The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.
Agreement between activPAL and ActiGraph for assessing children's sedentary time
Open accessAbstract
BACKGROUND: Accelerometers have been used to determine the amount of time that children spend sedentary. However, as time spent sitting may be detrimental to health, research is needed to examine whether accelerometer sedentary cut-points reflect the amount of time children spend sitting. The aim of this study was to: a) examine agreement between ActiGraph (AG) cut-points for sedentary time and objectively-assessed periods of free-living sitting and sitting plus standing time using the activPAL (aP); and b) identify cut-points to determine time spent sitting and sitting plus standing. METHODS: Forty-eight children (54% boys) aged 8-12 years wore a waist-mounted AG and thigh-mounted aP for two consecutive school days (9-3:30 pm). AG data were analyzed using 17 cut-points between 50-850 counts·min-1 in 50 counts·min-1 increments to determine sedentary time during class-time, break time and school hours. Sitting and sitting plus standing time were obtained from the aP for these periods. Limits of agreement were computed to evaluate bias between AG50 to AG850 sedentary time and sitting and sitting plus standing time. Receiver Operator Characteristic (ROC) analyses identified AG cut-points that maximized sensitivity and specificity for sitting and sitting plus standing time. RESULTS: The smallest mean bias between aP sitting time and AG sedentary time was AG150 for class time (3.8 minutes), AG50 for break time (-0.8 minutes), and AG100 for school hours (-5.2 minutes). For sitting plus standing time, the smallest bias was observed for AG850. ROC analyses revealed an optimal cut-point of 96 counts·min-1 (AUC = 0.75) for sitting time, which had acceptable sensitivity (71.7%) and specificity (67.8%). No optimal cut-point was obtained for sitting plus standing (AUC = 0.51). CONCLUSIONS: Estimates of free-living sitting time in children during school hours can be obtained using an AG cut-point of 100 counts·min-1. Higher sedentary cut-points may capture both sitting and standing time.
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Cited by
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“, inclinometers) may better distinguish these behaviours (Ridgers et al. 2012).”
BackgroundCarson, V., Hunter, S., Kuzik, N., Gray, C. E., Poitras, V. J., Chaput, J.-P., Saunders, T. J., Katzmarzyk, P. T., Okely, A. D., Connor Gorber, S., et al. (2016) · Applied Physiology, Nutrition, and Metabolism · doi:10.1139/apnm-2015-0630 · Cited by 1,380
Methods of Measurement in epidemiology: Sedentary Behaviour
Atkin, A. J., Gorely, T., Clemes, S. A., Yates, T., Edwardson, C., Brage, S., Salmon, J., Marshall, S. J., & Biddle, S. J. (2012) · International Journal of Epidemiology · doi:10.1093/ije/dys118 · Cited by 518
Self-citationEvaluation of raw acceleration sedentary thresholds in children and adults
Hildebrand, M., Hansen, B. H., van Hees, V. T., & Ekelund, U. (2017) · Scandinavian Journal of Medicine & Science in Sports · doi:10.1111/sms.12795 · Cited by 425
Carson, V., Tremblay, M. S., Chaput, J.-P., & Chastin, S. F. M. (2016) · Applied Physiology, Nutrition, and Metabolism · doi:10.1139/apnm-2016-0026 · Cited by 414
“To account for survey design effects, standard errors and coefficients of variation were estimated with the bootstrap technique (Rao et al. 1992; Rust and Rao, 1996), using specific degrees of freedom outlined by the CHMS data user guide (Statistics Canada 2015a).”
Method
Metadata
- Authors
- Ridgers, N. D., Salmon, J., Ridley, K., O'Connell, E., Arundell, L., & Timperio, A.
- Venue
- International Journal of Behavioral Nutrition and Physical Activity
- Published
- 2012
- Volume
- 9
- Issue
- 1
- Pages
- 15
- ISSN
- 1479-5868 (ISSN-L)
- OpenAlex
- W2166476113
- Cited by
- 191
- References
- 9
- FWCI
- 10.76
- Type
- journal article
- Language
- en
- Open access
- gold
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- Ridgers, N. D., Salmon, J., Ridley, K., O'Connell, E., Arundell, L., & Timperio, A. (2012). Agreement between activPAL and ActiGraph for assessing children's sedentary time. International Journal of Behavioral Nutrition and Physical Activity. https://doi.org/10.1186/1479-5868-9-15
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