Description:Jessica Alba has joined the CrossFit craze! To get her sweat on, the svelte actress can be found in the gym tossing medicine balls and doing sets of burpees with Reebok trainer Yumi Lee counting her reps and checking her form. In fact, Jessica credits her CrossFit workouts for whipping her body quickly into shape after having her second child.
Yumi walked us through five moves that regularly appear in Jessica's workouts.(4:55)