Music sets tone in Kelly's up-tempo practices
|Can you spot the heart monitor?|
That's the initial reaction driving past the Eagles' practice fields, hearing the music, the whistles and seeing the mass of humanity.
It looks more like a dance party than a practice.
Celek, quarterback Michael Vick and several players practice with heart monitors. The training staff studies the results hoping to keep players functioning at or above a consistent level.
But at the same time, you hear it, you feel it ... and you cannot help but want to dance after taking it in.
Follow @BobGrotz on Twitter