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Validating Accelerometers for the Assessment of Body Position and Sedentary Behavior

Giurgiu, Marco; Bussmann, Johannes B.J.; Hill, Holger; Anedda, Bastian; Kronenwett, Marcel; Koch, Elena D.; Ebner-Priemer, Ulrich W.; Reichert, Markus

Abstract (englisch):
There is growing evidence that sedentary behavior is a risk factor for somatic and mental health. However, there is still a lack of objective field methods, which can assess both components of sedentary behavior: the postural (sitting/lying) and the movement intensity part. The purpose of the study was to compare the validity of different accelerometers (ActivPAL [thigh], ActiGraph [hip], move [hip], and move [thigh]). 20 adults (10 females; age 25.68 ± 4.55 years) participated in a structured protocol with a series of full- and semistandardized sessions under laboratory conditions. Direct observation via video recording was used as a criterion measure of body positions (sitting/lying vs. nonsitting/lying). By combining direct observation with metabolic equivalent tables, protocol activities were also categorized as sedentary or nonsedentary. Cohen’s kappa was calculated as an overall validity measure to compare accelerometer and video recordings. Across all conditions, for the measurement of sitting/lying body positions, the ActivPAL ([thigh], ĸ = .85) and Move 4 ([thigh], ĸ = .97) showed almost perfect agreement, whereas the Move 4 ([hip], ĸ = .78) and ActiGraph ([hip], ĸ = .67) showed substantial agreement. ... mehr



Originalveröffentlichung
DOI: 10.1123/jmpb.2019-0068
Zugehörige Institution(en) am KIT Institut für Sport und Sportwissenschaft (IfSS)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 09.2020
Sprache Englisch
Identifikator ISSN: 2575-6605, 2575-6613
KITopen-ID: 1000123940
Erschienen in Journal for the Measurement of Physical Behaviour
Band 3
Heft 3
Seiten 253–263
Schlagwörter accelerometry; sedentariness; validation
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