollow needs bodyweight only.
Which is easier to start with?
Oblique Crunch is the easier place to start. Move to Hollow once your form holds up.
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