Comparing different accelerometer cut-points for sedentary time in children

Fischer, Claudia, Yildirim, Mine, Salmon, Jo and Chinapaw, Mai J. M. 2012, Comparing different accelerometer cut-points for sedentary time in children, Pediatric exercise science, vol. 24, no. 2, pp. 220-228.

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Title Comparing different accelerometer cut-points for sedentary time in children
Author(s) Fischer, Claudia
Yildirim, Mine
Salmon, Jo
Chinapaw, Mai J. M.
Journal name Pediatric exercise science
Volume number 24
Issue number 2
Start page 220
End page 228
Total pages 9
Publisher Human Kinetics
Place of publication Champaign, Ill.
Publication date 2012-05
ISSN 0899-8493
1543-2920
Keyword(s) behavior
overweight
obesity
girls
spent
physical activity
Summary Actigraph accelerometers are hypothesized to be valid measurements for assessing children's sedentary time. However, there is considerable variation in accelerometer cut-points used. Therefore, we compared the most common accelerometer sedentary cut-points of children performing sedentary behaviors. Actigraph Actitrainer uniaxial accelerometers were used to measure children's activity intensity (29 children, 5-11 years old) during different activities, namely playing computer games, nonelectronic sedentary games, watching television and playing outdoors. A structured protocol was the criterion for assessing the validity of four common cut-points (100, 300, 800, 1100 counts/minute). The median counts during all sedentary behaviors were below the lowest comparison cut-point of 100 cpm. The 75th percentile values for the sedentary behaviors were always below the cut-point of 300 cpm. Our results suggest that the cut-point of <100 cpm is the most appropriate.
Language eng
Field of Research 110699 Human Movement and Sports Science not elsewhere classified
Socio Economic Objective 920401 Behaviour and Health
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2012, Human Kinetics, Inc.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30046264

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