A stability ball adds an unstable surface that challenges balance, coordination and the smaller muscles that support larger movements. The original selection includes:
- Wall squat
- Single-leg wall squat
- Balancing reverse lunge
- Balancing push-up
- Plank to pike
- Ball pass
- Balancing oblique crunch
- Glute bridge to hamstring curl
- Lower-back extension
Use a clear area, choose the right ball size and progress from stable variations before adding speed or range.

