A personal trainer is a person who helps people exercise.
The 5 classic components of fitness are muscular strength, muscular endurance, body composition, cardiovascular endurance, and flexibility. Although there are other subsets like power and speed. The general population is defined as an age range of 18 to about 50 (45 and younger for males, 55 and younger for females). The definition of healthy in this context means an absence of a disease that would affect one's ability to exercise. Anyone outside that scope of practice should be placed in a trainer's scope after a visit to the doctor to see what kind, if any, exercise they are capable of.
The 5 classic components of fitness are muscular strength, muscular endurance, body composition, cardiovascular endurance, and flexibility. Although there are other subsets like power and speed. The general population is defined as an age range of 18 to about 50 (45 and younger for males, 55 and younger for females). The definition of healthy in this context means an absence of a disease that would affect one's ability to exercise. Anyone outside that scope of practice should be placed in a trainer's scope after a visit to the doctor to see what kind, if any, exercise they are capable of.