Stay in America is staying in the hospital after surgery he starts to suffer from a fever diarrhea and abdominal pain how did stamina most likely contract his nosocomial infection

The person who utilize the progression principle will keep adding the difficulty of the exercise that he's doing, while the person who does not, will only stay stagnant.  the person that utilize progression principle, will get a stronger endurance because now his body is conditioned to do harsher routines.{the answer was already on verified)

Dbecause it isn't always an athlete, breathing techniques don't have to be advanced, and consistent intensity won't make it go down or stay the same