how to do pistol squat?

there are lots of variations for squat, but this variation is one of the bests when it comes to increasing stability, checking flexibility, and isolating the quadriceps.

make sure you lower your body based on the factors mentioned(flexibility, stability and balance, and strength of your legs especially quads) and also keep in mind your lower back positioning.

even if all of these factors are in place, make sure you do not go fast and try to keep your pace and speed under control.