Yes, this is an interesting use of MEMS. I remember a few years ago, a company started up that captured the golf swings and baseball swings of stars and sold a system that tracked the user's swings against those of the stars. Cools application for MEMS. Not sure how successful that company was, but it was a clever idea.
Those are some pretty cool examples of MEMS in action on the sports field. Given a segment (and hopefully a growing one) of the population's focus on fitness and competitive sports, seems like a natural application and one that can really give athletes far more control over their training regimens.
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