If you’re wondering why your legs feel heavy when running, then you’re in the right place. That “ugh, why do my legs feel like cement blocks” feeling can happen for all kinds of reasons, and sometimes ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you've ever seen professional athletes, celebrities, or even performers lounging in those giant space ...

Anthony Blazevich received funding in the past from the English Institute of Sport, UK, PhD scholarship funding (Running economy in middle distance runners). Humans and our ancestors have been running ...

You hit the shower after a good run and then notice them — those black-and-blue marks on your legs that you weren’t expecting. They may come from an actual injury, or from exercise-induced bruising.