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Visualization of Intensity Levels to Reduce the Gap Between Self-Reported and Directly Measured Physical Activity
Published on: March 7, 2019
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[Comparison between self-reported and device measured physical activity according to nutritional status]
Miquel Martorell1, Ana María Labraña1, Karina Ramírez-Alarcón1
1Departamento de Nutrición y Dietética, Facultad de Farmacia, Universidad de Concepción, Concepción, Chile.
Revista Medica De Chile
|July 31, 2020
Summary
Nutritional status affects physical activity (PA) reporting accuracy. Obese individuals show greater discrepancies between self-reported PA via International Physical Activity Questionnaire (IPAQ) and accelerometer measurements.
Area of Science:
- Public Health
- Epidemiology
- Nutritional Science
Background:
- The accuracy of self-reported physical activity (PA) levels is not well understood in relation to nutritional status.
- Assessing PA is crucial for public health interventions and understanding disease risk.
Purpose of the Study:
- To compare physical activity (PA) measurements obtained from the International Physical Activity Questionnaire (IPAQ) and accelerometry (ActiGraph).
- To analyze these comparisons based on the nutritional status of Chilean adults.
Main Methods:
- An observational, cross-sectional study involving 322 Chilean adults from the GENADIO project (2009-2011).
- Physical activity (PA) and sitting time were measured using the IPAQ self-report questionnaire and ActiGraph accelerometers.
- Nutritional status was categorized by body mass index (BMI).
Main Results:
- The IPAQ self-report questionnaire underestimated light PA, total PA, and sedentary time compared to accelerometry.
- Conversely, IPAQ overestimated moderate and vigorous PA levels when compared to accelerometry.
- Obese individuals reported higher moderate and vigorous PA levels than normal-weight individuals, and total PA underestimation was greater in normal-weight subjects.
Conclusions:
- There is a significant discrepancy between self-reported PA (IPAQ) and objective accelerometer measurements.
- This discrepancy in PA measurement is more pronounced in individuals with obesity.
