Illustration of Knee Extension with the Exercise Ball
This is a good ball exercise that allows you to feel how your spine reacts to an
exercise. Like the leg raise exercise on the floor, this ball exercise forces
you maintain a stable core while moving a limb.
Use the position of your lower back against your hands for feedback as to the position of your lumbar spine. As your ball moves your lower back should remain still. If your lower back moves, try using smaller movements or performing the exercise without the ball until you gain control.
Repeat this ball exercise 6 times.
Repeat this ball exercise 10 times.
Repeat this ball exercise 15 times.
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