"It is concluded that the advantages with respect to physical loading of sitting on an exercise ball may not outweigh the disadvantages," the researchers wrote.

"It is concluded that the advantages with respect to physical loading of sitting on an exercise ball may not outweigh the disadvantages," the researchers wrote." http://lifehacker.com/5645943/exercise-balls-might-not-be-the-best-posture-fixers http://lifehacker.com/5645943/exercise-balls-might-not-be-th...