Popsugar Health & Fitness Trainer Tips Jillian Michaels Workouts Jillian Michaels Shares the Crazy-Effective Workouts That Keep Her in Shape 31 July 2018 by Christina Stiehl View On One Page Photo 3 of 7 ADVERTISEMENT () Start Slideshow A post shared by Jillian (Motha F*ckn) Michaels (@jillianmichaels) on Jul 2, 2018 at 8:15am PDT Share This Link Copy ← Use Arrow Keys → 3 Back Challenge Circuit Target your back with this challenge circuit. Do each move for 30 seconds and complete two rounds. Previous Next Start Slideshow Trainer TipsWorkout TipsBody WeightBodyweight ExercisesBack ExercisesArm ExercisesLeg ExercisesButt ExercisesWorkoutsAb Exercises