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Reviewed March 2026

Stability Ball Curl

HamstringsStability BallIntermediateIsolation

Primary

Hamstrings

Secondary

Glutes, Core

Equipment

Stability Ball

Difficulty

Intermediate

Type

Pull

Written byMySetPlan Training Team

NASM-CPT, CSCS certified trainers. Every guide is built from peer-reviewed research and real coaching experience.

The Stability Ball Curl is a isolation pulling movement that primarily targets your hamstrings. Use when no leg curl machine available.

Everything You Need to Know About the Stability Ball Curl

The Stability Ball Curl is a intermediate difficulty exercise that targets your Hamstrings. It's a popular choice for building strength and muscle in these areas. When should you use it? Use when no leg curl machine available. This timing makes the most of your workout and helps you get better results. Who is this for? All levels with stability ball access. Whether you're just starting out or working toward a specific goal, this exercise fits into your routine.

What muscles does the Stability Ball Curl work?

Primary

Hamstrings

Secondary

Gluteus maximusCore

Stabilizers

Hip stabilizers

Step-by-step: Stability Ball Curl

  1. 1

    Lie on back with heels on stability ball.

  2. 2

    Lift hips off floor into bridge position.

  3. 3

    Curl heels toward glutes, rolling ball in.

  4. 4

    Squeeze hamstrings at peak contraction.

  5. 5

    Extend legs to roll ball back out.

  6. 6

    Keep hips elevated throughout.

What are the best tips for the Stability Ball Curl?

Great for hamstring activation.

Also works glutes and core.

Squeeze hamstrings hard at top.

Mistakes to watch for on the Stability Ball Curl

Dropping hips during curl.

Losing hip position during the Stability Ball Curl shifts the loading pattern away from your Hamstrings and can compress your lower back. Stay planted and let your Hamstrings do the work.

Not full range of motion.

Cutting the range of motion short on the Stability Ball Curl means your Hamstrings never reaches full stretch or full contraction. Research shows full range of motion produces significantly more muscle growth than partial reps at the same load.

Rolling too fast for optimal results.

Rushing through the Stability Ball Curl reduces the time your Hamstrings spends under tension — which is one of the main drivers of growth. Aim for a controlled 2-second lowering phase on every rep.

Who should do the Stability Ball Curl?

All levels with stability ball access.

How to Program the Stability Ball Curl

Strength6-10 reps

Lower reps with heavier weight builds raw strength. Your muscles and nervous system adapt to handle more load over time. This range is best for strength-focused goals.

Muscle Growth10-15 reps

This rep range keeps your muscles under tension long enough to trigger growth. Most people see the best muscle-building results in this zone. It balances strength and muscle size.

Endurance15-20 reps

Higher reps with lighter weight builds muscular endurance and improves conditioning. This range is good for joint health and building work capacity.

General guideline: 3 sets of 12-15 reps. Rest 60 seconds.

What are good alternatives to the Stability Ball Curl?

Other Variations

  • Single Leg Stability Ball Curl
  • Stability Ball Hip Bridge

This Exercise Is in Your Plan

MySetPlan picks the right exercises for your goals — like the Stability Ball Curl — and builds them into a monthly program. Every set, every rep, planned out.

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Safety Notes

  • Use appropriately sized ball.
  • Keep hips elevated.