Train your body and your mind with this progression track workout that will keep you from losing your composure (and speed) late in the race.

Natural bodybuilder Julian "The Quad Guy" Smith often receives shock and awe surrounding his insanely massive and defined triceps. Julian's sleeve-tearing triceps are almost as impressive as his quads ...

Experts say winter is a good time to double down on exercise rather than taking the foot off the gas.

Many runners find pushing themselves in training and racing as one great source of enjoyment for the hobby, which is why once a month in our Runner’s World+ member newsletter we describe a quality ...

If you're wondering how to stick with your favorite workout but make it more intense, the "talk test" might be your answer. The talk test is a way to measure relative intensity of an activity, and it ...