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Why are levels of P.A and sedentary activity assessed and what info is included
- Assessed to see whether adequate levels of P.A are being met in conjunction with NPAGs
- Including
- -frequency
- -duration
- -intensity
- -type
- -context
- -energy expenditure
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What are the domains of physical activity
- Active transport
- Occupational
- Household and gardening
- Liesure time category
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What are subjective methods of assessing physical activity- give examples
- Depend on our own perceptions and ideas or P.A levels
- Predominantly used in large populations
- Examples are- diaries, logs, recall surveys
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Advantages of subjective methods of assessment
- Quick to administer groups
- Usually easy to complete
- Give a good account of the context of the activity undertaken
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Disadvantages of subjective methods of assessment
- Can be a burden on subject to complete
- Open to misinterpretation or inaccurate reading- often due to social desirability bias
- Poor recall ability by children or elderly can reduce reliability and validity
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What are objective methods of assessing physical activity- give examples
- Rely on solid data to make conclusions about physical activity levels
- Mainly used on an individual basis
- Examples are- pedometry, heart rate monitors, accelerometry, observational tools
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Advantages of objective methods of assessment
- Directly measured data reduces bias from
- poor memory
- over-reporting to fit social norms
- under-reporting to fit social norms
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Disadvantages of objective methods of assessment
- High cost of equipment used
- Burden placed on participant and staff to use equipment correctly
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