Reported frequency of physical activity in a large epidemiological study: relationship to specific activities and repeatability over time.
BACKGROUND: How overall physical activity relates to specific activities and how reported activity changes over time may influence interpretation of observed associations between physical activity and health. We examine the relationships between various physical activities self-reported at different...
| Main Authors: | , , , , , |
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| פורמט: | Journal article |
| שפה: | English |
| יצא לאור: |
BioMed Central
2011
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