Can the intensity of physical activity be accurately measured in older adults using questionnaires? |
| |
| Institution: | 1. UC Research Institute for Sport and Exercise, University of Canberra, Australia;2. Discipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Australia;3. Centre for Research on Ageing, Health and Wellbeing, Australian National University, Australia;4. School of Psychology, University of New South Wales, Australia;5. Neuroscience Research Australia, Australia;1. University of Vienna, Centre for Sports Science and University Sports, Austria;2. Medical University of Vienna, Department of Physical Medicine, Rehabilitation and Occupational Medicine, Comprehensive Cancer Center, Austria;3. Medical University of Vienna, Section of Medical Statistics, CeMSIIS, Austria;4. Edith Cowan University, Centre for Exercise and Sport Science Research, Australia;1. England & Wales Cricket Board, National Cricket Performance Centre, Loughborough University, UK;2. Science and Medicine Department, England & Wales Cricket Board, UK;3. Science and Medicine Department, English Institute of Sport, UK;1. School of Life Sciences, Pharmacy and Chemistry, Faculty of Science Engineering and Computing, Kingston University, Kingston upon Thames, UK;2. LGC, Middlesex, UK;1. Research Institute for Sport and Exercise, University of Canberra, Australia;2. Faculty of Health, University of Canberra, Australia;3. School of Exercise and Nutrition Sciences, Queensland University of Technology, Australia;4. Department of Physiology, Australian Institute of Sport, Australia;5. Discipline of Sport and Exercise Science, Faculty of Health, University of Canberra, Australia |
| |
| Abstract: | ObjectivesThis study assessed the accuracy of two questionnaires for measuring the duration of physical activity (PA) by intensity compared to an objective measure in older adults.DesignCross-sectional observationMethodsA total of 169 (female = 43.8%) participants aged 73–78 years (mean: 75.1 y; SD: 1.3) wore a SenseWear? Armband (SWA) for seven-days and reported the duration of PA by intensity with a Physical Activity Recall (PAR) questionnaire and the Active Australia Survey (AAS). In addition, the duration of moderate-to-vigorous-PA (MVPA) and overall active time, weighted for intensity (Total PA; MET: min/week) was assessed. Univariate general linear models were used to compare the questionnaire and SWA measures of PA while controlling for age, sex and education.ResultsThe PAR was associated with SWA moderate intensity PA (b = 0.19; 95% CI 0.03–0.35), MVPA (b = 0.19; 95% CI 0.02–0.37) and Total PA (b = 0.33; 95% CI 0.11–0.55). Although significant correlations were present, the models explained a small proportion of the variance in the SWA variables. The AAS was not associated with the SWA for any PA outcome. There was also significant under-reporting of PA duration for both questionnaires in comparison to the SWA.ConclusionsThe PAR questionnaire may be suitable for determining the effect of greater levels of PA on health outcomes. However, neither questionnaire can be considered valid in determining the duration of PA divided by intensity. In addition, questionnaire and objectively measured PA are not equivalent and absolute measures of PA derived from questionnaires should be interpreted with caution. |
| |
| Keywords: | SenseWear Armband Active Australia Survey Epidemiology Aged Surveys and questionnaires Physical exertion |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
