Seated leg curl
Knee aligned with pivot, thigh pad locked, toes relaxed.
family=leg curlpattern=knee flexionforce=pullmechanic=isolationequipment=machine
Muscles
- Primary
- hamstrings
- Supporting
- None listed
Mechanics
- Pattern
- knee flexion
- Equipment
- machine
- Geometry
- Variable Range
- Target feel
- Hamstrings pull the pad down without hips lifting.
- Progression
- Add slow eccentric before adding stack weight.
- Regression
- Reduce range if cramping or hip lift appears.
Watch for
- Seat set too far
- Rushing the eccentric
Equipment context
The machine fixes the movement path, reducing stabilizer demand and letting you focus on the target muscle.
Substitutions
- Lying leg curl
- Slider leg curl
- Nordic curl
Related exercises
Progression ladder
- Beginner / regression: Reduce range if cramping or hip lift appears.
- Standard: Seated leg curl
- Advanced / progression: Add slow eccentric before adding stack weight.
Atlas metrics
- Movement pattern
- knee flexion
- Primary target
- hamstrings
- Supporting muscles
- None listed
- Equipment
- machine
- Joint geometry
- Variable Range
- Alternatives
- 3 substitutions
Evidence & limits
Last reviewed against peer-reviewed biomechanics references. Exercise descriptions are framed as training guidance, not medical advice.
Source: ExRx.net Exercise & Muscle Directory
Eccentryx is fitness software. It is not a medical device and is not intended to diagnose, treat, cure, or prevent any disease, injury, or medical condition. Consult a licensed physician before beginning any exercise program.
Try these tools
FAQ
- How do I set up Seated leg curl?
- Knee aligned with pivot, thigh pad locked, toes relaxed.
- What should I feel during Seated leg curl?
- Hamstrings pull the pad down without hips lifting.
- What are common mistakes with Seated leg curl?
- Seat set too far; Rushing the eccentric
- How do I progress Seated leg curl?
- Add slow eccentric before adding stack weight.
- What can I do instead of Seated leg curl?
- Lying leg curl, Slider leg curl, Nordic curl

Seated leg curl: isolation pattern, 2000 ms rep trace, engine-derived.
