Fatigue is a major contributor to sports injury. You probably want to push yourself to the limit but athletes can all too easily push past the limit. By monitoring activity and vitals the wearable device from Catapult can alert to coaches to bench a player. Via Bloomberg

Sports teams are increasingly sucking up data to find out how their athletes are performing. Last year, the total market for sports tech was over $21.1 billion, according to a recent report from Citigroup Inc. Firms like Boston-based analytics company Catapult Sports, which launched its latest athlete tracking product on Monday, are sending real-time data to coaches on how much energy a player is exerting during practice or a game.

Here’s how it works: the Vector T7 is pinned to the back of a player’s jersey or worn around the waist. Using local positioning systems as well as inertial and heart rate sensors, the device tracks data like how long someone ran or how high they jumped. This is then used to estimate a load metric, or how hard the player worked.

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