Today, we accept that there are four competitive strokes. But when the first rules for competitive swimming were written in the early 19th century, there was only one rule: Whoever swam the fastest ...

Keep reading to learn more about each stroke and how they're swam, plus which muscles are worked. This powerful stroke requires a swimmer to move up out of the water and back down in a smooth, almost ...

We get it: running is your first love, and nothing quite beats the rush of hitting the pavements (or trails), bagging new PBs or the thrill of that runner’s high. But let’s face it, running is a ...