Target heart rate is defined as the minimum number of heartbeats in a given amount of time in order to reach the level of exertion necessary for cardiovascular fitness, specific to a person's age, gender, or physical fitness.
Answer:
Progressive overload
Explanation:
Progressive overload involves is a type of training that involves working the muscles in a continuous and consistent manner to achieve increased strength and endurance.
This is done by application of trainings such as tempo runs which subjects the body to how long it can endure certain strenuous conditions and to try to improve on them.
A person who is trained to examine the eyes for vision problems and to prescribe corrective lenses.
