Non-traditional wearing positions of pedometers: validity and reliability of the Omron HJ-203-ED pedometer under controlled and free-living conditions

De Cocker, Katrien A. and De Meyer, Jotie and De Bourdeaudhuij, Ilse M. and Cardon, Greet M. (2012) Non-traditional wearing positions of pedometers: validity and reliability of the Omron HJ-203-ED pedometer under controlled and free-living conditions. Journal of Science and Medicine in Sport, 15 (5). pp. 418-424. ISSN 1440-2440


Abstract

OBJECTIVES: To test the validity and intra-instrument reliability of the HJ-203 Omron pedometer when worn in different positions, under controlled and free-living conditions. DESIGN: Cross-sectional.

METHODS: Forty healthy adults (20 men, 29.5+/-7.7 years) participated in three controlled tests, i.e. 20 step test, stair climbing (up and down), and treadmill walking (five bouts at different speeds). All participants wore a HJ-203 pedometer in the pants pocket, in a carrier bag, and around the neck. Fifty-four adults (23 men, 33.9+/-11.1 years) participated in a free-living conditions test, wearing a HJ-203 in the pants pocket and around the neck during one day.

RESULTS: During controlled tests, absolute percentage error ranged between 0.1% and 14.0%. Accuracy was influenced by wearing position (p<0.001), walking speed (p<0.001), and wearing positionxwalking speed (p=0.001). Accuracy was poor for pedometers worn in the pants pocket, especially at slower speeds; and best when worn around the neck. During free-living conditions, APE ranged between 30.7% and 36.9% and did not differ statistically between pants pocket and neck position. Intra-instrument reliability varied for controlled tests (ICC=0.14-0.96) and was acceptable during free-living conditions (ICC=0.94).

CONCLUSIONS: The HJ-203 Omron pedometer showed acceptable accuracy for all wearing positions during stairs walking and treadmill walking at higher speeds; but limited accuracy during free-living conditions when worn at non-traditional wearing positions (necklace and pants pocket). Reliability was acceptable during treadmill walking at higher speeds and free-living conditions.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Permanent restricted access to Published version in accordance with the copyright policy of the publisher.
Faculty/School / Institute/Centre: No Faculty
Faculty/School / Institute/Centre: No Faculty
Date Deposited: 23 Oct 2019 23:53
Last Modified: 24 Oct 2019 02:10
Uncontrolled Keywords: step counter; accuracy; physical activity; Yamax Digiwalker
Fields of Research (2008): 11 Medical and Health Sciences > 1117 Public Health and Health Services > 111799 Public Health and Health Services not elsewhere classified
11 Medical and Health Sciences > 1106 Human Movement and Sports Science > 110699 Human Movement and Sports Science not elsewhere classified
Fields of Research (2020): 42 HEALTH SCIENCES > 4299 Other health sciences > 429999 Other health sciences not elsewhere classified
42 HEALTH SCIENCES > 4207 Sports science and exercise > 420799 Sports science and exercise not elsewhere classified
Identification Number or DOI: https://doi.org/10.1016/j.jsams.2012.02.002
URI: http://eprints.usq.edu.au/id/eprint/37050

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