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Stronger association between high intensity physical activity and cardiometabolic health with improved assessment of the full intensity range using accelerometry

Artikel i vetenskaplig tidskrift
Författare Jonatan Fridolfsson
Mats Börjesson
Elin Ekblom‐bak
Örjan Ekblom
Daniel Arvidsson
Publicerad i Sensors (Switzerland)
Volym 20
Nummer/häfte 4
ISSN 14248220
Publiceringsår 2020
Publicerad vid Institutionen för neurovetenskap och fysiologi
Institutionen för kost- och idrottsvetenskap
Språk en
Länkar https://doi.org/10.3390/s20041118
https://www.mdpi.com/1424-8220/20/4...
Ämnesord ActiGraph, Cardiovascular disease, Frequency filtering, LIV, Multivariate analysis, Partial least squares regression, SCAPIS, Vigorous physical activity
Ämneskategorier Signalbehandling, Idrottsvetenskap, Epidemiologi, Folkhälsovetenskap

Sammanfattning

© 2020 by the authors. Licensee MDPI, Basel, Switzerland. An improved method of physical activity accelerometer data processing, involving a wider frequency filter than the most commonly used ActiGraph filter, has been shown to better capture variations in physical activity intensity in a lab setting. The aim of the study was to investigate how this improved measure of physical activity affected the relationship with markers of cardiometabolic health. Accelerometer data and markers of cardiometabolic health from 725 adults from two samples, LIV 2013 and SCAPIS pilot, were analyzed. The accelerometer data was processed using both the original ActiGraph method with a low‐pass cut‐off at 1.6 Hz and the improved method with a low‐pass cut‐off at 10 Hz. The relationship between the physical activity intensity spectrum and a cardiometabolic health composite score was investigated using partial least squares regression. The strongest association between physical activity and cardiometabolic health was shifted towards higher intensities with the 10 Hz output compared to the ActiGraph method. In addition, the total explained variance was higher with the improved method. The 10 Hz output enables correctly measuring and interpreting high intensity physical activity and shows that physical activity at this intensity is stronger related to cardiometabolic health compared to the most commonly used ActiGraph method.

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