As we say in Spanish, “conocimiento es poder” or “knowledge is power”. This is the case for healthy behaviors which are linked to lower risk of cancer recurrence and improved survival. A growing ...
Background Validation of instruments used to measure physical activity patterns is essential when attempting to assess the effectiveness of physical activity interventions. Objectives To assess the ...
Energy expenditure was measured during a 14-day period with doubly labelled water (DLW). PAQA was administered as an interview at the end of the period, asking for physical activity in school, during ...
Despite extensive use over 40 years, physical activity questionnaires still show limited reliability and validity. Measurements have value in indicating conditions where an increase in physical ...
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