The following clips were recorded at the Duke University varsity Fencing practice.  The fencers first warm up together, following which, they do a series of quickness exercieses.  They then split up into their respective weapons-- epee, foil, and sabre-- to practice their footwork, without their equiment. The footwork patterns are different for each weapon, as showcased by their different footwork drills.  As a general rule of thumb, lunges result in a loud impact sound, due to its use as an attack movement in the sport.  There are countless other movements in fencing, some defensive, some offensive.  The recording below with focus on the discernable footwork of the sabre weapon.