We tried out J. Lo's 32-minute express workout What It Is: A 32-minute express workout with celebrity trainer David Kirsch Who Tried It: Grace Gavilanes, PEOPLE.com associate editor Level of ...
J.Lo kicks off her workout with some mobility — the world's greatest stretch — before moving into some dumbbell exercises with a pair of 5lbs dumbbells to target the upper body and lower body.
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