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Estimates of physical activity patterns in older adults considering cardiovascular risk factors: A Comparison between the International Physical Activity Questionnaire and Actigraph GT3X+ Measurements
Umeå universitet, Medicinska fakulteten, Institutionen för samhällsmedicin och rehabilitering, Idrottsmedicin.
2015 (engelsk)Independent thesis Advanced level (degree of Master (One Year)), 20 poäng / 30 hpOppgave
Abstract [en]

Abstract

Background: Physical activity has emerged as a determining factor in reducing the risk of chronic diseases. Previous studies have shown that self-reported physical activity tending to be overestimated in comparison with physical activity measured objectively. In this study we investigate the consistency between those methods and the association to cardiovascular risk factors in older adults. Methods: The study population consisted of 1403 men and women aged 70, living in Umeå, Sweden. Physical activity was objectively assessed for seven days by the Actigraph GT3X+ accelerometer in intensity levels of light, moderate and vigorous. For self-reported assessment the International physical activity questionnaire was used. Data from the survey were calculated in metabolic equivalents minutes/week for walking, moderate and vigorous activity level. Results: Self-reported activity levels of moderate and vigorous correlated significantly with light activity measured by accelerometers for both men (r=0.21, p< 0.01) and women (r=0.19 p<0.01). Self-reported walking correlated with moderate activity level from the accelerometer, for men (r=0.40 p< 0.01) and for women (r= 0.40, p< 0.01). Waist, Body Mass Index and triglycerides were significant (p<0.01) for all activity levels measured by accelerometers in women. Individuals with BMI ≥ 25 showed stronger correlations between walking METs and light activity compared to individuals with BMI <25. Conclusion: Overall individuals at the aged of 70 tend to overestimate physical activity at higher intensities in IPAQ compared to accelerometers.

Keywords: Physical activity - Accelerometry - International Physical Activity Questionnaire - Measurement - Elderly

sted, utgiver, år, opplag, sider
2015. , s. 17
Emneord [en]
Physical activity - Accelerometry - International Physical Activity Questionnaire - Measurement - Elderly
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-105883OAI: oai:DiVA.org:umu-105883DiVA, id: diva2:838549
Eksternt samarbeid
Anna Nordström, handledare
Utdanningsprogram
Master program in Sports Medicine
Veileder
Examiner
Tilgjengelig fra: 2015-07-02 Laget: 2015-06-30 Sist oppdatert: 2016-02-03bibliografisk kontrollert

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