397This entry was posted in Daily 20-Min Workouts on May 5, 2016 by OPEN GYM Fitness Run 1/4 Mile 50 Mountain Climbers 40 GHD Sit Ups 30 Kettlebell Deadlift 20 Back Extensions Run 1/4 Mile 20 Back Extensions 30 Kettlebell Deadlift 40 GHD Sit Ups 50 Mountain Climbers Run 1/4 Mile