Facial reconstruction

Search LJMU Research Online

Browse Repository | Browse E-Theses

Evaluation of wrist and hip sedentary behaviour and moderate-to-vigorous physical activity raw acceleration cutpoints in older adults

Sanders, GJ, Boddy, LM, Sparks, AS, Curry, WB, Roe, B, Kaehne, A and Fairclough, SJ Evaluation of wrist and hip sedentary behaviour and moderate-to-vigorous physical activity raw acceleration cutpoints in older adults. Journal of Sports Sciences. ISSN 0264-0414 (Accepted)

[img] Text
Revised manuscript - with author details FINAL.pdf - Accepted Version
Restricted to Repository staff only

Download (540kB)

Abstract

Wrist-based accelerometers are now common in assessing physical activity (PA) and sedentary behaviour (SB) in population-based studies, but there is a scarcity of raw acceleration cutpoints in older adults. The study aimed to determine and evaluate wrist-based GENEActiv (GA) and hip-based ActiGraph GT3X+ (AG) raw acceleration cutpoints for SB and moderate-to-vigorous PA (MVPA) in older adults ≥60 years of age. A laboratory-based calibration analyses of 34 healthy older adults involved receiver operator characteristic (ROC) curves to determine raw acceleration cutpoints for SB and MVPA. ROC analysis revealed an area under the curve (AUC) of 0.88 for GA SB and MVPA, and 0.90 for AG SB and 0.94 for AG MVPA. Sensitivity optimised SB and specificity optimised MVPA GA cutpoints of 57 mg and 104 mg, and AG cutpoints of 15 mg and 69 mg were also generated, respectively. Cross-validation analysis revealed moderate agreement for GA and AG SB cutpoints, and fair to substantial agreement for GA and AG MVPA cutpoints, respectively. The resultant cutpoints can classify older adults as engaging in SB or not engaging in MVPA but the sensitivity optimised SB cutpoints should be interpreted with a degree of caution due to their modest cross-validation results.

Item Type: Article
Uncontrolled Keywords: 1106 Human Movement And Sports Science, 1302 Curriculum And Pedagogy
Subjects: R Medicine > RC Internal medicine > RC1200 Sports Medicine
Divisions: Sport & Exercise Sciences
Publisher: Taylor & Francis
Date Deposited: 28 Nov 2018 09:56
Last Modified: 28 Nov 2018 10:03
URI: http://researchonline.ljmu.ac.uk/id/eprint/9730

Actions (login required)

View Item View Item