While a lot of effective core exercises have you working out on a mat on the floor, there are other loftier options. Just look up to add some variety to your core routine, and try a hanging leg raise.

I HAVE A bad workout habit: I constantly skip my abs. I plan to tack sets of core-centric exercises on to the end of my gym sessions, but my impatience wins out. The clock seems to tick louder and my ...