Experts share the best types of interval training to help you improve both as a long-distance runner and an all-around athlete.

Research also backs up the importance of durability, particularly in ultramarathons. A 2025 study says “muscle damage and associated fatigue is the main impediment to performance in long ...

Lactate threshold workouts are one of the most important parts of a distance-running training plan. Putting your body through this type of exercise will help you run faster and run longer. “Lactate ...

One of the most pervasive myths among runners is that there’s no need for strength training. Some of the most common rumors about stepping into the gym to do anything other than use the treadmill ...

Warming up before a running competition is key to getting the best out of your body. But did you know that not every race ...

Cherie Gruenfeld, 81, is an Ironman Hall of Famer who completed her first marathon at age 42. She retired from competing at 78 with 14 world titles, and still competes in half-Ironmans and ...