Fast Travel is also impossible if the player character is overloaded, unless they happen to be riding a horse. Players will likely notice at that point that walking is very slow. It is possible to carry more items that the Carry Weight statistic, but then a message stating that your are overencumbered and cannot run will be posted.
Increasing Stamina increases the maximum Carry Weight by five for each level point. All characters begin the game with a Carry Weight of 300, regardless of race or gender. Carry Weight, or carrying capacity, is the total weight of items that a player character can carry.