Increased physical activity improves aerobic fitness, but not functional walking capacity, in severely obese subjects participating in a lifestyle intervention
| Autor: | Sigmund A. Anderssen, Eivind Aadland, John Roger Andersen, Randi Jepsen |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Gerontology
Male medicine.medical_specialty obesity Sports medicine health promotion Physical fitness exercise test Physical Therapy Sports Therapy and Rehabilitation Walking Motor Activity middle aged medicine accelerometry Aerobic exercise Humans VDP::Medisinske Fag: 700 skin and connective tissue diseases cardio-respiratory fitness Exercise Tolerance anthropometry exercise therapy obesity morbid /physiopathology /therapy 6-minute walk test exercise business.industry adult motor activity /physiology Rehabilitation risk reduction behavior Cardiorespiratory fitness General Medicine exercise /physiology Anthropometry medicine.disease exercise tolerance /physiology Obesity Teacher education Obesity Morbid Health promotion Physical therapy physical fitness walking /physiology Female sense organs physical fitness /physiology business |
| Zdroj: | Journal of Rehabilitation Medicine |
| Popis: | From the 1Sogn og Fjordane University College, Faculty of Health Studies, 2 Førde Central Hospital, Department of Surgery, 3Norwegian School of Sport Sciences, Department of Sports Medicine, Oslo and 4Sogn og Fjordane University College, Faculty of Teacher Education and Sports, Sogndal, Norway Objective: To determine the relationship between change in physical activity level and change in directly measured maximal aerobic fitness in severely obese subjects participating in a 1-year lifestyle intervention, and to determine whether change in 6-min walk test (6MWT) could be used as an indicator of change in aerobic fitness. Methods: Complete data on aerobic fitness (maximal oxygen consumption (VO2max) and time to exhaustion on the VO2max test), 6MWT, and physical activity (Actigraph GT1M accelerometer) were obtained for 21 subjects (mean age 42.6 years (standard deviation (SD) 11.0 years); mean body mass index 39.6 (SD 4.5) kg/m2). Multiple linear regression (controlling for change in body mass index) was used to analyse the relationships for changes in: (i) physical activity vs aerobic fitness and 6MWT; and (ii) aerobic fitness vs 6MWT. Results: Change in physical activity level was related to VO2max and time to exhaustion (partial r > 0.63, p < 0.003). No significant relationships were found between changes in aerobic fitness and 6MWT (partial r < 0.22, p > 0.351) or between changes in physical activity level and 6MWT (partial r = 0.15, p = 0.531). Conclusion: Increased physical activity level over 1 year resulted in increased aerobic fitness in severely obese subjects. Although the sample size was small, these results suggest that change in 6MWT might not be a good indicator of maximal change in aerobic fitness in this population. Key words: physical fitness; cardio-respiratory fitness |
| Databáze: | OpenAIRE |
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