Lung FunctionTesting Sequence

Terminating a fitness test16/04/2012SHMD 139

2

Lungs

3

Alveoli

4

The lungs contain more

than 600 million alveoli.

An average adult-sized lung weighs about

1kg.

If spread out, lung tissue would

cover about one half of a tennis

court.

5

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Poor lung function will limit the amount of oxygen that can be delivered to the bloodstream and the tissues.

Assess whether the airways between the mouth and the alveoli are clear and favorable to good air flow.

Why?

6

Measure: Peak expiratory flow rate (PEFR) which is a

measurement of the power of the lungs.

Tells us how much air would pass through our lungs if

we breathed in an out at our maximum power for one

minute.

Lung FunctionMeasured using peak flow meter.

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1. Ask the client to hold the peak flow meter directly in front of their mouth.

2. Ask them to turn their head to the side and take three deep breaths.

3. On the third breath, ask them to put their mouths around the end of the tube

and, ensuring a good lip seal, blow as hard as they can into the tube.

4. Instruct that it should be a short, sharp blow, as if they were using a pea-

shooter.

5. Repeat twice more and take the highest reading. This is called their peak

expiratory flow rate (PEFR).

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Need to know gender, age and height of client to work out their

acceptable score.

If the client’s score is 100 below the acceptable figure, this is classified

as poor lung function and they should be referred to a GP before they

exercise.

Example:

Lung Function

PEFR for FemalesAge 1.45

m1.50m

1.55m

1.60m

1.65m

1.70m

1.75m

1.80m

25 365 383 400 416 433 449 466 482

30 357 374 390 407 423 440 456 473

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The order in which you conduct the tests must be considered as it may change the accuracy of the results you produce

Some testing may have to be done on different days to produce the best result

Example: a test that requires maximal effort will require a few hours for recovery. A test requiring a high level of skill or co-ordination needs to be done first because skill level decreases when you are tired

Test Sequence

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The correct order would be:1. Sedentary tests such as - height

- weight- body composition- flexibility

2. Agility tests3. Maximum power & strength tests4. Sprint tests5. Muscular endurance tests6. Aerobic endurance test

Test Sequence

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There will be occasions when it becomes unsafe to continue a test due to physiological changes within the client.

Reasons to Terminate a Fitness Test

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The following is a list of specific situations when a test should be stopped:◦ Chest pains or angina-like symptoms◦ Excessive blood pressure (250/115)◦ Shortness of breath and wheezing◦ Leg cramps or pain◦ Light-headedness, nausea or pale, clammy skin

Reasons to Terminate a Fitness Test

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◦ Heart rate does not rise with exercise intensity◦ Irregular heart beat◦ Client requests to stop◦ Signs and symptoms of severe exhaustion◦ Equipment fails

Reasons to Terminate a Fitness Test

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1. In your own words, explain why the sequence of testing is important. Provide an example. 4

2. List, in order, the correct sequence of testing. 73. List 7 situations which could occur that would cause a test to be

terminated. 74. What risk does an excessive blood pressure pose during testing.

25. What should happen to heart rate during exercise testing? 1

Questions

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6. Why should the test be stopped if the equipment fails? 27. What is the reason for assessing lung function? 38. What are the implications of a poor lung function? 39. What instrument do you use to measure lung function? 110. What does peak expiratory flow rate (PEFR) mean, and what

does it measure? 411. Describe the procedure for measuring lung function. 10

Questions