Leg Raise vs Seated Knee Up
Which one fits your Core workout plan?
Contents
Planfit users log Leg Raise more often — 26,383 sessions vs 9,913. Compare Core form, muscles worked, and when to use each.
Compare the benefits of Leg Raise and Seated Knee Up and pick the one that fits your Core workout.
Leg Raise vs Seated Knee Up: Which Do Planfit Users Choose?
Based on randomly selected data from 1 million completed workouts, Planfit users log Leg Raise more often — 26,383 sessions compared to 9,913 for Seated Knee Up.
What most people do isn't always what fits you. Leg Raise and Seated Knee Up differ in the muscles they work, the equipment they need, and how hard they are to learn — the comparison below covers each.
How Leg Raise and Seated Knee Up Differ
| What differs | Leg Raise | Seated Knee Up |
|---|---|---|
| Muscles worked | abs and quads | abs |
| Difficulty | 2 of 5 | 2 of 5 |
| Sessions logged by Planfit users | 26,383 sessions | 9,913 sessions |
How to Do Leg Raise
Leg Raise Muscles Worked: Core
Form
- 1. Slightly bend your knees and lift your legs so that they are vertical to the floor.
- 2. Slowly return to the starting position.
Coach's Tips
- If your back hurts, you can place your hands under your hips to prevent your back from arching.
For a full Leg Raise guide with alternatives and benefits, see the Leg Raise exercise guide.
How to Do Seated Knee Up
Seated Knee Up Muscles Worked: Core
Form
- 1. Lift your lower body so that your knees and chest come closer together.
- 2. Allow your upper body to naturally lean forward so that your core can contract.
- 3. Slowly return to the starting position.
Coach's Tips
- If it's too difficult, try proceeding with your knees bent.
For a full Seated Knee Up guide with alternatives and benefits, see the Seated Knee Up exercise guide.
Frequently Asked Questions
Which is better for Core, Leg Raise or Seated Knee Up?
Planfit users log Leg Raise more often — 26,383 sessions against 9,913 for Seated Knee Up. Both train Core, so pick the one that matches the equipment you have and the muscles you want to load.
Do Leg Raise and Seated Knee Up work the same muscles?
Not quite. Leg Raise loads abs and quads, and Seated Knee Up loads abs.
What equipment do Leg Raise and Seated Knee Up need?
Leg Raise needs bodyweight only, and Seated Knee Up needs bodyweight only.
Stop Guessing Which One to Do
AI picks your workouts based on your goals, body type, and experience.
