Stability Ball Medicine Ball Curl — start position
Start
Stability Ball Medicine Ball Curl — end position
End

Arms / Beginner / Isolation (single joint)

Stability Ball Medicine Ball Curl

A one-arm curl with a medicine ball while seated on a stability ball, training the biceps and grip with a balance demand.

At a glance

Primary
Biceps
Secondary
Forearms & grip, Abs
Equipment
Medicine ball, Stability ball
Movement pattern
Elbow flexion (curl), Grip
Level
Beginner
Type
Arms, Isolation (single joint), One side at a time, Balance / unstable

How to do it

  1. Sit tall on a stability ball with feet firmly on the floor.
  2. Hold a medicine ball in one hand with fingers spread, arm extended down at your side.
  3. Curl the ball up toward your shoulder while keeping your elbow at your side.
  4. Lower slowly and repeat; switch arms.

Tips

  • Keep your abs braced to stay balanced on the ball.

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Muscles worked

Neck (Front)Upper traps (Front)Front delts (Front)Side delts (Front)Chest (Front)Serratus anterior (Front)Biceps — primary (Front)Forearms & grip — secondary (Front)Abs — secondary (Front)Obliques (Front)Hip flexors (Front)Quads (Front)Adductors (Front)Shins (tibialis) (Front)Calves (Front)Outer shins (peroneals) (Front)Feet (arch & toes) (Front)Neck (Back)Upper traps (Back)Upper back (rhomboids, mid/lower traps) (Back)Rear delts (Back)Side delts (Back)Rotator cuff (Back)Lats (Back)Lower back (erectors) (Back)Triceps (Back)Forearms & grip — secondary (Back)Hip abductors (glute med) (Back)Glutes (Back)Hamstrings (Back)Adductors (Back)Calves (Back)
FrontBack
  • Primary: Biceps
  • Secondary: Forearms & grip, Abs

Best for

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Illustration: Everkinetic (everkinetic.com), CC BY-SA 4.0.