to be sure a person has no heart disease to be sure a person has no heart disease.
to identify the risk of muscle or bone defects to avoid injury on the athletic field to identify the risk muscle or bone defects to avoid injury on the athletic field.
and also
to keep other players from getting infected by any transmittable diseases.
Explanation:
They do this in order to check if they are healthy enough to do the fitness so they don't collapse or their heart does not stop pumping in the middle or spread any germ
