Respiratory Volume PowerPhys Lab Report PDF

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Respiratory Volume PowerPhys Lab Report Predictions, Results, Discussion and Applications. This lab report discussed the impact of exercise....

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Laboratory Report

LABORATORY REPORT Activity: Name: Instructor: Date:

Respiratory Volumes

02.04.2022

Predictions 1. During exercise TV will increase 2. During exercise IRV will decrease

3. During exercise ERV will increase 4. During exercise VC will not change 5. During exercise TLC will not change

Materials and Methods 1. Dependent Variable respiratory volumes 2. Independent Variable level of physical activity [resting or exercising] 3. Controlled Variables sex, age, height

4. Which respiratory volume was calculated?

5. What was the purpose of the nose clip?

Results Table 2: Average Breathing Rates and Lung Volumes

Subject1 Subject2 Subject3 Averages

Breathing Rate 11.2 11.6 10.2 11.0

TV(L) 0.4 0.5 0.6 0.5

Resting Values ERV(L) IRV(L) 1.3 1.4 1.4 1.4

2.1 2.3 2.4 2.3

Laboratory Report/ / Respiratory Volumes/ / 02.04.2022/ Page [1] of [4]

RV(L) 1.6 1.6 1.6 1.6

Breathing Rate 29.6 28.9 29.6 29.4

TV(L) 1.5 1.7 1.8 1.7

Exercising Values ERV(L) IRV(L) 0.6 0.6 0.7 0.6

1.7 1.9 1.9 1.8

RV(L) 1.6 1.6 1.6 1.6

Laboratory Report

Comparison of Resting and Exercising Lung Volumes and Breathing Rate L Resting Values

3 2.4

Exercising Values

1. TV 2. ERV 3. IRV 4. RV

1.8 1.2 0.6 0 1

2

3

4

L Resting Values

30 24

Exercising Values

1. Breathing Rate

18 12 6 0 1

1. Did the breathing rate increase, decrease, or not change with exercise? The average breathing rate increased by 18.4 with exercise.

2. Did the tidal volume increase, decrease, or not change with exercise? The average tidal volume increased by 1.2 L after exercise. 3. Did the expiratory reserve volume increase, decrease, or not change with exercise? The average ERV decreased by 0.8 L with exercise. 4. Did the inspiratory reserve volume increase, decrease, or not change with exercise? The average IRV decreased by 0.5 L with exercise.

5. Did the inspiratory capacity increase, decrease, or not change with exercise? The average inspiratory capacity increased by 0.7 L 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? The average minute ventilation increased by 43.4 L with exercise.

Table 3: Lung Capacities and Minute Ventilation

Subject1 Subject2 Subject3 Averages

IC(L)

FRC(L)

2.5 2.8 3.0 2.8

2.9 3.0 3.0 3.0

Resting Values VC(L) TLC(L)

3.8 4.2 4.4 4.1

5.4 5.8 6.0 5.7

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Minute Ventilation (L) 4.5 5.8 6.1 5.5

IC(L)

FRC(L)

3.2 3.6 3.7 3.5

2.2 2.2 2.3 2.2

Exercising Values VC(L) TLC(L)

3.8 4.2 4.4 4.1

5.4 5.8 6.0 5.7

Minute Ventilation (L) 44.4 49.1 53.3 48.9

Laboratory Report

Comparison of Resting and Exercising Lung Capacities and Minute Ventilation L Resting Values

6 4.8

Exercising Values

1. IC 2. FRC 3. VC 4. TLC

3.6 2.4 1.2 0 1

2

3

4

L Resting Values

50 40

Exercising Values

1. Minute Ventilation

30 20 10 0 1

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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Laboratory Report

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.

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