Showing 3 results for Lung Function
Nader Shavandi, Abbas Sarami, Mohammad Parastesh, Akbar Ghorbani, Rahmat Alah Hidarpur,
Volume 13, Issue 2 (6-2010)
Abstract
Background: The aim of the present study was to determine the response of lung function indices to aerobic and anaerobic exercises in polluted air. Materials and Methods: In this quasi-experimental study, 20 healthy men were randomly divided into two equal groups experiment and control. The experiment group initially had one session of aerobic exercise and after a three-week break, received one session of anaerobic exercise on ergometer bicycle in polluted air. The control group did the same kind of exercise in healthy clean air. Lung function tests were run before, right after (the first post-test), and 24 hours after the exercises (the second post-test). Results: Aerobic exercise in unhealthy polluted air resulted in the significant reduction of FEV1, FVC, and FEF25-75% indices in the first and second post-tests. Following anaerobic exercises in polluted air, a significant decrease was observed in FVC and FEF25-75% indices in both the first and second post-tests. FEV1 and FEF25-75% indices in the first and second post-tests, and FEV1 and FVC indexes in the second post-tests underwent a remarkably greater reduction following aerobic exercise. Conclusion: While aerobic physical exercise in polluted air caused a reduction in the lung function indices (FEV1, FVC and FEF25-75%) in the first and second post-tests, it seemed that anaerobic exercises in polluted air induced a significantly smaller reduction in FEV1 and FEF25-75% in the first and second post tests, and FEV1/FVC in the second post test.
Farzad Nazem, Mojtaba Izadi, Majid Jaliliu, Behzad Keshvarz,
Volume 15, Issue 9 (2-2013)
Abstract
Background: Epidemiological studies have shown the relationship between incidence of asthma symptoms and environmental factors, such as sedentary lifestyle and metabolic and cardiovascular diseases. However, the role of exercise rehabilitation protocols on lung function in obese adult patients with chronic asthma is a controversial issue. The aim of the present study is to evaluate the impact of aerobic exercise on lung function in obese middle-aged men with chronic asthma. Materials and Methods: This semi-experimental study was conducted on 39 obese middle-aged males with mild and moderate asthma. The experimental group (n=19) with regard to the safe range 15≥ RPE>9 followed the sub-maximal rehabilitation exercise program (50 to 80% HRmax intensity) for 3 months. Then, they underwent one month of detraining. The control group (n=20) did not have any form of aerobic exercise. Spirometric parameters in base, three months of training, and one month of detraining were measured by standard methods. Results: Indicators of lung function, including FVC, FEV1/FVC, PEF, FEF%75, and MVV significantly decreased. The pattern of changes in FEV1, FEV1/FVC, and MVV remained stable even after a month of detraining (p<0.05). However, no significant changes occurred in the dependent variables of the control group (p>0.05). Conclusion: It seems that the incidence of physiological adaptations of aerobic exercise, as a non-pharmacologic clinical factor, after the one-month detraining period affected the spirometric parameters in obese asthmatic patients
Azam Afaghi, Shahrbanoo Oryan, Mohammad Abdollahi, Kobra Rahzani, Aliakbar Malekirad, Hossein Kakooie,
Volume 17, Issue 7 (10-2014)
Abstract
Background: The current paper set out to investigate the level of asbestos fiber and asbestos body in sputum and assayed of haematological factors, liver enzymes and pulmonary function test in asbestos exposed group.
Materials and Methods: An analytical cross-sectional study was conducted with a total number of 100 subjects. The case group included 50 male workers with the age range of 25-60 who had at least worked for five years in the asbestos-cement factory. Control subjects consisted of 50 people who had no history of occupational exposure to asbestos. Lung function tests were measured with a portable calibrated vitalograph-PFT spirometer. liver enzymes were assayed with Pars Azmoon kits. Counts of red blood cells and white blood cells were assayed with a cell counter. We used light polarizan microscope to study the level of asbestos fiber and asbestos body in sputum.
Results: Asbestos fiber observed in sputum sample of workers and type of asbestos fiber is chrysotile. Asbestos bodies were found in only 10% of the workers. Decrease (but not significant) in lung function factors (FVC, FEV1, FVC/FEV1) had been seen in the workers in compare with control group. WBC, Eosinophil, neutrophil, lymphocyte, monocyte and liver enzymes levels were significantly higher (but in normal range) in workers as compared with the control group.
Conclusion: Presence of asbestos fiber and asbestos body in workers sputum samples showed workers exposure to asbestos and reduced level (insignificant) of lung function factors and increased level of leukocyte may be indicated pulmonary inflammation. These results also suggested that occupational exposure to asbestos dust may perturb liver mal function parameters
