| 1. |
- Arnardóttir, Ragnheiður Harpa, et al.
(författare)
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Interval training compared with continuous training in patients with COPD
- 2007
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Ingår i: Respiratory Medicine. - : Elsevier BV. - 0954-6111 .- 1532-3064. ; 101:6, s. 1196-1204
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Tidskriftsartikel (refereegranskat)abstract
- The aim of this study was to compare the effects of interval training (3-min intervals) with continuous training on peak exercise capacity (W peak), physiological response, functional capacity, dyspnoea, mental health and health-related quality of life (HRQoL) in patients with moderate or severe COPD. Sixty patients exercised twice weekly for 16 weeks after randomisation to interval- or continuous training. Target intensity was 80% of baseline W peak in the interval group (I-group) and 65% in the continuous group (C-group). Patients were tested by spirometry, ergometer cycle test, cardiopulmonary test and a 12 min walk test. Dyspnoea was measured by the dyspnoea scale from Chronic Obstructive Disease Questionnaire (CRDQ), mental health by Hospital Anxiety and Depression scale (HAD) and HRQoL by the Medical Outcomes Survey Short Form 36 (SF-36). After training, W peak, peak oxygen uptake (VO2 peak) and exhaled carbon dioxide (VCO2 peak) increased significantly in both groups, no significant differences between the groups. Minute ventilation (VE peak) increased only in the C-group. At identical work rates (isotime) VO2, VCO2 and VE were significantly more decreased in the I-group than in the C-group (p<0.05). Functional capacity, dyspnoea, mental health, and HRQoL improved significantly in both groups, no difference between the groups. Interval training and continuous training were equally potent in improving peak exercise capacity, functional exercise capacity, dyspnoea, mental health and HRQoL in patients with moderate or severe COPD. At isotime, the physiological response to training differed between the groups, in favour of the interval training.
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| 2. |
- Arnardóttir, Ragnheiður Harpa, et al.
(författare)
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Peak exercise capacity estimated from incremental shuttle walking test in patients with COPD: A methodological study
- 2006
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Ingår i: Respiratory Research. - : Springer Science and Business Media LLC. - 1465-9921 .- 1465-993X. ; 7, s. 127-
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Tidskriftsartikel (refereegranskat)abstract
- Background: In patients with COPD, both laboratory exercise tests and field walking tests are used to assess physical performance. In laboratory tests, peak exercise capacity in watts ( W peak) and/or peak oxygen uptake (VO2 peak) are assessed, whereas the performance on walking tests usually is expressed as distance walked. The aim of the study was to investigate the relationship between an incremental shuttle walking test (ISWT) and two laboratory cycle tests in order to assess whether W peak could be estimated from an ISWT.Methods: Ninety-three patients with moderate or severe COPD performed an ISWT, an incremental cycle test (ICT) to measure W peak and a semi-steady-state cycle test with breath-by-breath gas exchange analysis (CPET) to measure VO2 peak. Routine equations for conversion between cycle tests were used to estimate W peak from measured VO2 peak (CPET). Conversion equation for estimation of W peak from ISWT was found by univariate regression.Results: There was a significant correlation between W peak and distance walked on ISWT x body weight (r=0.88, p<0.0001). The agreement between W peak measured by ICT and estimated from ISWT was similar to the agreement between measured W peak (ICT) and W peak estimated from measured VO2 peak by CPET.Conclusion: Peak exercise capacity measured by an incremental cycle test could be estimated from an ISWT with similar accuracy as when estimated from peak oxygen uptake in patients with COPD.
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| 3. |
- Arnardóttir, Ragnheiður Harpa, 1963-
(författare)
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Physical Training and Testing in Patients with Chronic Obstructive Pulmonary Disease (COPD)
- 2007
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The overall aims of the studies were to investigate the effects of different training modalities on exercise capacity and health-related quality of life (HRQoL) in patients with moderate or severe COPD and, further, to explore two of the physical tests used in pulmonary rehabilitation.In study I, the 12-minute walking distance (12MWD) did not increase on retesting in patients with exercise-induced hypoxemia (EIH) whereas 12MWD increased significantly on retesting in the non-EIH patients. In study II, we found that the incremental shuttle walking test was as good a predictor of peak exercise capacity (W peak) as peak oxygen uptake (VO2 peak) is. In study III, we investigated the effects of two different combination training programmes when training twice a week for eight weeks. One programme was mainly based on endurance training (group A) and the other on resistance training and callisthenics (group B). W peak and 12MWD increased in group A but not in group B. HRQoL, anxiety and depression were unchanged in both groups. Ratings of perceived exertion at rest were significantly lower in group A than in group B after training and during 12 months of follow-up. Twelve months post-training, 12MWD was back to baseline in group A, but significantly shorter than at baseline in group B. Thus, a short endurance training intervention delayed decline in 12MWD for at least one year. Patients with moderate and severe COPD responded to training in the same way. In study IV, both interval and continuous endurance training increased W peak, VO2 peak, peak exhaled carbon dioxide (VCO2 peak) and 12MWD. Likewise, HRQoL, dyspnoea during activities of daily life, anxiety and depression improved similarly in both groups. At a fixed, submaximal workload (isotime), the interval training reduced oxygen cost and ventilatory demand significantly more than the continuous training did.
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| 4. |
- Arne, Mats, et al.
(författare)
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COPD patients' perspectives at the time of diagnosis : a qualitative study
- 2007
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Ingår i: Primary Care Respiratory Journal. - : Springer Science and Business Media LLC. - 1471-4418 .- 1475-1534. ; 16:4, s. 215-221
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Tidskriftsartikel (refereegranskat)abstract
- Aims: To gain understanding of chronic obstructive pulmonary disease (COPD) patients´ perspectives and perceptions of their disease at the time of diagnosis. Methods: Qualitative study; grounded theory. Ten patients in primary care in Sweden, newly diagnosed with COPD or diagnosed with suspected COPD were interviewed. Results: The analysis created a process model with a core category “Consequences of smoking” and main categories “Shame”, “Appearance of symptoms”, “Adaptation”, “Reflection”, and “Action”. “Restrictions in physical capacity” was a key indicator of evolving disease and “Getting a diagnosis” was crucial for the patient. Conclusions: The COPD patient needs a clear diagnosis at an early stage. It is important to seize the moment when the presumptive COPD patient is receptive towards support and further action. To detect and support the patient, health professionals must be aware of minor symptoms and underlying mechanisms of possible shame.
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| 5. |
- Arne, Mats, 1954-, et al.
(författare)
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Physical activity and quality of life in subjects with chronic disease : chronic obstructive pulmonary disease compared with rheumatoid arthritis and diabetes mellitus
- 2009
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Ingår i: Scandinavian Journal of Primary Health Care. - : Informa UK Limited. - 0281-3432 .- 1502-7724. ; 27:3, s. 141-147
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVE: Chronic diseases interfere with the life situation of the affected person in different ways. The aim was to compare the burden of disease in three chronic diseases - chronic obstructive pulmonary disease (COPD), rheumatoid arthritis (RA), diabetes mellitus (DM) - and in healthy subjects, with a particular interest in physical activity, quality of life, and psychological health. DESIGN: Cross-sectional, observational study. SETTING AND SUBJECTS: Postal survey questionnaire to a stratified, random population of 68 460 subjects aged 18-84 years in Sweden. The subjects included were 40-84 years old (n = 43 589) and data were analysed for COPD (n = 526), RA (n = 1120), DM (n = 2149) and healthy subjects (n = 6960). RESULT: Some 84% of subjects with COPD, 74% (RA), 72% (DM), and 60% in healthy subjects (p < 0.001, COPD versus RA, DM, and healthy subjects) had a physical activity level considered too low to maintain good health according to guidelines. Quality of life (EuroQol five-dimension questionnaire, EQ-5D) was lower in COPD and RA than in DM. Anxiety/depression was more common in subjects with COPD (53%) than in those with RA (48%) and DM (35%) (p < 0.001, COPD versus RA and DM), whereas mobility problems were more common in RA (55%) than COPD (48%) and DM (36%) (p < 0.001, RA versus COPD and DM). All differences between groups remained significant after adjusting for age, sex, and socioeconomic background factors. CONCLUSION: Subjects with chronic diseases had a low level of physical activity, most evident in subjects with COPD. COPD and RA had a higher negative impact on quality of life than DM. Our results indicate that increased attention regarding physical inactivity in subjects with chronic diseases is needed to minimize the burden of disease.
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| 8. |
- Emtner, Margareta
(författare)
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Astma
- 2008
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Ingår i: FYSS 2008. - Stockholm : Statens folkhälsoinstitut. - 9789172575431 ; , s. 226-235
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- Nedsatt fysisk prestationsförmåga är vanlig hos såväl vuxna som barn med astma. En kroniskobstruktion av luftvägarna samt en ökad känslighet för olika stimuli (exempelvisfysisk ansträngning) bidrar till den nedsatta prestationsförmågan. Fysisk aktivitet är värdefulloch nödvändig för alla personer med astma. Fysisk träning förbättrar den fysiskaförmågan, minskar dyspnén (andfåddheten) och förbättrar de ansträngningsutlösta andningsbesvären.Personer med en mild till måttlig grad av obstruktivitet kan delta i fysiskträning på samma villkor som friska. Träningen bör bestå av aerob träning (konditionsträning),styrketräning och rörlighetsträning (se tabell nedan). Lämpliga aktiviteter är simträning,bollspel, cykelträning, gångträning samt land- eller vattengymnastik. Personermed grav obstruktivitet bör rekommenderas styrketräning, rörlighetsträning och lätt fysiskaktivitet.
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| 9. |
- Emtner, Margareta, 1948-
(författare)
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Astma
- 2009
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Ingår i: Ordination motion. - : Brombergs Bokförlag. - 9789173372244
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Bokkapitel (populärvet., debatt m.m.)
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