After 50, that stubborn belly fat seems to cling on tighter than ever, and the thought of getting down on the floor for traditional ab exercises can feel daunting—or downright impossible. Between ...

A 7-minute chair routine to help strengthen your core after 60, from a dietitian and certified trainer Jennifer Scherer.

Set a timer for 10 minutes. Perform each exercise for 45 seconds, then use about 15 seconds to switch positions and reset.