Strong butt muscles are the key to sprinting at an elite level
Instead of the hamstrings, your butt is the real motor behind lightning-fast sprint speeds, at least if you're an elite male sprinter
Not an early bird? Don't worry — afternoon workouts could be better for your health
New research found that afternoon exercise provides greater health benefits for some people than a morning workout
High-altitude cycling strains your heart less than running
New research explores hypoxia and exercise performance
The science behind Nike's Vaporfly shoes
World Athletics has put limits on the types of shoes that marathoners can wear to prevent sponsored athletes from having unfair advantages