46This entry was posted in Daily 20-Min Workouts on March 1, 2015 by OPEN GYM Fitness 5 Sets of: 8 Shoulder Press 4 Rounds of: 5 Pull Ups 25 Hollow Rocks For 8 Minutes: 10 1-Arm Kettlebell Rows, each arm 20 Kettlebell Reverse Lunges 30 Bosu Sit Ups