UK basketball coach John Calipari said in an article on his website Thursday that his players are "now practicing and playing in games with a device that measures their exertion rate, sport zones, caloric expenditure and heart rate."

In the article, Calipari says that, "the device gives us the ability to monitor and check how much effort players are giving in real time. Because we are able to read their heart rates, now we know who is maxing out in practice and who is hiding, who thinks they're going hard and who isn't, who is able to push themselves through pain, and who has mental toughness to be special."

To read more, visit Calipari's site at http://www.coachcal.com/19635/2013/01/the-monitoring-system-doesnt-lie/.