Percussive massage therapy devices such as the TheraGun are being used across hundreds of sports for muscle relief and recovery. But what's the science behind them?

Former professional extreme skier Kristen Ulmer details why conquering fear won't work and what to do instead.

One SI writer's sets out to make the transition from running to triathlon training. What does a newbie need to know to complete the race?

We've rounded up and reviewed the best running shoes for women for 2017.