Comparison of Inspiratory Muscle Strength Training Effects Between Older Subjects With and Without Chronic Obstructive Pulmonary Disease
Inspiratory muscle strength training (IMST) has been traditionally recommended for patients with chronic obstructive pulmonary disease (COPD) to improve respiratory strength. Respiratory strength is reduced as age increases. However, few studies have focused on the effects of IMST on older adults wi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2011-08-01
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| Series: | Journal of the Formosan Medical Association |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0929664611600788 |
| _version_ | 1818064151835049984 |
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| author | Chien-Hui Huang Gee-Gwo Yang Ying-Tai Wu Chih-Wei Lee |
| author_facet | Chien-Hui Huang Gee-Gwo Yang Ying-Tai Wu Chih-Wei Lee |
| author_sort | Chien-Hui Huang |
| collection | DOAJ |
| description | Inspiratory muscle strength training (IMST) has been traditionally recommended for patients with chronic obstructive pulmonary disease (COPD) to improve respiratory strength. Respiratory strength is reduced as age increases. However, few studies have focused on the effects of IMST on older adults without COPD.
Methods: Subjects were divided into training non-COPD (TNC, n = 24) and training COPD (TC, n = 12) according to their forced expiratory volume in 1 second (% predicted). Both groups received 6 weeks of IMST, with training at 75–80% of maximal inspiratory pressure using pressure threshold trainers. A second group of COPD subjects served as controls (CC, n = 24), which received no training. Dyspnea was measured using the basic dyspnea index. Health-related quality of life was measured using the SF-36. The SF-36 subcategories, physical component summary and mental component summary were compared. A 6-minute walk test was performed to determine functional status. Two-way repeated measures analysis of variance was used to compare group effects and training effects of IMST.
Results: Maximal inspiratory pressure was increased in both training groups (TNC: 59.1 cmH2O pre-IMST to 82.5 cmH2O post-IMST; TC: 53.2 to 72.6), but not in the CC group. Therefore, the basic dyspnea index was improved in both training groups (TNC: 9.6 to 10.8; TC: 6.2 to 7.3). Functional status was improved in the TNC group (TNC: 392.1 m to 436.3 m), but not in the TC or CC groups. Quality of life was improved in the physical component summary in both training groups.
Conclusion: IMST increases maximal inspiratory pressure, relieves dyspnea and improves health-related quality of life in older adults. IMST especially improves functional status in subjects without COPD. IMST benefits subjects with COPD and those without COPD. Therefore, IMST as a treatment tool is not confined to patients with COPD. |
| first_indexed | 2024-12-10T14:31:27Z |
| format | Article |
| id | doaj.art-628033b791b449778a359a928496b9b1 |
| institution | Directory Open Access Journal |
| issn | 0929-6646 |
| language | English |
| last_indexed | 2024-12-10T14:31:27Z |
| publishDate | 2011-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of the Formosan Medical Association |
| spelling | doaj.art-628033b791b449778a359a928496b9b12022-12-22T01:44:55ZengElsevierJournal of the Formosan Medical Association0929-66462011-08-01110851852610.1016/S0929-6646(11)60078-8Comparison of Inspiratory Muscle Strength Training Effects Between Older Subjects With and Without Chronic Obstructive Pulmonary DiseaseChien-Hui Huang0Gee-Gwo Yang1Ying-Tai Wu2Chih-Wei Lee3Department of Physical Therapy, Tzu Chi University, Taipei, TaiwanDepartment of Pulmonary Medicine, Tzu Chi Medical Center, Taiwan University, Taipei, TaiwanGraduate institute of Physical Therapy, Taiwan University, Taipei, TaiwanDepartment of Physical Therapy, Tzu Chi University, Taipei, TaiwanInspiratory muscle strength training (IMST) has been traditionally recommended for patients with chronic obstructive pulmonary disease (COPD) to improve respiratory strength. Respiratory strength is reduced as age increases. However, few studies have focused on the effects of IMST on older adults without COPD. Methods: Subjects were divided into training non-COPD (TNC, n = 24) and training COPD (TC, n = 12) according to their forced expiratory volume in 1 second (% predicted). Both groups received 6 weeks of IMST, with training at 75–80% of maximal inspiratory pressure using pressure threshold trainers. A second group of COPD subjects served as controls (CC, n = 24), which received no training. Dyspnea was measured using the basic dyspnea index. Health-related quality of life was measured using the SF-36. The SF-36 subcategories, physical component summary and mental component summary were compared. A 6-minute walk test was performed to determine functional status. Two-way repeated measures analysis of variance was used to compare group effects and training effects of IMST. Results: Maximal inspiratory pressure was increased in both training groups (TNC: 59.1 cmH2O pre-IMST to 82.5 cmH2O post-IMST; TC: 53.2 to 72.6), but not in the CC group. Therefore, the basic dyspnea index was improved in both training groups (TNC: 9.6 to 10.8; TC: 6.2 to 7.3). Functional status was improved in the TNC group (TNC: 392.1 m to 436.3 m), but not in the TC or CC groups. Quality of life was improved in the physical component summary in both training groups. Conclusion: IMST increases maximal inspiratory pressure, relieves dyspnea and improves health-related quality of life in older adults. IMST especially improves functional status in subjects without COPD. IMST benefits subjects with COPD and those without COPD. Therefore, IMST as a treatment tool is not confined to patients with COPD.http://www.sciencedirect.com/science/article/pii/S0929664611600788dyspneamaximal inspiratory pressurequality of lifeSF-366-minute walk test |
| spellingShingle | Chien-Hui Huang Gee-Gwo Yang Ying-Tai Wu Chih-Wei Lee Comparison of Inspiratory Muscle Strength Training Effects Between Older Subjects With and Without Chronic Obstructive Pulmonary Disease Journal of the Formosan Medical Association dyspnea maximal inspiratory pressure quality of life SF-36 6-minute walk test |
| title | Comparison of Inspiratory Muscle Strength Training Effects Between Older Subjects With and Without Chronic Obstructive Pulmonary Disease |
| title_full | Comparison of Inspiratory Muscle Strength Training Effects Between Older Subjects With and Without Chronic Obstructive Pulmonary Disease |
| title_fullStr | Comparison of Inspiratory Muscle Strength Training Effects Between Older Subjects With and Without Chronic Obstructive Pulmonary Disease |
| title_full_unstemmed | Comparison of Inspiratory Muscle Strength Training Effects Between Older Subjects With and Without Chronic Obstructive Pulmonary Disease |
| title_short | Comparison of Inspiratory Muscle Strength Training Effects Between Older Subjects With and Without Chronic Obstructive Pulmonary Disease |
| title_sort | comparison of inspiratory muscle strength training effects between older subjects with and without chronic obstructive pulmonary disease |
| topic | dyspnea maximal inspiratory pressure quality of life SF-36 6-minute walk test |
| url | http://www.sciencedirect.com/science/article/pii/S0929664611600788 |
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