One of the best things about exercise balls, sometimes referred to as swiss balls or physio balls, is the fact that they are so accessible. The cost of these balls has come down dramatically, and you can buy them in most drug stores and supermarkets, so there really is no excuse for not having one around.
Another great thing about these balls is the fact that there are so many beneficial exercises you can do with them, from rehabilitation to elite athletic conditioning. When I’m working with athletes I’ll often challenge them by having them perform focused positional stability exercises on the ball, which can be very difficult and a far cry from the kind of training they’re used to.
This week I want to focus on using the balls for active sitting exercises. By active sitting I’m referring to a state where the exerciser is holding a strong, seated position, engaging the core and hip musculature to maintain neutral pelvis and spine. This simple, yet challenging, practice can be very physically taxing when performed on an exercise ball, which tends to wiggle and roll around. This instability often leads to weakness in the involved musculature and loss of control.
By learning to engage the right muscles and systems, it’s possible to establish stability and control, even in the least predictable environment. This is beneficial for anyone, no matter how active you are and can make the difference between success and failure in sport and between health and injury in life.
Although the following exercises aren’t high-intensity or dynamic, they still require the engagement of many muscles along your spine. Be sure to get your physician’s approval for any change in your exercise routine.
Active Sitting – Neutral

I’d like to start this series by reminding you that these kinds of exercises give back as much as you put into them. There’s no sense spending the time on an exercise without really trying to perform it properly. By putting anything less than full effort into the quality of your movements, or the control of your body, you’ll just be repeating faulty movement patterns and ensuring that you don’t really see any significant improvement. I don’t know about you, but a lack of improvement can be frustrating for most people I know.
For this active sitting series, find an exercise ball that is about as tall as your lower legs are long. For most shorter people this is a 45cm ball, while taller people can use 55cm or even 65cm balls. Ideally your legs are bent at approximately 90˚ when you’re perched on top of the ball with your feet flat on the floor. Keep your feet no more than a few inches apart the first few times you try this exercise.
Start by sitting tall with your body in the best neutral sitting position you can, with your knees at 90˚ and core engaged. Hold a small medicine ball at arms length in front of your body to engage your posterior core and spinal muscles, and be sure to maintain a deep core contraction as you hold this position. Think about using your hip and glute musculature to grab the ball and hold it still. If this basic starting position is easy, slowly extend one leg out in front of you while holding your alignment.
Active Sitting – Extension

This version of the active sitting exercise targets one of the most important areas that you need to control for good posture and structural support, as well as overall physical health. The muscles along the length of your upper spine help to hold you upright and balance against the forces of gravity (and desk work!). Start in the active sitting position describe earlier, either keeping both feet on the floor, or extending one leg forward while holding your balance. Keeping the medicine ball extended in your arms in front of your body, with your shoulders relaxed and not pinched up by your ears, slowly raise your arms overhead, focusing on extending your upper spine to a nice, tall position. Slowly lower the ball and then raise it again. As you develop better control, move the ball more quickly.
Active Sitting – Rotation

Anyone who plays rotational sports like tennis or golf will benefit greatly from this exercise. Begin in the active sitting position with the medicine ball held directly in front of you. Keeping your pelvis stable and square, rotate your ribcage, shoulders and arms to one side. Moving the medicine ball off-center in relation to the exercise ball raises the instability and level of difficulty, especially if you have one leg off the floor as shown. Rotate to one side, then the other, working for equal range of motion to both sides. Start slowly and gradually increase your speed, while maintaining strong core recruitment.
- Rob Williams is a kinesiologist, elite personal trainer and posture specialist. He has been practicing for 20 years and currently operates an exclusive private training studio Mixx Fitness Studio, with a team of 10 trainers, as well as a multi-disciplinary posture facility, Performance Posture Clinic. Rob’s parent company is Williams Health Group. Rob is an accomplished writer and speaker in the fields of fitness, posture and nutrition. He is a sought-after posture and performance coach for professional and amateur athletes and celebrities.





