# Single-Leg Leg Extension

URL: https://heatsy.app/ex/single-leg-leg-extension

Also known as: One-Leg Leg Extension, Single-Leg Extension, Unilateral Leg Extension

Body region: Legs

## Muscles

- Main: Rectus Femoris, Vastus Lateralis, Vastus Medialis, Vastus Intermedius
- Holds: Rectus Abdominis, Tensor Fasciae Latae

## Equipment

- Lever Machine

## Technique

1. Adjust the seat so your knees line up with the machine pivot and set the pad above the ankle.
2. Cross the non-working leg behind the pad or rest it on the floor, and hold the handles.
3. Straighten the working knee fully, squeeze the thigh, then lower slowly; finish the reps and switch legs.

### Cues

- Use less weight than with two legs.
- Pause for a moment at the top.

### Common mistakes

- Swinging the weight up with momentum.
- Lifting the hips off the seat.

## Alternatives

- [Leg Extension](https://heatsy.app/ex/leg-extension)
- [Band Leg Extension](https://heatsy.app/ex/band-leg-extension)