When I started training for my first race, I became fast friends with my foam roller. At the time, I didn’t know any better, so I rolled, jammed lacrosse balls into tight knots and hoped for the best. I chalked it up to the toughness required of the sport. Despite my dutiful rolling, the same aches and pains returned. When something is tight, it’s our natural instinct to rub it until it feels better. But what if there’s a better way?