Exercise guide · Intermediate · Compound

Weighted Seated Bicep Curl (On Stability Ball): How to Do It & Muscles Worked

A bicep curl performed while seated on a stability ball, using a medicine ball for resistance. This variation challenges core stability and balance in addition to targeting the biceps.

Primary muscles
Biceps
Secondary muscles
Forearms
Equipment
Medicine Ball
Level · type
Intermediate · Compound
Demonstration of the weighted seated bicep curl (on stability ball)
Front view: muscles worked by the weighted seated bicep curl (on stability ball). Primary: biceps. Secondary: forearms.
Back view: muscles worked by the weighted seated bicep curl (on stability ball). Primary: biceps. Secondary: forearms.
Primary Secondary

How to do the weighted seated bicep curl (on stability ball)

  1. Step 1: Sit on a stability ball with your feet flat on the ground and your back straight.
  2. Step 2: Hold a medicine ball with an underhand grip, palms facing up, and let your arms hang down by your sides.
  3. Step 3: Keeping your upper arms stationary, exhale and curl the medicine ball up towards your shoulders.
  4. Step 4: Pause for a moment at the top, squeezing your biceps.
  5. Step 5: Inhale and slowly lower the medicine ball back down to the starting position.
  6. Step 6: Repeat for the desired number of repetitions.

Sets, reps and programming

Suggested sets, reps and rest for the weighted seated bicep curl (on stability ball) by training goal
Goal Sets Reps Rest Effort
Strength 3–5 3–6 3–5 min 1–3 reps in reserve
Muscle growth 3–4 6–12 2–3 min 1–2 reps in reserve
Muscular endurance 2–3 12–20 1–2 min 1–3 reps in reserve

Ranges follow the ACSM position stand on progression in resistance training. Muscle grows across a wide range of loads when sets end close to failure (Schoenfeld et al., 2017), longer rests between heavy sets support strength and size (Schoenfeld et al., 2016), and stopping a rep or two short of failure works about as well as training to failure (Grgic et al., 2022). Estimate your working weights with the strength calculators.

Weighted Seated Bicep Curl (On Stability Ball) alternatives

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