Assessment of Physical Activity and Energy Expenditure by GPS Combined With Accelerometry in Real-Life Conditions.

Détails

ID Serval
serval:BIB_46FC7562B305
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Titre
Assessment of Physical Activity and Energy Expenditure by GPS Combined With Accelerometry in Real-Life Conditions.
Périodique
Journal of Physical Activity and Health
Auteur(s)
Nguyen D.M., Lecoultre V., Sunami Y., Schutz Y.
ISSN
1543-5474 (Electronic)
ISSN-L
1543-3080
Statut éditorial
Publié
Date de publication
2012
Volume
10
Numéro
6
Pages
880-888
Langue
anglais
Résumé
Background: Physical activity (PA) and related energy expenditure (EE) is often assessed by means of a single technique. Because of inherent limitations, single techniques may not allow for an accurate assessment both PA and related EE. The aim of this study was to develop a model to accurately assess common PA types and durations and thus EE in free-living conditions, combining data from global positioning system (GPS) and 2 accelerometers. Methods: Forty-one volunteers participated in the study. First, a model was developed and adjusted to measured EE with a first group of subjects (Protocol I, n = 12) who performed 6 structured and supervised PA. Then, the model was validated over 2 experimental phases with 2 groups (n = 12 and n = 17) performing scheduled (Protocol I) and spontaneous common activities in real-life condition (Protocol II). Predicted EE was compared with actual EE as measured by portable indirect calorimetry. Results: In protocol I, performed PA types could be recognized with little error. The duration of each PA type could be predicted with an accuracy below 1 minute. Measured and predicted EE were strongly associated (r = .97, P < .001). Conclusion: Combining GPS and 2 accelerometers allows for an accurate assessment of PA and EE in free-living situations.
Pubmed
Web of science
Création de la notice
27/09/2013 19:46
Dernière modification de la notice
03/03/2018 16:48
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