The setting looks like a boxing training rink.  The man closest to the viewer appears to have scars and possible bruises from an earlier match.  Everyone is now at an adrenaline rush, feeling the rhythm of the sport.  They have warmed up and their minds at the peak where it starts running patterns of offense and defense, the timing is of their actions are getting more precise.  They want more speed, not too much power.  They want their feet to feel like feathers.  They will continue training for an hour more.
