4.3 Maintaining Homeostasis
Completion requirements
Unit D
Module 9 ~ Lesson 4
Cardiorespiratory Fitness
As you have seen in the previous modules, exercise is an important factor in maintaining health. Exercise can help you maintain a normal blood pressure, heart rate, and breathing rate, ensuring that the cells in your body are provided with the necessary
nutrients. Low cardiorespiratory fitness levels are associated with higher mortality rates due to cardiovascular disease, cancer, and other causes of death. Regular exercise is the best thing that you can do to decrease your risk of disease
and increase your quality of life.
Endurance athletes, such as marathon runners, have an exceptional level of cardiorespiratory fitness. However, as they run a marathon, their body is pushed to the limits.
Endurance athletes, such as marathon runners, have an exceptional level of cardiorespiratory fitness. However, as they run a marathon, their body is pushed to the limits.
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Read
Read pages 347 to 349 in your textbook starting from "The Value of Exercise" to the Section 10.2 Summary.Watch
Emma Ross explains what happens to the body while running a marathon. As you watch this video, make some notes about how a marathon runner's body maintains homeostasis in order to run 42.2 km. How do the other systems support the muscular system
in this fantastic show of fitness? How does the body maintain fluid balance, oxygen uptake, internal body temperature, and energy sources?
What Happens to the Body During a Marathon?
What Happens to the Body During a Marathon?