30-minute walking routine uses brisk pace changes to burn more calories than jogging after 40, and stays joint-friendly.

Walking is one of the simplest and most effective ways to incorporate regular exercise into your daily routine. It is as simple as it sounds - no fancy equipment or specific techniques to master it.

The run/walk method has been around since the 1970s, and it has surged in popularity as more athletes learn that regular walk intervals may help you run longer—and faster. Olympic marathoner and ...