The bicep and tricep are muscles that move the forearm. These types of muscles are
called?

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)

Keep your hands washed and trash kept in trash cans.