Even the fastest woman over 400m hurdles knows what it feels like to hit a wall. Sydney McLaughlin-Levrone has never ...

I trained with Coffey, cofounder of DeFine New York Run Club, for my first marathon before following him as he co-launched ...

Heart rate training is a progression from running by feel or running by pace, as both methods can be inherently inaccurate.

A runner’s body is similar: Being the most efficient athlete possible involves focusing on biomechanical factors including ...

Ng explains that setting a goal that’s faster than what you’re currently capable of can help you improve overall fitness and ...

All products featured on Self are independently selected by our editors. However, we may receive compensation from retailers and/or from purchases of products through these links. Yes, running ...

In Formula 1, every single second counts. In the Lenovo F1 paddock, engineers analyze thousands of data points in real time.