Benefits of short inspiratory muscle training on exercise capacity, dyspnea, and inspiratory fraction in COPD patients
Barakat Shahin1, Michele Germain2, Alzahouri Kazem3, Guy Annat41Department of Physiology, University of Claude Bernard Lyon I, Lyon, France; 2Chef of the Service of EFR, Hospital of the Croix-Rousse at Lyon, France; 3Department of Medical Informatics, Hospital of St. Julien, Nancy, France; 4Departme...
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| Format: | Article |
| Language: | English |
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Dove Medical Press
2008-10-01
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| Series: | International Journal of COPD |
| Online Access: | http://www.dovepress.com/benefits-of-short-inspiratory-muscle-training-on-exercise-capacity-dys-a2455 |
| _version_ | 1819199485666918400 |
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| author | Barakat Shahin Michele Germain Alzahouri Kazem Guy Annat |
| author_facet | Barakat Shahin Michele Germain Alzahouri Kazem Guy Annat |
| author_sort | Barakat Shahin |
| collection | DOAJ |
| description | Barakat Shahin1, Michele Germain2, Alzahouri Kazem3, Guy Annat41Department of Physiology, University of Claude Bernard Lyon I, Lyon, France; 2Chef of the Service of EFR, Hospital of the Croix-Rousse at Lyon, France; 3Department of Medical Informatics, Hospital of St. Julien, Nancy, France; 4Department of Physiology, UFR Médecine Lyon Grange-Blanche Université Claude Bernard Lyon I, INSERM ESPRI ERI 22, Lyon, FranceAbstract: Static lung hyperinflation has important clinical consequences in patients with chronic obstructive pulmonary disease (COPD). Given that most of these patients have respiratory and peripheral muscle weakness, dyspnea and functional exercise capacity may improve as a result of inspiratory muscle training (IMT). The present study is designed to investigate the benefits of a short outpatient program of IMT on inspiratory muscle performance, exercise capacity, perception of dyspnea, and the inspiratory fraction (IF). Thirty patients (24 males, 6 females) with significant COPD (forced expiratory volume in one second [FEV1] = 46.21% ± 6.7% predicted, FEV1 = 33.6% ± 8.04% predicted) were recruited for this study and had 3 months of IMT (30 minutes/day for 6 days/week) in an outpatient clinic. Following IMT, there was a statistically significant increase in inspiratory muscle performance (an increase of the maximal inspiratory pressure from 59% ± 19.1% to 79% ± 21.85% predicted; p = 0.0342), a decrease in dyspnea (from 5.8 ± 0.78 to 1.9 ± 0.57; p = 0.0001), an increase in the distance walked during the 6 minute walk test, from 245 ± 52.37 m to 302 ± 41.30 m, and finally an increase in the IF (the new prognostic factor in COPD) from 27.6 ± 9.7% to 31.4% ± 9.8%. The present study concludes that in patients with significant COPD, IMT results in improvement in performance, exercise capacity, sensation of dyspnea, and moreover an improvement in the IF prognostic factor.Keywords: inspiratory muscle training, dyspnea, inspiratory fraction |
| first_indexed | 2024-12-23T03:17:05Z |
| format | Article |
| id | doaj.art-483d79e624b749bf8f80f4b928fe0aaa |
| institution | Directory Open Access Journal |
| issn | 1176-9106 1178-2005 |
| language | English |
| last_indexed | 2024-12-23T03:17:05Z |
| publishDate | 2008-10-01 |
| publisher | Dove Medical Press |
| record_format | Article |
| series | International Journal of COPD |
| spelling | doaj.art-483d79e624b749bf8f80f4b928fe0aaa2022-12-21T18:02:04ZengDove Medical PressInternational Journal of COPD1176-91061178-20052008-10-012008Issue 3423427Benefits of short inspiratory muscle training on exercise capacity, dyspnea, and inspiratory fraction in COPD patientsBarakat ShahinMichele GermainAlzahouri KazemGuy AnnatBarakat Shahin1, Michele Germain2, Alzahouri Kazem3, Guy Annat41Department of Physiology, University of Claude Bernard Lyon I, Lyon, France; 2Chef of the Service of EFR, Hospital of the Croix-Rousse at Lyon, France; 3Department of Medical Informatics, Hospital of St. Julien, Nancy, France; 4Department of Physiology, UFR Médecine Lyon Grange-Blanche Université Claude Bernard Lyon I, INSERM ESPRI ERI 22, Lyon, FranceAbstract: Static lung hyperinflation has important clinical consequences in patients with chronic obstructive pulmonary disease (COPD). Given that most of these patients have respiratory and peripheral muscle weakness, dyspnea and functional exercise capacity may improve as a result of inspiratory muscle training (IMT). The present study is designed to investigate the benefits of a short outpatient program of IMT on inspiratory muscle performance, exercise capacity, perception of dyspnea, and the inspiratory fraction (IF). Thirty patients (24 males, 6 females) with significant COPD (forced expiratory volume in one second [FEV1] = 46.21% ± 6.7% predicted, FEV1 = 33.6% ± 8.04% predicted) were recruited for this study and had 3 months of IMT (30 minutes/day for 6 days/week) in an outpatient clinic. Following IMT, there was a statistically significant increase in inspiratory muscle performance (an increase of the maximal inspiratory pressure from 59% ± 19.1% to 79% ± 21.85% predicted; p = 0.0342), a decrease in dyspnea (from 5.8 ± 0.78 to 1.9 ± 0.57; p = 0.0001), an increase in the distance walked during the 6 minute walk test, from 245 ± 52.37 m to 302 ± 41.30 m, and finally an increase in the IF (the new prognostic factor in COPD) from 27.6 ± 9.7% to 31.4% ± 9.8%. The present study concludes that in patients with significant COPD, IMT results in improvement in performance, exercise capacity, sensation of dyspnea, and moreover an improvement in the IF prognostic factor.Keywords: inspiratory muscle training, dyspnea, inspiratory fractionhttp://www.dovepress.com/benefits-of-short-inspiratory-muscle-training-on-exercise-capacity-dys-a2455 |
| spellingShingle | Barakat Shahin Michele Germain Alzahouri Kazem Guy Annat Benefits of short inspiratory muscle training on exercise capacity, dyspnea, and inspiratory fraction in COPD patients International Journal of COPD |
| title | Benefits of short inspiratory muscle training on exercise capacity, dyspnea, and inspiratory fraction in COPD patients |
| title_full | Benefits of short inspiratory muscle training on exercise capacity, dyspnea, and inspiratory fraction in COPD patients |
| title_fullStr | Benefits of short inspiratory muscle training on exercise capacity, dyspnea, and inspiratory fraction in COPD patients |
| title_full_unstemmed | Benefits of short inspiratory muscle training on exercise capacity, dyspnea, and inspiratory fraction in COPD patients |
| title_short | Benefits of short inspiratory muscle training on exercise capacity, dyspnea, and inspiratory fraction in COPD patients |
| title_sort | benefits of short inspiratory muscle training on exercise capacity dyspnea and inspiratory fraction in copd patients |
| url | http://www.dovepress.com/benefits-of-short-inspiratory-muscle-training-on-exercise-capacity-dys-a2455 |
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