The lung is a pretty simple movement that you've certainly carried out countless times before, but there are a few significant subtleties that you can consider in order to shield yourself from knee injuries further down the track.
150 meter Run 20 Box Step-Ups (24/20 in) 20 Walking Lunges 75 meter Run 10 Broad-Jumps 10 Push-Ups 150 meter Run 10 Burpees 20 Box Tricep Dips (24/20 in)