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Claims: "Patented design promotes correct posture and improves circulation... Adjustable padded back adds more comfort and ergonomic back support while the ball cushions the spine."
Expert Opinion: Compared to a standard chair, this Gaiam Balance Ball Chair is way more functional due to the three-dimensional stabilization and balance, Gilles says. "By adding the balance component, you will engage more muscles and create more blood flow. When you engage more muscles, specifically your anterior and posterior core, you will strengthen the muscles that help with posture," he says. "Anytime you start using a new product that recruits more muscles, it is important to ease into it rather than use it for an entire day." But Gilles warns, this should not be the end all, be all. "Like anything you do over and over again, you will build up a tolerance, which means you should continue to do other workouts for your core and structural properties."
Experts reveal the truth about seemingly ridiculous exercise gadgets