assessment of physical activity and sedentary behaviour
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Assessment of physical activity and sedentary behaviour. Purpose The National Physical Activity Guidelines Dimensions of Physical Activity Methods used to Measure Physical Activity Appropriate instruments for different groups. What is the main purposes of measuring physical activity. - PowerPoint PPT PresentationTRANSCRIPT
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Assessment of physical activity and sedentarybehaviour
PurposeThe National Physical Activity Guidelines
Dimensions of Physical ActivityMethods used to Measure Physical Activity
Appropriate instruments for different groups
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What is the main purposes of measuring physical activityAt the population level:To document the frequency and distribution of physical activity
in defined population groupsTo monitor the achievement of physical activity guidelines and
population trends over timeTo study the relationship between physical activity and health
conditions (for example, cardiovascular risk factors, type 2 diabetes, obesity, cancer and mental health)
To determine the amount or dose of physical activity required to influence specific health parameters
To identify the biological, psychological and environmental factors that influence physical activity
To evaluate the effectiveness of large-scale physical activity intervention programs
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What is the main purposes of measuring physical activityAt an individual levelTo detect change in an individual’s health
and/or behaviourTo determine the effect of any change in
physical activity behaviour
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The National Physical Activity Guidelines
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Levels of evaluation for a school-based physical activity intervention
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Determining physical activityThe only way we can determine whether a physical activity program increases a person’s physical activity behaviour is to:Measure their physical activity prior to the
introduction of the program (pre-intervention or baseline testing)
Repeat the assessment during the intervention or using identical measures at the conclusion of the program (post-test or post-intervention)
Repeat the assessment again some time later, such as 12 months after post-intervention. (This is known as follow-up.)
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Measuring the dimensions of physical activity
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Assessing the type of physical activityTo determine the energy expenditure associated- metabolic
equivalent (MET)To assess what proportion of physical activity is accumulated
within the various domains of physical activity, such as household and gardening, active transport, occupation or (for youth) school and leisure-time physical activity
To determine the most common activities performed by particular population subgroups, or within a specific context or setting. For example, children in Year 1 participate in very different types of physical activities and sedentary behaviours compared to those in Year 9. Direct observation measures could be used to determine the most common activities for each different year level.
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Measuring intensity of physical activity
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Measuring frequency of physical activityFinding a definition- understanding the
concept
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Measuring duration of physical activityFinding a definition- understanding the
concept
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Methods used to monitor physical activity at the individual and population level
Instrument F/I/D/T/C/EX Expense Reactivity
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Selection of measurement instruments
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Explain the trade-off between the accuracy and practicality of a physical activity measure.
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Subjective measures of physical activityMethod- Definition
Advantages Disadvantages
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Objective measures of physical activityMethod- Definition
Advantages Disadvantages
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Make sure the assessment instrument is appropriate for the target group