218This entry was posted in Daily 20-Min Workouts on September 25, 2015 by OPEN GYM Fitness 4 Supersets of: 10 Bench Press 8/side 1-Arm Kettlebell Row 6 Back Extension For 8 Minutes: 8 Ball Slams 12 TRX Rows 30 sec L-Sit/Tuck Hold (on parallettes)