Sprint

A few minutes of intense physical activity may cause the body to react very differently than a moderate workout lasting an hour and a half. Researchers from Rockefeller University found that just six 30-second sprints — three minutes of cumulative effort — caused extensive changes in proteins and other substances found in the blood immediately after the workout.

The Olympic track cyclist completed an excellent performance at the Grand Prix of Poland, winning the keirin and setting a track record in the sprint qualifiers.

Livio Berruti was only 21 when he won the 200-meter dash at the 1960 Rome Olympics, becoming the first European to win gold in the event. The Italian sprinter, famous for his sunglasses and white socks, equaled the world record twice in a matter of hours and became a national hero.