In the original stories, Holmes is said (and sometimes shown) to be, among other things, a highly skilled amateur boxer. In the short story, "The Adventure of the Empty House", he uses a martial art popular at the time called Bartitsu, although Doyle misspelled it as "baritsu." The martial art mainly seen in the film, in particular the bare-knuckle boxing match scene, is Wing Chun. This is displayed through the straight-line punches, the use of the three lower knuckles and a sideways punch, the attack on the solar-plexus, the deflection of punches using the forearm (tan), the deflection of punches using a sweeping motion (lap), and the use of the front kick. Holmes is known for being quick, agile, and effective, and Wing Chun is just that, therefore suiting him perfectly.