Because being hunched over on the bike for long periods of time can mess with our backs.

Enter any gym, and you'll see the same core workout: crunches, situps, ab machines, and endless twisting exercises. The logic seems obvious—if you want stronger abs, more visible abs, you train them ...

A CSCS coach shares 6 standing core exercises after 50 that build strength and balance with no crunches or floor work.