Meanwhile , the other group straps 15 - pound weight belts on , running through drills like treading water , throwing the ball around , and wresting with teammates .
The first group tackles 6,000 yards in the pool , from freestyle to backstroke to breaststroke .
The other group straps 15 - pound weight belts on , running through drills like treading water , throwing the ball around , and wresting with teammates .
The first group tackles 6,000 yards in the pool , from freestyle to backstroke to breaststroke .