Also known as a stability ball or exercise ball, a yoga ball is often used during exercise routines to help expand range of motion and improve balance.
Here are a few other ways they Improve Your Dryland workouts...
Core Development- Used during workouts activates core to maintain stability.
Better Posture- The instability of the Yoga ball obliges you to change position frequently, so that you become aware of your posture.
BACK AND SPINE HEALTH- supports your lower back when you stretch and exercise.
Improve Balance- just sitting on a stability ball engages your stabilizer muscles.
Improves proprioception- body awareness as it moves in space.