Stamina and excercise concept (same as in single player)

Basically, making Gyms and houses with work out equipment more functional by adding the stamina concept. By excercising/ work out, players can increase their stamina and run longer distances. For this, the equipments at gyms and certain houses should be made functional.
Thoughts?
I have doubts that stamina can even be controlled on samp, but whether yes or not, big -1

why are these people going downhill by suggesting everything that pretty much hardens up the game, it's not fun and it's not good. -1
Sorry going to have to -1 for obvious reasoning.. it makes the game too RP’y.. we already have to deal with a fuel tank, let’s stop it there.
why do we need this ???? -1 from my side
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
Not possible.