SciELO - Scientific Electronic Library Online

 
vol.148 issue1Health effects of dependent older people caregiving by family membersAssociation between high vitamin B12 levels and one year mortality in older people admitted to the hospital author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand

Journal

Article

Indicators

Related links

  • On index processCited by Google
  • Have no similar articlesSimilars in SciELO
  • On index processSimilars in Google

Share


Revista médica de Chile

Print version ISSN 0034-9887

Abstract

MARTORELL, Miquel et al. Comparison between self-reported and device measured physical activity according to nutritional status. Rev. méd. Chile [online]. 2020, vol.148, n.1, pp.37-45. ISSN 0034-9887.  http://dx.doi.org/10.4067/S0034-98872020000100037.

Background:

It is unknown if nutritional status could influence the accuracy of self-reported physical activity (PA) levels.

Aim:

To compare PA measured using the international physical activity questionnaire (IPAQ) and by accelerometry (ActiGraph) according to nutritional status in Chilean adults.

Material and Methods:

This is an observational cross-sectional study that used information from the GENADIO project carried out in Chile between 2009-2011. The sample consisted of 322 people. PA levels and sitting time were determined through the IPAQ self-report questionnaire and ActiGraph accelerometers (GTM1). The nutritional status was determined according to body mass index (BMI).

Results:

Compared with the measurement made with accelerometry, the IPAQ self-report questionnaire underestimated the levels of light PA, total PA and sedentary time in −171.5, −54.8 and −40.6 min / day, respectively. However, IPAQ overestimated the levels of moderate PA and vigorous PA in 91.0 and 47.3 min/day respectively, compared with accelerometry. Compared with normal weight, obese subjects reported higher levels of moderate PA (105.5 and 48.9 min/day, respectively) and vigorous PA (54.1 and 38.3 min/day respectively). Total PA had a greater delta of underestimation between IPAQ and accelerometer measurements in normal weight than in obese subjects (-122.1 vs −16.5 min/day, respectively).

Conclusions:

The measurement of PA by means of a self-report questionnaire was discrepant with its objective measurement with an accelerometer. The discrepancy is even higher in obese people.

Keywords : Accelerometry; Exercise; Obesity; Sedentary Behavior.

        · text in Spanish     · Spanish ( pdf )