Physical activity definition quizlet10/6/2023 Note the distinct differences in the criterion measures and the importance of physical activity recall and time use methods.įigure 5a: Physical Activity Assessment Tools and Their Relative Positions on the Feasibility/Validity Continuum Figure 5B g illustrates the feasibility/validity continuum for measures of behavior. For example, DLW has essentially zero validity for measuring specific activities, as it measures aggregate energy expenditure over one or more days. 6 More work is needed to explore the feasibility/validity continuum for measurements of behavior and activity, but clearly it will differ from the continuum for estimates of energy expenditure. They describe “motion,” which can be captured by devices such as accelerometers “activity,” which represents a class of actions such as cleaning house or playing soccer and “behavior,” which is a specific action embedded in the activity, such as standing in the goalie box or wiping the windows with a paper towel. have discussed this issue in the context of measurement challenges related to distinguishing between behavior, activity, and motion. However, there is a growing realization that energy expenditure alone does not fully capture other important aspect of physical activity, such as strength, flexibility, or other behaviors. The feasibility/validity continuum has been developed and discussed for measures of energy expenditure. For simplicity, the measures are aggregated into three main categories (report-based measures, monitor-based measures, and criterion measures). Measures that are more feasible to use may have lower validity. f Measures that are highly valid are often too expensive or cumbersome to use in large-scale research applications. This relationship is illustrated in Figure 5A. The Feasibility/Validity ContinuumĪ common method for comparing measures is to determine their validity in relation to their feasibility. Many excellent review papers have already summarized the utility of various assessment tools 1,4,8,40,41 so this section emphasizes the considerations that are important when comparing tools described in the NCCOR Measures Registry. This section provides a brief description of physical activity measures while establishing an important relation between feasibility and validity. Overview of Physical Activity Assessment ToolsĪ number of techniques and tools are available to assess physical activity in children and youth, each with advantages and disadvantages.
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