Under Armour's Sensor-Embedded Shirts Measure NFL Prospects
![](https://www.popsci.com/uploads/2019/03/18/RXWKKKXZ2OUCLCA7UZ7KGZHTI4.jpg?auto=webp)
Under Armour's E39 shirt looks mostly like a typical Under Armour compression shirt, which is to say, entirely unflattering on those of us who aren't professional athletes. But the E39 is actually a very different beast from the usual apparel, packing a triaxial accelerometer, a heart-rate monitor, and a breathing monitor. The days of simply clocking an NFL prospect's 20-yard sprint time are over--now coaches can see second-to-second updates on the player's internals, and even track the acceleration and deceleration of a player's individual strides.
![](https://www.popsci.com/uploads/2019/03/18/RXWKKKXZ2OUCLCA7UZ7KGZHTI4.jpg?auto=webp)
Under Armour's Sensor-Embedded Shirts Measure NFL Prospects, Stride by Stride
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Wearables, Page 5 of 5
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Gear, Page 81 of 88
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Gear, Page 81 of 88
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Concurrent Validity of the Armour39 Heart Rate Monitor Strap
![](https://i.pinimg.com/736x/eb/e1/78/ebe1789e40fc5cb6512880849bccb4d7.jpg)
The above data is combined with the already streaming data of live relay from the stadiums via satellite cameras and trac…
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Wearables, Page 5 of 5
![](https://c5.rgstatic.net/m/4671872220764/images/template/default/profile/profile_default_m.jpg)
Concurrent Validity of the Armour39 Heart Rate Monitor Strap
![](http://www.veldugo01.com/uploads/images/880498.jpg)
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