Nike is making a push in the athletic training equipment business with the 2008 winter launch of their SPARQ training equipment line. The initial product launch featured San Diego Charger running back Ladainian Tomlinson hosting a press conference about "his better." If you watched any sporting event during the March to June 2008 timeframe, you will recognize the commercial. But all this hype begs the questions: what is SPARQ training, why should you care, and what does it test? Let's dig in and see if we can find some answers. More...