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Respiratory Physiology and Exercise Essays

LABORATORY REPORT Activity 8: Respiratory Volumes Name: Instructor: Date: PREDICTIONS 1. During exercise: 2. During exercise: 3. During exercise: 4. During exercise: 5. During exercise: MATERIALS AND METHODS 1. Dependent Variable. 2. Independent Variable. 3. Controlled Variables. 4. Which respiratory volume was calculated? 5. What was the purpose of the nose clip? RESULTS See Table 2: Average Breathing Rates and Lung Volumes See Graph: Comparison of Resting and Exercising Lung Volumes and Breathing Rate . Did the breathing rate increase, decrease, or not change with exercise? 2. Did the tidal volume increase, decrease, or not change with exercise? 3. Did the expiratory reserve volume increase, decrease, or not change with exercise? 4. Did the inspiratory reserve volume increase, decrease, or not change with exercise? 5. Did the inspiratory capacity increase, decrease, or not change with exercise? 6. Did the functional residual capacity increase, decrease, or not change with exercise? 7.
Did the minute ventilation increase, decrease, or not change with exercise? See Table 3: Lung Capacities and Minute Ventilation See Graph: Comparison of Resting and Exercising Lung Capacities and Minute Ventilation DISCUSSION 1. Explain the change in ERV with exercise. 2. Explain the change in IRV with exercise. 3. Explain the change in IC with exercise. 4. Explain the change in FRC with exercise. 5. Explain why RV does not change with exercise. 6. Explain why VC does not change with exercise. 7. Explain why TLC does not change with exercise. 8.
During exercise, the depth of respiration increases Name the muscles involved in increasing the depth of respiration and explain how muscle contraction causes this increase. 9. Explain the importance of the change in minute ventilation with exercise. 10. Restate your predictions that were correct and give data from your experiment that support them. Restate your predictions that were not correct and correct them with supporting data from your experiment. APPLICATION 1. During strenuous exercise, TV plateaus at about 60% of VC but minute ventilation continues to increase. Explain how that would occur.

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