How far you go in these long runs depends on your skill and experience, but Mackey says 45 minutes is a good starting point ...

Learn more about this metric and the best training sessions to add to your schedule to boost your cardio fitness.

Let’s travel back to the Paris Olympics—the women’s marathon event in particular. Twenty kilometers into the race, Sifan Hassan of the Netherlands was holding her pace and biding her time. “The moment ...

“The word aerobic, quite literally, refers to exercise with oxygen,” Juli Benson, Olympian and run coach, previously told Runner’s World. Aerobic exercise is long, slow, easy running where your body ...

Training to run faster is a common issue for people serving in the military. The timed runs in semi-annual fitness tests are challenging, especially for military members who consider 1.5-2 miles "long ...