The training that every bushi student receives includes vigorous physical conditioning. For some, this results in a lifelong enjoyment of athletics. Like many who pursue a martial lifestyle, some bushi spend their off duty hours engaging in competitions with one another, or simply pitting themselves against challenges designed to test the limits of their physical abilities.
Athletics covers many areas normally governed by Trait rolls. If you have a background in Athletics, however, you can perform these activities, principally climbing, running, and swimming, with considerably more ease than most. Athletics can also increase your capacity for movement, even when restricted by heavy armor and the like. The Throwing Emphasis allows you to throw items with greater accuracy, including certain weapons such as knives or even the wakizashi. Using Athletics to throw a weapon offensively is considered an attack roll.
Athletics Skill Rolls to climb, run, or swim use Strength, whereas the Throwing Emphasis requires Agility.