With her debut DVD, "Power Boxing Workout," 24-year-old flyweight Marlen Esparza, who brought home a bronze medal from the 2012 Olympics, introduces viewers to the technique and lingo of boxing and her training philosophy.
"It's how I throw punches. It's how I learned," says Esparza, who was drawn to her dad's favorite sport at the age of 11.
With this beginner program, she hopes to hook a broader audience on boxing, which she views as a training ground for more than just physical fitness: "It takes a lot mentally. You learn what you're capable of."
You also learn what's required to power up a jab or cross. Much of the conditioning in the hourlong workout is focused on the lower body and core. ("You're like a tree -- you need a strong trunk," she explains.)
The lunge series that involves stepping out at every possible angle is something Esparza always relies on when she's tapering before a big match. There are no weights, but it's still a killer routine, she says.