Michal Kapral

A good night’s sleep has an immediate effect on encouraging exercise the next day, but it could take months before exercise improves your sleep, a new study has found.

Heel strikers run more economically than their midfoot striker counterparts, according to a new study out of the University of León, Spain.

The Boston Athletic Association will open registration to at 10 a.m. ET for the fastest qualifiers of the 2014 Boston Marathon.

Speaking to the media before the Diamond League track meet in Brussels, Belgium, Jamaican sprint star Usain Bolt says Canadian sprinter Ben Johnson would “never” have beaten him over 100m.

Athletics Canada has announced that 61 athletes will represent Canada at the Francophone Games in Nice, France, starting Sept. 10, including 800m stars Melissa Bishop and Geoff Harris.

The owners of the Rock ‘n’ Roll marathon and half-marathon race series have pulled their elite athlete funding program, spurring a debate about the value of paying for top talent at participatory races.

Fat loss rules for runners: From a calories-in calories-out perspective, one night of drunken gluttony can undo 30K worth of running. I know, because sometimes I do just that.

The Haliburton Forest Trail Run in Ontario’s cottage country is celebrating its 20th anniversary on Sept. 7.

Usain Bolt says he plans to retire as a competitive sprinter after the 2016 Olympics in Rio de Janeiro.

A coroner has ruled that a 23-year-old man died from a “perfect storm” of a reaction to a combination of sports supplements, ibuprofen and exercise exertion, after he collapsed at the 26K mark of the Brighton Marathon in April.

Double-leg amputee Richard Whitehead is almost halfway through his challenge to run 40 marathons in 40 days, a year after winning the gold medal in the Paralympic 200m.

Kate, the Duchess of Cambridge, chose an ultramarathon as the site of her first public appearance since the birth of Prince George. The new mom joined her husband William at the start of the 225K Ring O’ Fire ultra on the island of Anglesey, U.K.