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Estimation of Physical Activity Levels Using Cell Phone Questionnaires: A Comparison With Accelerometry for Evaluation of Between-Subject and Within-Subject Variations
BACKGROUND: Physical activity promotes health and longevity. Further elaboration of the role of physical activity for human health in epidemiological studies on large samples requires accurate methods that are easy to use, cheap, and possible to repeat. The use of telecommunication technologies such...
Autores principales: | Bexelius, Christin, Sandin, Sven, Trolle Lagerros, Ylva, Litton, Jan-Eric, Löf, Marie |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Gunther Eysenbach
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3222159/ https://www.ncbi.nlm.nih.gov/pubmed/21946080 http://dx.doi.org/10.2196/jmir.1686 |
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