Leg Curl vs One Leg Knee Up
Which one fits your Leg workout plan?
Contents
Planfit users log Leg Curl more often — 39,860 sessions vs 1,113. Compare Leg form, muscles worked, and when to use each.
Compare the benefits of Leg Curl and One Leg Knee Up and pick the one that fits your Leg workout.
Leg Curl vs One Leg Knee Up: Which Do Planfit Users Choose?
Based on randomly selected data from 1 million completed workouts, Planfit users log Leg Curl more often — 39,860 sessions compared to 1,113 for One Leg Knee Up.
What most people do isn't always what fits you. Leg Curl and One Leg 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 Curl and One Leg Knee Up Differ
| What differs | Leg Curl | One Leg Knee Up |
|---|---|---|
| Muscles worked | hamstrings and calves | quads, abs, and hamstrings |
| Equipment | a machine | bodyweight only |
| One side at a time | No | Yes |
| Difficulty | 1 of 5 | 2 of 5 |
| Sessions logged by Planfit users | 39,860 sessions | 1,113 sessions |
How to Do Leg Curl
Leg Curl Muscles Worked: Leg
Form
- 1. Engage your hamstrings and glutes, and lift the ankle pads up to your hips.
- 2. Lower down only until your knees are fully extended against the weight resistance.
Coach's Tips
- 1. Please be careful not to fully extend your knees.
- 2. Please be careful not to lift your upper body.
For a full Leg Curl guide with alternatives and benefits, see the Leg Curl exercise guide.
How to Do One Leg Knee Up
One Leg Knee Up Muscles Worked: Leg
Form
- 1. Lift one knee forward and touch it with both hands.
- 2. Please do the same on the other side.
Coach's Tips
- Please be careful not to let your legs spread apart.
For a full One Leg Knee Up guide with alternatives and benefits, see the One Leg Knee Up exercise guide.
Frequently Asked Questions
Which is better for Leg, Leg Curl or One Leg Knee Up?
Planfit users log Leg Curl more often — 39,860 sessions against 1,113 for One Leg Knee Up. Both train Leg, so pick the one that matches the equipment you have and the muscles you want to load.
Do Leg Curl and One Leg Knee Up work the same muscles?
Not quite. Leg Curl loads hamstrings and calves, and One Leg Knee Up loads quads, abs, and hamstrings.
What equipment do Leg Curl and One Leg Knee Up need?
Leg Curl needs a machine, and One Leg Knee Up needs bodyweight only.
Which is easier to start with?
Leg Curl is the easier place to start. Move to One Leg Knee Up once your form holds up.
Stop Guessing Which One to Do
AI picks your workouts based on your goals, body type, and experience.
