Abstract
BACKGROUND: Total energy expenditure (TEE) is estimated in clinical practice as a combined measure of resting energy expenditure and physical activity level. Commonly available questionnaires to estimate physical activity level have not been validated in patients with kidney disease using the doubly-labelled water method.
METHODS: This prospective, cross-sectional study was conducted on 40 patients with chronic kidney disease stages 1-5 with the objective of validating two physical activity questionnaires: the Recent Physical Activity Questionnaire (RPAQ) and the Stanford 7-day recall questionnaire. TEE was measured using doubly-labelled water technique. TEE was also estimated using predicted resting energy expenditure and estimated physical activity measures from the questionnaires.
RESULTS: Measured TEE correlated better with TEE estimated from RPAQ compared to that from the Stanford questionnaire. In Bland-Altman analysis, TEE estimated from RPAQ had the least bias and narrower limits of agreement compared to the measured TEE. A metabolic equivalent of task value of 1.3 for the unaccounted time in RPAQ provided the best approximation of estimated TEE to the measured TEE.
CONCLUSIONS: RPAQ is an acceptable questionnaire tool for assessing physical activity level in patients with chronic kidney disease.
| Original language | English |
|---|---|
| Pages (from-to) | 59-66 |
| Number of pages | 8 |
| Journal | Journal of Human Nutrition and Dietetics |
| Volume | 29 |
| Issue number | 1 |
| Early online date | 15 Jul 2015 |
| DOIs | |
| Publication status | Published - 27 Jan 2016 |
Keywords
- Adult
- Aged
- Body Mass Index
- Body Weight
- Cross-Sectional Studies
- Energy Metabolism
- Female
- Humans
- Male
- Middle Aged
- Motor Activity
- Prospective Studies
- Renal Insufficiency, Chronic
- Surveys and Questionnaires
- Water