Seated Leg Curl

A beginner isolation strength exercise that works the hamstrings, using a machine.

Seated Leg Curl — Starting position Starting position
Seated Leg Curl — End position End position
Difficulty Beginner
Type Strength
Equipment Machines
Primary Muscle Hamstrings
AI Rep Counting Log manually

How to Do Seated Leg Curl

  1. Adjust the machine lever to fit your height and sit on the machine with your back against the back support pad.
  2. Place the back of lower leg on top of padded lever (just a few inches under the calves) and secure the lap pad against your thighs, just above the knees. Then grasp the side handles on the machine as you point your toes straight (or you can also use any of the other two stances) and ensure that the legs are fully straight right in front of you. This will be your starting position.
  3. As you exhale, pull the machine lever as far as possible to the back of your thighs by flexing at the knees. Keep your torso stationary at all times. Hold the contracted position for a second.
  4. Slowly return to the starting position as you breathe in.
  5. Repeat for the recommended amount of repetitions.

Muscles Worked

Back

Primary

Where Seated Leg Curl does most of its work.

Alternatives to Seated Leg Curl

10 movements that train the same primary muscle, closest substitutes first — same kind of training, then variations of the movement itself, then a similar difficulty.

  1. 1 Ball Leg Curl

    Ball Leg Curl

    A beginner isolation strength exercise that works the hamstrings, using an exercise ball.

    beginner Exercise Ball
  2. 2 Seated Band Hamstring Curl

    Seated Band Hamstring Curl

    A beginner isolation strength exercise that works the hamstrings.

    beginner Not specified
  3. 3 Standing Leg Curl

    Standing Leg Curl

    A beginner isolation strength exercise that works the hamstrings, using a machine.

    beginner Machines
  4. 4 Lying Leg Curls

    Lying Leg Curls

    A beginner isolation strength exercise that works the hamstrings, using a machine.

    beginner Machines
  5. 5 Platform Hamstring Slides

    Platform Hamstring Slides

    A beginner isolation strength exercise that works the hamstrings.

    beginner Not specified
  6. 6 Prone Manual Hamstring

    Prone Manual Hamstring

    A beginner isolation strength exercise that works the hamstrings.

    beginner Not specified
  7. 7 Stiff-Legged Dumbbell Deadlift

    Stiff-Legged Dumbbell Deadlift

    A beginner compound strength exercise that works the hamstrings, using dumbbells.

    beginner Dumbbells
  8. 8 Smith Machine Stiff-Legged Deadlift

    Smith Machine Stiff-Legged Deadlift

    A beginner compound strength exercise that works the hamstrings, using a machine.

    beginner Machines
  9. 9 Alternating Hang Clean

    Alternating Hang Clean

    An intermediate compound strength exercise that works the hamstrings, using a kettlebell.

    intermediate Kettlebell
  10. 10 Deadlifts

    Deadlifts

    The deadlift is a fundamental compound exercise that builds strength across the entire posterior chain. It's one of the best movements for developing raw strength, muscle mass, and functional fitness.

    intermediate Barbell

Frequently Asked Questions

What muscles do seated leg curl work?

Seated Leg Curl primarily works the hamstrings.

What equipment do I need for seated leg curl?

Seated Leg Curl uses machines.

Seated Leg Curl: is it suitable for beginners?

Yes. Seated Leg Curl is rated beginner. Movements you can learn in a session, with a low skill floor and a forgiving failure mode.

What can I do instead of seated leg curl?

Ball Leg Curl, Seated Band Hamstring Curl, Standing Leg Curl train the same primary muscles and are listed with 7 more alternatives above.

Can Fitnit count my seated leg curl reps automatically?

Not automatically yet. Fitnit's AI rep counting covers push-ups, squats, dumbbell curls, crunches and pull-ups today; seated leg curl can be logged manually in the app, and tracked movements are added over time.

Photographs and step-by-step instructions from free-exercise-db, a public-domain exercise dataset. Muscle mapping and alternatives by Fitnit.

Track Your Seated Leg Curl with AI

Fitnit automatically tracks push-ups, crunches, squats, pull-ups, and curls with advanced body tracking technology — and you can manually input any other workout too. Start free — Pro is $8.99/month.