Sit Up vs Hollow
Which one fits your Core workout plan?
Contents
Planfit users log Sit Up more often — 3,693 sessions vs 426. Compare Core form, muscles worked, and when to use each.
Compare the benefits of Sit Up and Hollow and pick the one that fits your Core workout.
Sit Up vs Hollow: Which Do Planfit Users Choose?
Based on randomly selected data from 1 million completed workouts, Planfit users log Sit Up more often — 3,693 sessions compared to 426 for Hollow.
What most people do isn't always what fits you. Sit Up 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 Sit Up and Hollow Differ
| What differs | Sit Up | Hollow |
|---|---|---|
| Muscles worked | abs | abs and quads |
| Difficulty | 2 of 5 | 5 of 5 |
| Sessions logged by Planfit users | 3,693 sessions | 426 sessions |
How to Do Sit Up
Sit Up Muscles Worked: Core
Form
- 1. Please lift your upper body so that you can sit up straight.
- 2. Slowly return to the starting position.
Coach's Tips
- 1. If you have pain in your lower back, avoid sit-ups and substitute with crunches.
- 2. When lifting your upper body, be careful not to overextend your lower back or pull your neck too much.
For a full Sit Up guide with alternatives and benefits, see the Sit Up 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, Sit Up or Hollow?
Planfit users log Sit Up more often — 3,693 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 Sit Up and Hollow work the same muscles?
Not quite. Sit Up loads abs, and Hollow loads abs and quads.
What equipment do Sit Up and Hollow need?
Sit Up needs bodyweight only, and Hollow needs bodyweight only.
Which is easier to start with?
Sit Up is the easier place to start. Move to Hollow once your form holds up.
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