Leg Extension primarily works the quadriceps. It is categorized as a squat movement and uses Machine.
- Primary muscles
- quadriceps
- Equipment
- Machine
- Movement pattern
- squat
- Catalog difficulty
- 1 of 5
How to do Leg Extension
- Toes neutral, extend to straight
- Squeeze the quad at the top, slow on the way down
Common mistakes
- Slamming the weight down
- Using the whole body to swing it up
Muscles worked
The primary catalog target is quadriceps. Exercise feel varies with setup, range of motion, and individual anatomy.
Easier and harder options
Easier option: Split Squat
Related exercises and substitutions
A useful substitute should preserve the job this movement has in the session—not merely train a nearby body part. Explore the related Movviva guides below, then compare pattern, target muscles, available equipment, and difficulty.
Split Squat · Step-Down (Control) · Split Squat · Leg Press · Box Squat (Bodyweight) · Goblet Squat
Put Leg Extension into a plan that adapts.
Movviva builds strength, mobility, and conditioning around your goal, schedule, equipment, and completed training—then gives you the next workout with guided targets and smart swaps.