Please use this identifier to cite or link to this item: http://buratest.brunel.ac.uk/handle/2438/11580
Title: Ability of RT3 accelerometer cut points to detect physical activity intensity in ambulatory children with cerebral palsy
Authors: Ryan, J
Walsh, M
Gormley, J
Keywords: Adolescent;Walking;Oxygen consumption;Mobility limitation
Issue Date: 2014
Publisher: Human Kinetics
Citation: Adapted Physical Activity Quarterly, 31(4): pp. 310 - 324, (2014)
Abstract: This study investigated the ability of published cut points for the RT3 accelerometer to differentiate between levels of physical activity intensity in children with cerebral palsy (CP). Oxygen consumption (metabolic equivalents; METs) and RT3 data (counts/min) were measured during rest and 5 walking trials. METs and corresponding counts/min were classified as sedentary, light physical activity (LPA), and moderate to vigorous physical activity (MVPA) according to MET thresholds. Counts were also classified according to published cut points. A published cut point exhibited an excellent ability to classify sedentary activity (sensitivity = 89.5%, specificity = 100.0%). Classification accuracy decreased when published cut points were used to classify LPA (sensitivity = 88.9%, specificity = 79.6%) and MVPA (sensitivity = 70%, specificity = 95–97%). Derivation of a new cut point improved classification of both LPA and MVPA. Applying published cut points to RT3 accelerometer data collected in children with CP may result in misclassification of LPA and MVPA.
URI: http://journals.humankinetics.com/apaq-back-issues/apaq-volume-31-issue-4-october/ability-of-rt3-accelerometer-cut-points-to-detect-physical-activity-intensity-in-ambulatory-children-with-cerebral-palsy
http://bura.brunel.ac.uk/handle/2438/11580
DOI: http://dx.doi.org/10.1123/apaq.2013-0088
ISSN: 0736-5829
Appears in Collections:Dept of Clinical Sciences Research Papers

Files in This Item:
File Description SizeFormat 
Fulltext.pdf277.81 kBAdobe PDFView/Open


Items in BURA are protected by copyright, with all rights reserved, unless otherwise indicated.