208This entry was posted in Daily 20-Min Workouts on September 12, 2015 by OPEN GYM Fitness 4 Circuits of: Lateral Gallops (over 12″ hurdle or dot) Weighted Sit Ups on Stability Ball Battle Ropes TRX Squat Jumps Plank on Stability Ball Do each exercise for 35 seconds followed by 25 seconds rest.