Document Detail

Inspiratory muscle training and respiratory sensation during treadmill exercise.
MedLine Citation:
PMID:  8325069     Owner:  NLM     Status:  MEDLINE    
We studied whether inspiratory muscle training (IMT) changed respiratory sensation during exercise in 12 healthy women; IMT was performed twice daily, for 15 minutes, using a pressure threshold device and continued for 4 weeks. The inspiratory threshold was set to 30 percent of each individual's maximal inspiratory pressure (Pimax). Breathing effort was evaluated during a progressive exercise test using Borg scale. After IMT, both Pimax and maximal transdiaphragmatic pressure increased by 30 percent in the training group (p < 0.05) but did not change in the control group. Prior to IMT, the Borg score increased in proportion to exercise grade. The difference in the sensory score-exercise stage curves before and after IMT in the training group was not significant. No significant difference was noted in the relationship of the Borg score to minute ventilation before and after 4 weeks in either group. We concluded that IMT may not affect respiratory sensation during exercise in normal subjects, although IMT increases diaphragmatic strength.
S Suzuki; Y Yoshiike; M Suzuki; T Akahori; A Hasegawa; T Okubo
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Chest     Volume:  104     ISSN:  0012-3692     ISO Abbreviation:  Chest     Publication Date:  1993 Jul 
Date Detail:
Created Date:  1993-08-10     Completed Date:  1993-08-10     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0231335     Medline TA:  Chest     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  197-202     Citation Subset:  AIM; IM; S    
1st Department of Internal Medicine, Yokohama City University School of Medicine, Kanagawa, Japan.
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MeSH Terms
Diaphragm / physiology*
Exercise Test
Functional Residual Capacity / physiology
Inhalation / physiology*
Maximal Voluntary Ventilation / physiology
Muscle Contraction / physiology
Physical Education and Training
Physical Exertion / physiology*
Pulmonary Ventilation / physiology
Residual Volume / physiology
Respiration / physiology*
Sensation / physiology*
Total Lung Capacity / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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