Celebrity Shape-Up

TRY IT After a few easy laps to warm up, put on a flotation belt. Run at an easy pace for one minute, at a moderate pace for one and a half minutes, and then at a fast pace for one minute. Repeat five times.
HER EQUIPMENT
Julia uses a flotation belt for the deep water running exercises: Hydro Tone Belt, Hydro-Tone Fitness Systems, $50; buy online now at hydrotone.com.