How Ultra-Flexible Teens Turned ‘Tricking’ Into a Sport

The floor inside All Star Karate Center has a subtle spring to it. The bounce is stiff and reactive—not sluggish, like a backyard trampoline—and originates a few inches below the padding under my bare feet. It feels… good? If that makes sense? Reassuring, almost. As though, on this floor, I could run a bit faster, […]