Fitness balls, sometimes called physio balls or Swiss balls—are large, vinyl balls that can be used to aid exercise. They help strengthen the muscles in your abdomen and back, improve core stability, and balance. They can also help reduce stiffness, decrease fatigue, and improve strength in your muscles.
Core-strength exercises strengthen your core muscles, including your abdominal muscles, back muscles and the muscles around the pelvis. You can do many core-strength exercises with a fitness ball.
Use a fitness ball sized so that your knees are at a right angle when you sit on the ball with your feet flat on the floor. Do each core-strength exercise five times. As you get stronger, gradually increase to 10 to 15 repetitions. Breathe freely and deeply and focus on tightening your abs during each core-strength exercise. If you have back problems, osteoporosis or any other health concern, talk to your doctor before doing these core-strength exercises.
To work various core muscles in combination for better core strength, try a bridge with the fitness ball:
To do a squat and reach exercise with the fitness ball: