By
eHow Sports & Fitness Editor
Difficulty: Moderately Easy
Step1
Purchase a stability ball. Stability balls are commonly found in sporting goods stores, big box stores and in many online stores. They come in three sizes (55 cm, 65 cm and 75 cm) and are also called Swiss balls, exercise balls and body balls. 65-cm stability balls are the most commonly used by pregnant women.
Step2
Inflate the stability ball using the manual pump that typically comes standard with purchase. Stability balls become harder to use the more they are inflated. Begin with the ball partially inflated. Add more air as you become more accustomed to using the ball.
Step3
Balance on the stability ball with feet flat against the floor and arms at your side. Bouncing on the ball and rolling your hips will help you become accustomed to sitting on it.
Step4
Practice lifting one leg and one arm at a time from the sitting position while maintaining your balance. Alternate legs and arms for multiple reps. This will help work the muscles in your limbs while improving your balance.
Step5
Move into a lying position from the sitting position on the ball by walking your feet forward slowly until your back is resting on the ball.
Step6
Exercise abdominal muscles by doing crunches on the stability ball. These are much the same as traditional crunches on the floor. With hands behind the head, use your abdominal muscles to lift your shoulders off the ball.
Step7
Use your stability ball to support your back in other exercises like bridges and squats.