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Validation of a pouch-mounted activPAL3 accelerometer

journal contribution
posted on 06.12.2017, 00:00 by Robert Stanton, D Guertler, Mitchell Duncan, Corneel Vandelanotte
The activPAL accelerometer is a commonly used device for the assessment of physical activity in cross sectional and intervention research. These devices are usually attached directly to the skin; however, recent studies report problems such as skin irritation associated with this attachment method and therefore adequate alternate methods are needed. The aim of this study was to validate the use of an elasticised pouch to secure an activPAL3c (PAL Technologies, Glasgow, UK) accelerometer for the assessment of sedentary and physical activity behaviours during laboratory and free-living conditions. Twenty-eight healthy adults wore two activPAL3c accelerometers, one secured in an elasticised pouch, and one directly attached to the skin, on the anterior surface of the right thigh during laboratory-based walking at a self-selected pace, treadmill walking at 0.89 m s1, 1.56 m s1 and running at 2.2 m s1, and during free-living conditions. Paired samples t-tests and intraclass correlation coefficients were used to investigate the difference and agreement between accelerometer outputs. No statistically significant difference in step count between pouch-mounted and skin-mounted activPAL3c accelerometers was evident during walking at any speed under laboratory conditions. No statistically significant difference in step count, upright time, sitting time or postural transitions was found between pouch-mounted and skin-mounted activPAL3c accelerometers during free-living conditions. Intraclass correlation coefficients showed a high to very high level of agreement between pouch-mounted and skin-mounted activPAL3c accelerometers for each outcome variable. The use of an elasticised pouch to secure the activPAL3c accelerometer appears to be a valid method of attachment and may offer advantages over direct skin mounting.

History

Volume

40

Issue

4

Start Page

688

End Page

693

Number of Pages

6

eISSN

1879-2219

ISSN

0966-6362

Location

Netherlands

Publisher

Elsevier

Language

en-aus

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

Institute for Health and Social Science Research (IHSSR); School of Human, Health and Social Sciences (2013- ); School of Nursing and Midwifery (2013- );

Era Eligible

Yes

Journal

Gait & posture.

Exports

CQUniversity

Categories

Exports