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The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk

The purpose of this study was to determine the validity and intramodel reliability of the Omron HJ-005 pedometer under free-living conditions and over a 400-meter walk. For the first part of the study, data were analysed from subjects who wore both motion sensors (the Kenz Lifecorder e-Steps acceler...

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Main Authors: Chee, H. P., Abu Saad, Hazizi, Mohd Yusof, Barakatun Nisak, Mohd Taib, Mohd Nasir
Format: Article
Published: School of Health Sciences, Universiti Sains Malaysia 2014
Online Access:http://psasir.upm.edu.my/id/eprint/35831/
http://hej.kk.usm.my/volume5no1.php
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spelling my.upm.eprints.358312016-02-10T08:32:53Z http://psasir.upm.edu.my/id/eprint/35831/ The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk Chee, H. P. Abu Saad, Hazizi Mohd Yusof, Barakatun Nisak Mohd Taib, Mohd Nasir The purpose of this study was to determine the validity and intramodel reliability of the Omron HJ-005 pedometer under free-living conditions and over a 400-meter walk. For the first part of the study, data were analysed from subjects who wore both motion sensors (the Kenz Lifecorder e-Steps accelerometer and the Omron HJ-005 pedometer) during waking hours for two consecutive weekdays and one weekend day. For the second part of the study, subjects walked 400 meters around an outdoor track while wearing two Omron HJ-005 pedometers (one each on the right and left side of the waist and centred over the foot). Under free-living conditions, the subjects reported an averaged 6,588 ± 1,240 accelerometer steps per day and 7,676 ± 1,327 pedometer steps per day. There was a significant correlation between the mean accelerometer outputs and the mean pedometer outputs for two consecutive weekdays and one weekend day (r = 0.954, p < 0.001). The mean difference in steps detected between the Kenz Lifecorder e-Steps accelerometer and the Omron HJ-005 pedometer was 1,088 ± 399 steps per day [t (53) = 20.037, p < 0.001]. On a 400-meter outdoor track, the Omron HJ-005 pedometer reported step counts with an absolute percent error (APE) of less than 5% for pedometers at both the right and left sides of the waist (at slow, moderate and fast paces) compared to manual step counts. Pedometer step counts at the right and left sides of the waist were significantly correlated (intra-class correlation coefficient >0.9) at slow, moderate and fast paces. In conclusion, the Omron HJ-005 pedometer demonstrated validity and intramodel reliability over a 400-meter walk at slow, moderate and fast paces. The correlation between the outputs from the Kenz Lifecorder e-Steps accelerometer and the Omron HJ-005 pedometer supports the interchangeability of the outputs (steps per day) from two motion sensors if only relative values are desired. School of Health Sciences, Universiti Sains Malaysia 2014-01 Article PeerReviewed Chee, H. P. and Abu Saad, Hazizi and Mohd Yusof, Barakatun Nisak and Mohd Taib, Mohd Nasir (2014) The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk. Health and the Environment Journal, 5 (1). pp. 98-112. ISSN 180-1126 http://hej.kk.usm.my/volume5no1.php
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description The purpose of this study was to determine the validity and intramodel reliability of the Omron HJ-005 pedometer under free-living conditions and over a 400-meter walk. For the first part of the study, data were analysed from subjects who wore both motion sensors (the Kenz Lifecorder e-Steps accelerometer and the Omron HJ-005 pedometer) during waking hours for two consecutive weekdays and one weekend day. For the second part of the study, subjects walked 400 meters around an outdoor track while wearing two Omron HJ-005 pedometers (one each on the right and left side of the waist and centred over the foot). Under free-living conditions, the subjects reported an averaged 6,588 ± 1,240 accelerometer steps per day and 7,676 ± 1,327 pedometer steps per day. There was a significant correlation between the mean accelerometer outputs and the mean pedometer outputs for two consecutive weekdays and one weekend day (r = 0.954, p < 0.001). The mean difference in steps detected between the Kenz Lifecorder e-Steps accelerometer and the Omron HJ-005 pedometer was 1,088 ± 399 steps per day [t (53) = 20.037, p < 0.001]. On a 400-meter outdoor track, the Omron HJ-005 pedometer reported step counts with an absolute percent error (APE) of less than 5% for pedometers at both the right and left sides of the waist (at slow, moderate and fast paces) compared to manual step counts. Pedometer step counts at the right and left sides of the waist were significantly correlated (intra-class correlation coefficient >0.9) at slow, moderate and fast paces. In conclusion, the Omron HJ-005 pedometer demonstrated validity and intramodel reliability over a 400-meter walk at slow, moderate and fast paces. The correlation between the outputs from the Kenz Lifecorder e-Steps accelerometer and the Omron HJ-005 pedometer supports the interchangeability of the outputs (steps per day) from two motion sensors if only relative values are desired.
format Article
author Chee, H. P.
Abu Saad, Hazizi
Mohd Yusof, Barakatun Nisak
Mohd Taib, Mohd Nasir
spellingShingle Chee, H. P.
Abu Saad, Hazizi
Mohd Yusof, Barakatun Nisak
Mohd Taib, Mohd Nasir
The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk
author_facet Chee, H. P.
Abu Saad, Hazizi
Mohd Yusof, Barakatun Nisak
Mohd Taib, Mohd Nasir
author_sort Chee, H. P.
title The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk
title_short The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk
title_full The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk
title_fullStr The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk
title_full_unstemmed The validity and intramodel reliability of the Omron HJ-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk
title_sort validity and intramodel reliability of the omron hj-005 pedometer for quantifying steps in free-living conditions and over a 400-meter walk
publisher School of Health Sciences, Universiti Sains Malaysia
publishDate 2014
url http://psasir.upm.edu.my/id/eprint/35831/
http://hej.kk.usm.my/volume5no1.php
_version_ 1643831570380881920
score 13.211869

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