Answer: Complementary medicine.
Explanation:
Complementary medicine is defined as the set of therapeutic techniques that are not part of conventional medicine. These, as their name says, are a complement, not the first option when treating a patient. Some complementary medicine techniques are meditation, hypnosis, acupuncture, and massage.
With this question firstly you can think beyond football players. Technology can be used to better understand everyone's health, including people and animals. Think about things like injuries that cant be seen, such as concussions. If a football player wanted to better understand their health they could get an MRI or use other forms of technology. Outside of injuries there is also the health aspect, you can check your cholesterol and blood rate and all that very easily now a days, making it quite easy to check if you are healthy.