it's possible to a degree.
you can have a skill, between 1 and 10.
Level 1: You can sprint for 5s, once sprint key is held for a total of 5s and a player has moved x amount of x or y position, apply animation for puffed out character. Each level = +2s sprint duration.
but it's too roleplay for here and also the default samp sprint duration is random and cannot be changed, will most likely interfere with any sort of implemented system
