Estimation of Physical Activity Levels Using Cell Phone Questionnaires: A Comparison With Accelerometry for Evaluation of Between-Subject and Within-Subject Variations
Open Access
- 25 September 2011
- journal article
- research article
- Published by JMIR Publications Inc. in Journal of Medical Internet Research
- Vol. 13 (3), e70
- https://doi.org/10.2196/jmir.1686
Abstract
Estimation of Physical Activity Levels Using Cell Phone Questionnaires: A Comparison With Accelerometry for Evaluation of Between-Subject and Within-Subject VariationsKeywords
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