Exercise · squat
Leg extension
Leg extension is a beginner-friendly squat movement that trains quads, done with a machine. It's an isolation-style movement — useful for targeted work once the bigger compound lifts are done. Typical rep range is 12–20 reps, tempo 2-1-1.
The most common mistake is kicking the weight up with momentum. If a machine or the movement itself doesn't suit you, Wall sit or Split squat or Leg press cover the same pattern. It's usually held back for knee issues — a coach or the substitution list is the safer route on a flare-up.
Form cues
| # | English | हिंदी |
|---|---|---|
| 1 | Knee joint aligned with the machine pivot | घुटना मशीन के जोड़ की सीध में |
| 2 | Extend fully and squeeze the quad for a second | पूरा ऊपर करके एक सेकंड रोको |
| 3 | Lower slowly; no swinging | धीरे नीचे जाओ, कंट्रोल से |
Equipment & who it fits
Needs a machine, rated beginner, held back for knee issues. Search "leg extension form" for a form video.
Substitutes
Programs that use this pattern
Questions people ask
- What muscles does Leg extension work?
- Leg extension primarily trains quads, using a squat pattern with a machine.
- What's the most common mistake with Leg extension?
- Kicking the weight up with momentum
- What can I do instead of Leg extension?
- The closest substitutes in this database are wall sit, split squat bodyweight, leg press, which train the same pattern with different equipment.