Question

As an athlete is running a 5 kilometer race, his cells need more oxygen. Which change will help his body meet the increased demand for oxygen?

Answer 1

Hint: Oxygen absorption (or consumption) is a measure of a person's capacity to take in oxygen. It is achieved by the respiratory system and delivers it via the cardiovascular system to the functioning tissues and the capacity of working tissues to use oxygen (predominantly skeletal muscle). Oxygen uptake rises for the first few minutes before a stable state of uptake during low-intensity exercise with a consistent power output.

Complete answer:
When the heart rate of the athlete rises, the rate at which blood flows through her body also rises. Therefore more oxygen can be transferred to body cells as blood flows faster through the body.
None of the stresses in the body can be as great as or close to the stress of heavy exercise. Indeed when they proceed for a long time, some of the heavy exercises can easily become lethal. Therefore the degree to which stress can be transferred to body systems is a major issue in sports physiology. An instance would be: body metabolism rises by about 100 percent near death in a person with the highest fever. Nevertheless, in the marathon race, the body metabolism of an athlete can rise by over 2000 percent

Note:
Sports physiology is the topic of a study of the physiological effects of exercise, which has many benefits for human wellbeing. The physiological aspects of exercise and sports medicine, how the body functionally responds to exercise, and the physiological basis of this adaptation are discussed in sports physiology. In addition to the physiological responses provided to exercise and adaptation processes by the human body, sports physiology also deals with the development of prescriptions for individual exercises. It also deals with assessing the performance of an athlete with assessments for cardio-pulmonary and anaerobic exercise.