Ball Leg Curl

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

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

How to Do Ball Leg Curl

  1. Begin on the floor laying on your back with your feet on top of the ball.
  2. Position the ball so that when your legs are extended your ankles are on top of the ball. This will be your starting position.
  3. Raise your hips off of the ground, keeping your weight on the shoulder blades and your feet.
  4. Flex the knees, pulling the ball as close to you as you can, contracting the hamstrings.
  5. After a brief pause, return to the starting position.

Muscles Worked

Front
Back

Primary

Where Ball Leg Curl does most of its work.

Secondary

Assisting and stabilising muscles.

Alternatives to Ball 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 Seated Leg Curl

    Seated Leg Curl

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

    beginner Machines
  2. 2 Standing Leg Curl

    Standing Leg Curl

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

    beginner Machines
  3. 3 Lying Leg Curls

    Lying Leg Curls

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

    beginner Machines
  4. 4 Seated Band Hamstring Curl

    Seated Band Hamstring Curl

    A beginner isolation strength exercise that works the hamstrings.

    beginner Not specified
  5. 5 Platform Hamstring Slides

    Platform Hamstring Slides

    A beginner isolation strength exercise that works the hamstrings.

    beginner Not specified
  6. 6 Smith Machine Stiff-Legged Deadlift

    Smith Machine Stiff-Legged Deadlift

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

    beginner Machines
  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 Prone Manual Hamstring

    Prone Manual Hamstring

    A beginner isolation strength exercise that works the hamstrings.

    beginner Not specified
  9. 9 Alternating Hang Clean

    Alternating Hang Clean

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

    intermediate Kettlebell
  10. 10 Double Kettlebell Alternating Hang Clean

    Double Kettlebell Alternating Hang Clean

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

    intermediate Kettlebell

Frequently Asked Questions

What muscles do ball leg curl work?

Ball Leg Curl primarily works the hamstrings. The calves and glutes assist as secondary muscles.

What equipment do I need for ball leg curl?

Ball Leg Curl uses exercise ball.

Ball Leg Curl: is it suitable for beginners?

Yes. Ball 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 ball leg curl?

Seated Leg Curl, Standing Leg Curl, Lying Leg Curls train the same primary muscles and are listed with 7 more alternatives above.

Can Fitnit count my ball leg curl reps automatically?

Not automatically yet. Fitnit's AI rep counting covers push-ups, squats, dumbbell curls, crunches and pull-ups today; ball 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 Ball 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.