Seated balance ball exercises are a great way to improve posture and core strength. These exercises use the instability of a balance ball to engage muscles that support the spine, promoting better ...

At work, Pam O’Donnell types at her computer, talks on the phone and, every so often, bounces a bit on a big blue ball. O’Donnell has an office chair, but this doesn’t mean she uses it. She prefers to ...