Measures of Physical Activity Using Cell Phones: Validation Using Criterion Methods

BACKGROUND: Physical activity is associated with reduced risks of many chronic diseases. Data collected on physical activity in large epidemiological studies is often based on paper questionnaires. The validity of these questionnaires is debated, and more effective methods are needed. OBJECTIVE: Thi...

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Hlavní autoři: Bexelius, Christin, Löf, Marie, Sandin, Sven, Trolle Lagerros, Ylva, Forsum, Elisabet, Litton, Jan-Eric
Médium: Artigo
Jazyk:Inglês
Vydáno: Gunther Eysenbach 2010
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Original Paper
On-line přístup:https://ncbi.nlm.nih.gov/pmc/articles/PMC2821583/
https://ncbi.nlm.nih.gov/pubmed/20118036
https://ncbi.nlm.nih.govhttp://dx.doi.org/10.2196/jmir.1298
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