Sprained ankle. Meniscus tear. Shin splints. Ugly injuries, to be sure, but more often than not athletes–and their doctors–have trouble pinpointing the underlying cause. Germany-based Moticon is seeking to change all that with OpenGo Science, a new insole that fits discreetly in athletes’ shoes and delivers data to sports scientists. The ultra-thin layer is laden with sensors and can fit in any shoe.