Comparison of two ActiGraph accelerometer generations in the assessment of physical activity in free living conditions.

Abstract : UNLABELLED: ABSTRACT: BACKGROUND: The aim of this study was to compare physical activity measured using GT1M ActiGraph and GT3X ActiGraph accelerometers in free living conditions. FINDINGS: Twenty-five adults wore GT1M and GT3X Actigraph accelerometers simultaneously during a typical weekday of activity. Data were uploaded from the monitor to a computer at the end of test (one day). Previously established thresholds were used for defining time spent at each level of physical activity, physical activity was assessed at varying intensities comparing data from the two accelerometers by ANOVA and Bland and Altman statistical analysis. The concordance correlation coefficient between accelerometers at each intensity level was 0.99. There were no significant differences between accelerometers at any of the activity levels. Differences between data obtained in minutes with the GT1M accelerometer and the GT3X monitor were to 0.56, 0.36, 0.52 and 0.44% for sedentary, light, moderate and vigorous, respectively. The Bland and Altman method showed good agreement between data obtained for the two accelerometers. CONCLUSIONS: Findings suggest that the two accelerometers provided similar results and therefore the GT3X may be used in clinical and epidemiological studies without additional calibration or validation studies.
Type de document :
Article dans une revue
BMC Research Notes, BioMed Central, 2012, 5 (1), pp.187. 〈10.1186/1756-0500-5-187〉
Liste complète des métadonnées

Littérature citée [19 références]  Voir  Masquer  Télécharger

http://www.hal.inserm.fr/inserm-00743409
Contributeur : Ed. Bmc <>
Soumis le : jeudi 18 octobre 2012 - 21:08:41
Dernière modification le : mercredi 29 novembre 2017 - 09:26:59
Document(s) archivé(s) le : samedi 19 janvier 2013 - 03:43:59

Fichiers

Identifiants

Collections

Citation

Jérémy Vanhelst, Jacques Mikulovic, Gilles Bui-Xuan, Olivier Dieu, Thomas Blondeau, et al.. Comparison of two ActiGraph accelerometer generations in the assessment of physical activity in free living conditions.. BMC Research Notes, BioMed Central, 2012, 5 (1), pp.187. 〈10.1186/1756-0500-5-187〉. 〈inserm-00743409〉

Partager

Métriques

Consultations de la notice

203

Téléchargements de fichiers

358