Physical training for asthma
ABSTRACT Physical training programmes have been designed for asthmatic subjects with the aim of improving physical fitness, neuromuscular coordination and self-confidence. Habitual physical activity increases physical fitness and lowers ventilation during mild and moderate exercise thereby reducing the likelihood of provoking exercise induced asthma. Exercise training may also reduce the perception of breathlessness through a number of mechanisms including strengthening respiratory muscles. Subjectively, many asthmatics report that they are symptomatically better when fit, but results from trials have varied and have been difficult to compare because of different designs and training protocols.
The purpose of this review was to assess evidence for the efficacy and effectiveness of physical training in asthma.
We searched the Cochrane Airways Group Specialised Register, SportDiscus and the Science Citation Index up to May 2005.
Randomised trials in asthmatic subjects undertaking physical training. Subjects had to be eight years and older. Physical training had to be undertaken for at least 20 to 30 minutes, two to three times a week, over a minimum of four weeks.
Eligibility for inclusion and quality of trials were assessed independently by two reviewers.
Thirteen studies (455 participants) were included in this review. Physical training had no effect on resting lung function or the number of days of wheeze. The results of this review have shown that lung function and wheeze is not worsened by physical training in patients with asthma. Physical training improved cardiopulmonary fitness as measured by an increase in maximum oxygen uptake of 5.4 ml/kg/min (95% confidence interval 4.2 to 6.6) and maximum expiratory ventilation 6.0 L/min (95% confidence interval 1.5 to 10.4). There were no data concerning quality of life measurements.
In people with asthma, physical training can improve cardiopulmonary fitness without changing lung function. It is not known whether improved fitness is translated into improved quality of life. It is comforting to know that physical training does not have an adverse effect on lung function and wheeze in patients with asthma. Therefore, there is no reason why patients with asthma should not participate in regular physical activity.
SourceAvailable from: Fakhreddin Yaghoob nezhad[Show abstract] [Hide abstract]
ABSTRACT: Abstract Background: Physical activity is an effective factor in pulmonary functions and sleep quality. However information on the rate of changes in exercise-induced respiratory parameters associated with sleep quality is not available. The aim of this study was to compare the parameters of the sleep quality and respiratory function in active and none active men. Methods: The present study is a semi-experimental. Thirty healthy young men with an age range of 20-24 years were enrolled in this study. Then the participants were randomly assigned to either an active (N=15) or none active (N=15) groups. Respiratory parameters including FEV1 (forced expiratory volume in 1second %) , FEV1, MVV (maximum voluntary ventilation VC (vital capacity), FVC (forced vital capacity), MEF25% and MEF75% (maximum forced flow rates at 25and 75% of expired FVC) were measured by spirometer. Pittsburg Sleep Quality Index questionnaire (PSQI) was used to evaluate sleep quality. The research data were analyzed using the independent t test, Pearson’s correlation coefficient and Multiple Linear Regression. Results: The active group showed significant increased in FVC(p=0.023), VC(p=0.002), MVV(p=0.001), FEV1(p=0.001), %FEV1(p=0.031), MEF25%(p=0.026), EF75%(p=0.042) when compared with the none active group. Score of Sleep Quality Index was significantly lower in the active group (p= 0.002). In the active group with regarding to increasing in per unit of, FEV1, MVV, VC, FVC and MEF75 % respectively equal to 0.217, 0.127, 0.370, 0.386 and 0.194 a reduction in per unit score of sleep quality was observed(p>0.05). Conclusions: The results of this study show the beneficial effect of physical activity by increasing pulmonary volumes and capacities and as a result improving sleep quality. However, correlation analyses show no significant relationship between respiratory parameters and score of sleep quality.
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ABSTRACT: Few studies have been conducted on the effects of aerobic exercise in children with asthma, particularly on the inflammatory component and functional outcomes. This study evaluated the effect of aerobic exercise on inflammation, functional capacity, respiratory muscle strength, quality of life and symptoms scores in asthmatic children. This was a 6-week randomized trial (NCT0192052) of 33 moderately asthmatic children (6-17 years). Patients were randomized aerobic training (exercise group; n=14), while another group did not exercise (control; n=19). Primary endpoint was evaluations serum cytokines (IL-17, IFN, TNF, IL-10, IL-6, IL-4 and IL-2) assessed by flow cytometry. The six-minute walk test, pulmonary function, quality of life and symptoms (asthma-free days) were secondary endpoint. The Mann-Whitney test was used to evaluate the independent variables and the Wilcoxon test for paired variables. The t-test was used for the remaining calculations. Significance was determined at 5%. Aerobic training failed to modify the inflammatory component. In the exercise group, an increase occurred in functional capacity (p<0.01) and peak expiratory flow (p=0.002), and maximal inspiratory (p=0.005) and expiratory pressure (p<0.01) improved. Furthermore, there was a significant increase in all the domains of the PAQLQ. The children who exercised had more asthma-free days than the controls (p=0.012) and less sensation of dyspnea at the end of the study (p<0.01). In conclusion, six weeks of aerobic exercise no changes in plasma cytokine patterns in asthmatic children and adolescents; however, an improvement was found in functional capacity, maximal respiratory pressure, quality of life and asthma-related symptoms.Respiratory Medicine 08/2014; 108(10). DOI:10.1016/j.rmed.2014.07.009 · 2.92 Impact Factor
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ABSTRACT: Background: Research indicates that physical exercise has a great impact on pulmonary rehabilitation in asthmatic patients, and improvement of lung function can play a great role in these patients' health. The purpose of this study is to evaluate the effects of physical exercises on lung function and clinical manifestations, signs, and symptoms of asthmatic patients. Materials and Methods: This quasi-experimental study, which followed a pretest-posttest design, was conducted on a group of 24 adult asthmatic patients referring to Bou Ali Hospital of Ardebil that participated in a physical exercise program in 2007. Data were collected using an asthma clinical manifestations questionnaire and Spirometery test. Results: Doing physical exercise was effective in the improvement of lung function of asthmatic patients and decreased such asthmatic signs as wheezing, shortness of breath, chest tightness, and coughing. Conclusion: Physical exercise has a great role in the improvement of clinical manifestations of asmathic patients.