Popsugar Fitness Workouts TRX Full-Body Workout Not Gonna Lie, This 20-Minute Full-Body TRX Circuit Is Going to Kick Your Ass June 21, 2018 by Dominique Michelle Astorino View On One Page Photo 14 of 17 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 14 Circuit 4: Push-Up to Knee Pull Circuit 4: TRX strap is at midcalf length and you are facing away from the anchor point with toes in the foot cradles. Place hands on the ground, shoulder-width apart. Lower chest to the floor, then press up to plank position and drive one knee to the chest. Return to start position and repeat, driving the other knee to the chest. Continue for 30 seconds, then rest for 10 seconds. Previous Next Start Slideshow WorkoutsStrength TrainingTRXBeginner Workouts30-Minute WorkoutsFull-Body Workouts20-Minute Workouts