Exercise guide
Roll Ball Bicep Brachii
- Beginner
- Isolation
- Timed hold
- Shoulders
- Upper arms
This unilateral isolation exercise uses a medicine ball against a wall to provide constant tension on the biceps while improving shoulder stability. It is highly effective for developing mind-muscle connection and maintaining peak contraction throughout the range of motion.
Reviewed by the Crucible team · Updated June 2026
Muscles worked
Setup
- Stand facing a wall with your feet shoulder-width apart and a slight bend in your knees.
- Hold a medicine ball against the wall at chest height with one hand, palm facing up (supinated).
- Position your elbow slightly in front of your torso and keep your non-working hand on your hip for balance.
- Apply firm pressure against the ball to secure it against the wall.
How to do it
- Exhale and slowly roll the ball up the wall by flexing your elbow, bringing the ball toward your shoulder.
- Squeeze your bicep hard at the top of the movement for one second.
- Inhale and slowly roll the ball back down to the starting position, maintaining constant pressure against the wall.
- Complete all reps on one arm before switching to the other side, maintaining a controlled 2-1-2-0 tempo.
Form checklist
- Keep your elbow pinned in a fixed position to ensure the bicep does the work.
- Maintain constant inward pressure against the ball to prevent it from slipping.
- Keep your wrist neutral and firm throughout the entire movement.
- Ensure your torso remains upright and avoid leaning into the wall or using momentum.
Pro tips
- Focus on 'crushing' the ball against the wall to increase muscle fiber recruitment through irradiation.
- Visualize your forearm closing the gap to your bicep to maximize the peak contraction at the top.
Make it harder
- Use a heavier medicine ball to increase the resistance and the stability demand on the shoulder.
- Perform the exercise while standing on the opposite leg to challenge your core and balance.
Frequently asked
- What muscles does the roll ball bicep brachii work?
- The roll ball bicep brachii primarily targets the biceps, and also works the forearms as secondary muscles.
- What equipment do you need for the roll ball bicep brachii?
- The roll ball bicep brachii uses medicine ball.
- Is the roll ball bicep brachii good for beginners?
- Yes. The roll ball bicep brachii is a beginner-friendly movement and a strong foundation to build on.