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 ...

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 ...

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

Across the country, more people are lacing up their sneakers, whether it’s for neighborhood fun runs or full marathons. Just last year, the New York City Marathon saw more finishers than ever with ...

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 ...