47This entry was posted in Daily 20-Min Workouts on March 2, 2015 by OPEN GYM Fitness 5 Rounds of: 8 Dumbbell Flies 12 Push Ups 15 Hanging Knee Raises Jacob’s Ladder Intervals: 3 Minute Climb 1 Minute Rest 2 Minute Climb 1 Minute Rest 1 Miinute Climb