Put this in the main forum but figured I'd share here too

It all started with a little green light.

On the first night of the NBA's summer league in Las Vegas, the San Antonio Spurs played the Charlotte Bobcats. As Spurs center Aron Baynes prepared to inbound the ball from the baseline, a small green light was visible, blinking steadily through the white mesh of his jersey.

First question: Is he a cyborg?

Second, more sensible question: Is that the biometric monitoring the Spurs have used in the D-League?

A stroll behind the bench confirmed every Spur had a small bulge, just between the shoulder blades, blinking green.

Fascinating. Mysterious. And as it turns out, loaded with potential: It's part of a system that has led to a huge reductions in injury, and dramatic improvements in performance, in a professional league half a world away.
We learned from 48 Minutes of Hellís Andrew McNeill that the Austin Toros -- the Spursí D-League affiliate -- were trying out some technology made by Catapult Sports.

"Itís a load meter and itís a new sports science thing," Toros coach Brad Jones explained to McNeill. "It's like a vest you put on underneath [your clothes] and you wear it in practice and it keeps track of the energy youíre burning."

The key term here is "load," the aggregate energy put into and stress placed upon the body during athletic activity. In basketball terms, this may mean -- according to the Catapult Sports site, which confirms the Spurs as clients -- measuring "the speed of a shooting guard coming off a down-screen, the impact force of a center banging on the low block, or the total distance covered by a point guard over the course of a game, week or season."
Read more here