Box Jump to a Tight and Toned Body

By SP_COP on September 26, 2014
Learn to box jump to a tight and toned body with 30-Second Fitness trainer Jen Widerstrom.

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Get stronger, slimmer, and sexier with tips from the top trainers of 30-Second Fitness. These fitness pros are ready to upgrade your workouts and enhance your training with quick-hitting tips that take just half a minute.
NAMES: Jennifer Widerstrom