This is one of those show-off moves that looks harder than it is. Trainer Ted Borgerding of Ignition APG gym in Cincinnati has the calorie-burning, leg-firming how-to.
Plyo boxes (they're really metal podiums) range from 6 to 30 inches high. Use the shorter one until you get comfortable. Your gym probably has a set on the weights floor, or you can buy your own. Spri.com is hooking up readers with a 25 percent discount. Enter self at checkout. You're welcome.