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Importance of epoch length and registration time on accelerometer measurements in younger children.

Dencker, Magnus LU ; Svensson, Jonas LU ; El-Naaman, B; Bugge, A and Andersen, L B (2012) In Journal of Sports Medicine and Physical Fitness 52(2). p.115-121
Abstract
AIM:

The aim of this study was to investigate the effect of epoch length on accumulation of minutes of physical activity per day over a spectrum of intensities, and the effect that selection of number of hours of acceptable registration required per day had on number of days that were considered acceptable.



METHODS:

Participants were 696 children (369 boys and 327 girls) aged 6.7±0.4 yrs, from a population-based cohort. Physical activity was assessed by the Actigraph accelerometer for four days.



RESULTS:

Main findings were that epoch length had a profound impact on accumulation of minutes of physical activity per day for higher intensities, whereas it had no effect on mean... (More)
AIM:

The aim of this study was to investigate the effect of epoch length on accumulation of minutes of physical activity per day over a spectrum of intensities, and the effect that selection of number of hours of acceptable registration required per day had on number of days that were considered acceptable.



METHODS:

Participants were 696 children (369 boys and 327 girls) aged 6.7±0.4 yrs, from a population-based cohort. Physical activity was assessed by the Actigraph accelerometer for four days.



RESULTS:

Main findings were that epoch length had a profound impact on accumulation of minutes of physical activity per day for higher intensities, whereas it had no effect on mean counts per minute. The chosen number of hours for an acceptable registration per day heavily influenced the number of days that were considered acceptable.



CONCLUSION:

The findings in the present investigation should be taken into consideration when planning objective measurements of daily physical activity in younger children, and highlight the need for setting international recommendations for physical activity measurements with accelerometers, if different studies are to be comparable (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Sports Medicine and Physical Fitness
volume
52
issue
2
pages
115 - 121
publisher
Edizioni Minerva Medica
external identifiers
  • WOS:000305363200001
  • PMID:22525645
  • Scopus:84862539282
ISSN
0022-4707
language
English
LU publication?
yes
id
f4b057ae-8801-4ad6-b96c-06dceb67bfb1 (old id 2519170)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/22525645?dopt=Abstract
date added to LUP
2012-05-07 11:20:21
date last changed
2017-01-29 04:20:38
@article{f4b057ae-8801-4ad6-b96c-06dceb67bfb1,
  abstract     = {AIM:<br/><br>
The aim of this study was to investigate the effect of epoch length on accumulation of minutes of physical activity per day over a spectrum of intensities, and the effect that selection of number of hours of acceptable registration required per day had on number of days that were considered acceptable.<br/><br>
<br/><br>
METHODS:<br/><br>
Participants were 696 children (369 boys and 327 girls) aged 6.7±0.4 yrs, from a population-based cohort. Physical activity was assessed by the Actigraph accelerometer for four days.<br/><br>
<br/><br>
RESULTS:<br/><br>
Main findings were that epoch length had a profound impact on accumulation of minutes of physical activity per day for higher intensities, whereas it had no effect on mean counts per minute. The chosen number of hours for an acceptable registration per day heavily influenced the number of days that were considered acceptable.<br/><br>
<br/><br>
CONCLUSION:<br/><br>
The findings in the present investigation should be taken into consideration when planning objective measurements of daily physical activity in younger children, and highlight the need for setting international recommendations for physical activity measurements with accelerometers, if different studies are to be comparable},
  author       = {Dencker, Magnus and Svensson, Jonas and El-Naaman, B and Bugge, A and Andersen, L B},
  issn         = {0022-4707},
  language     = {eng},
  number       = {2},
  pages        = {115--121},
  publisher    = {Edizioni Minerva Medica},
  series       = {Journal of Sports Medicine and Physical Fitness},
  title        = {Importance of epoch length and registration time on accelerometer measurements in younger children.},
  volume       = {52},
  year         = {2012},
}