by Trent Lorcher
In this age of technology, many fitness buffs have forgotten the benefits of old-school workouts. They've traded gym shorts for spandex, blacktop for treadmills, and t-shirts for sports bras. If you've reached a fitness plateau, want to jump start your fitness routine, or just need to get away from the gym, maybe it's time to go old-school/
An exercise favored by boxers, jumping ...