Laboratory Report

Materials and Methods

Which respiratory volume was calculated?
What was the purpose of the nose clip?

Results

Breathing Rate and Lung Volumes
	Resting Values					Exercising Values
	Breathing Rate	TV(L)	ERV(L)	IRV(L)	RV(L)	Breathing Rate	TV(L)	ERV(L)	IRV(L)	RV(L)
Subject 1
Subject 2
Subject 3
Average

Comparison of Resting and Exercising Lung Volumes and Breathing Rate

Did the breathing rate increase, decrease, or not change with exercise?
Did the tidal volume increase, decrease, or not change with exercise?
Did the expiratory reserve volume increase, decrease, or not change with exercise?
Did the inspiratory reserve volume increase, decrease, or not change with exercise?
Did the inspiratory capacity increase, decrease, or not change with exercise?
Did the functional residual capacity increase, decrease, or not change with exercise?
Did the minute ventilation increase, decrease, or not change with exercise?

Lung Capacities and Minute Ventilation
	Resting Values					Exercising Values
	IC(L)	FRC(L)	VC(L)	TLC(L)	Minute Ventilation (L)	IC(L)	FRC(L)	VC(L)	TLC(L)	Minute Ventilation (L)
Subject 1
Subject 2
Subject 3
Average

Comparison of Resting and Exercising Lung Capacities and Minute Ventilation

Discussion

Lung Volumes and Capacities

Explain the change in ERV with exercise.
Explain the change in IRV with exercise.
Explain the change in IC with exercise.
Explain the change in FRC with exercise.
Explain why RV does not change with exercise.
Explain why VC does not change with exercise.
Explain why TLC does not change with exercise.
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.
Explain the importance of the change in minute ventilation with exercise.
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

During strenuous exercise, TV plateaus at about 60% of VC but minute ventilation continues to increase. Explain how that would occur.
Emphysema causes alveolar dilation and destruction of alveolar walls which causes an increase in residual volume with air that cannot be exhaled. Assuming that an individual's TLC does not change, explain why a person with developing emphysema is not short of breath while resting, but becomes short of breath after climbing a flight of stairs.

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Respiratory Volumes

1. During exercise: undefined 2. During exercise: undefined 3. During exercise: undefined 4. During exercise: undefined 5. During exercise: undefined 1. Dependent Variable. undefined 2. Independent Variable. undefined 3. Controlled Variables. undefined; undefined; undefined 4. Which respiratory volume was calculated? undefined 5. What was the purpose of the nose clip? undefined Table 2: Average Breathing Rates and Lung Volumes

Resting Values

Exercising Values

Breathing Rate

TV(L)

ERV(L)

IRV(L)

RV(L)

Breathing Rate

TV(L)

ERV(L)

IRV(L)

RV(L)

Subject1

Subject2

Subject3

Averages

Comparison of Resting and Exercising Lung Volumes and Breathing Rate Resting Values Exercising Values 0 0.6 1.2 1.8 2.4 3 TV ERV IRV RV Resting Values Exercising Values 0 6 12 18 24 30 Breathing Rate 1. Did the breathing rate increase, decrease, or not change with exercise? undefined 2. Did the tidal volume increase, decrease, or not change with exercise? undefined 3. Did the expiratory reserve volume increase, decrease, or not change with exercise? undefined 4. Did the inspiratory reserve volume increase, decrease, or not change with exercise? undefined 5. Did the inspiratory capacity increase, decrease, or not change with exercise? undefined 6. Did the functional residual capacity increase, decrease, or not change with exercise? undefined 7. Did the minute ventilation increase, decrease, or not change with exercise? undefined Table 3: Lung Capacities and Minute Ventilation

Resting Values

Exercising Values

IC(L)

FRC(L)

VC(L)

TLC(L)

Minute Ventilation (L)

IC(L)

FRC(L)

VC(L)

TLC(L)

Minute Ventilation (L)

Subject1

Subject2

Subject3

Averages

Comparison of Resting and Exercising Lung Capacities and Minute Ventilation Resting Values Exercising Values 0 1.2 2.4 3.6 4.8 6 IC FRC VC TLC Resting Values Exercising Values 0 10 20 30 40 50 Minute Ventilation 1. Explain the change in ERV with exercise. undefined 2. Explain the change in IRV with exercise. undefined 3. Explain the change in IC with exercise. undefined 4. Explain the change in FRC with exercise. undefined 5. Explain why RV does not change with exercise. undefined 6. Explain why VC does not change with exercise. undefined 7. Explain why TLC does not change with exercise. undefined 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. undefined 9. Explain the importance of the change in minute ventilation with exercise. undefined 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. undefined 1. During strenuous exercise, TV plateaus at about 60% of VC but minute ventilation continues to increase. Explain how that would occur undefined 2. Emphysema causes alveolar dilation and destruction of alveolar walls which causes an increase in residual volume with air that cannot be exhaled. Assuming that an individual's TLC does not change, explain why a person with developing emphysema is not short of breath while resting, but becomes short of breath after climbing a flight of stairs. undefined