Q. Is it worthwhile to invest in ball chairs?

There is a mountain of evidence suggesting that utilizing an exercise ball in place of a standard (ergonomically correct) office chair is more likely to do harm than good hence most specialists advise against the practice. "The usage of stability balls as a chair may actually raise the chance of developing low back discomfort and may increase the danger of sustaining an injury due to the unstable nature of the balls" claims the Centre of Research Expertise for the Prevention of Musculoskeletal Disorders. The muscular activation characteristics of all 14 muscles were similar whether the subjects sat on a stool or a ball according to another study.