Stamina
From Gloria Victis
Stamina is a statistic that measures the ability to sustain physical effort. Stamina is required for attacking, blocking, kicking, jumping, sprinting, and swimming.
Each point in strength provides .6 stamina.
Each point in constitution provides 1.2 stamina.
Stamina management is the art of not running out of stamina too quickly in a fight, and is regarded as one of the top skills players must learn.