Something that was discussed very briefly in "The Rugby Thread" sometime ago, but this a little more detailed and an interesting article.
"Wearable technology is playing a growing role in sport all over the world, from the UK's football Premier League, worth more than £5bn ($7.1bn; €6.3bn) in global TV rights alone, to Aussie Rules Football, the first to pioneer the use of location-tracking GPS devices in 2004.
Analysis of data transmitted to the cloud from increasingly sophisticated sensors is helping teams keep their players at the peak of physical fitness.
Leicester City Football Club, for example - currently clinging to the English Premier League's top slot against all odds - has also had the fewest injured players over the season, a fact that may have a lot to do with the club's clever use of technology."
Some intereting articles behind the innovation, companies and patents involved in this form of "wearable" tech my team's working on at the moment. I'll post some links when we publish early next month.
"A man who does not think for himself, does not think at all." Wilde