Ever notice how your form falls apart in the last 50 meters of a race? Here’s a trick I swear by: keep your shoulders relaxed and your hands loose, like you’re holding a potato chip. Tension kills speed. Next time you hit the track, give it a try and feel... moreEver notice how your form falls apart in the last 50 meters of a race? Here’s a trick I swear by: keep your shoulders relaxed and your hands loose, like you’re holding a potato chip. Tension kills speed. Next time you hit the track, give it a try and feel the difference. less