853This entry was posted in Daily 20-Min Workouts on February 23, 2018 by OPEN GYM Fitness 4 Sets Of: 4 Weighted Squat Jumps 8 Goblet Squats, each side 12 Hamstring Curls on Stability Ball 5 Rounds Of: :20 Battle Ropes :20 TRX Squat Jumps :20 Wall Sit w/ Kettlebell Hold :20 Hollow Hold Rest one minute between rounds.