Research
Adherence
Self-reported physical activity questionnaires (IPAQ) significantly underestimate the strength of the relationship between moderate-to-vigorous physical activity (MVPA) and metabolic risk biomarkers (insulin, triglycerides, HOMA-IR) compared to objective accelerometer measurements.
If you are using a fitness tracker, trust its data on metabolic health more than your memory of how much you moved. Self-reporting tends to overestimate activity and underestimate its health benefits. For precise health risk assessment, objective measurement is superior.
GoodQualifiesHIGH confidence
Using this self-report method to quantify activity can therefore underestimate the strength of some relationships with risk factors.
Why this rating
Large sample size (N=317), rigorous statistical comparison of two measurement methods, and significant interaction p-values.
Source
Objective vs. Self-Reported Physical Activity and Sedentary Time: Effects of Measurement Method on Relationships with Risk Biomarkers
Carlos Celis‐Morales et al. · PLoS ONE · 2012
cross_sectional · n=317Cited 489×
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