| Target-flow inspiratory muscle training: breathing patterns and metabolic costs. | |
| | |
MedLine Citation:
|
PMID: 1783476 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
In target-flow inspiratory muscle training (TF-IMT), the generated inspiratory mouth pressure and the duration of the inspiration and expiration are standardized to given an adequate training stimulus to the inspiratory muscles. The acute effects of TF-IMT on the efficiency of breathing were studied in a group of 12 COPD patients with a ventilatory limitation of their exercise capacity (mean age 58, mean FEV1 46.2% of predicted) and in 15 normal subjects (mean age 30). Also, the effect of a 10 week period of TF-IMT on the maximal inspiratory mouth pressure (PImax) in the COPD patients was measured. After an unloaded baseline period, the subjects started to inspire through a target-flow device during 15 min, followed by a recovery phase of 5 min. During TF-IMT minute ventilation (VE) decreased only in the COPD group. The ventilatory equivalent for O2 (VE/VO2) and the dead space to tidal volume ratio (VD/VT) decreased in both groups. During recovery, VE, VE/VO2 and VD/VT remained below baseline values in the COPD group, but not in the control group. PCO2 and lactate concentrations did not change during TF-IMT. After the 10 week training period, PImax [means) (SD] increased from 5.7(2.2) to 8.2(2.7) kPa (p less than 0.05). The results indicate that with standardized TF-IMT, the inspiratory muscles can be trained effectively in COPD patients with a ventilatory limitation. The persistence of the decrease in VE, VE/VO2 and VD/VT after a training session may be an additional beneficial effect of TF-IMT. |
| | |
Authors:
|
P N Dekhuijzen; M T Hopman; R A Binkhorst; H T Folgering |
Related Documents
:
|
17497586 - Ventilatory and lactic thresholds in subjects with sickle cell trait. 12808226 - Does the regional oxygen uptake measured by near infrared spectroscopy reflect the phas... 16770346 - Breathing strategy in master athletes and untrained elderly subjects according to the i... 16672856 - A simplified strategy for the estimation of the exercise ventilatory thresholds. 22294336 - Hypertension prevention beliefs of hispanics. 16532776 - A robust method for heart sounds localization using lung sounds entropy. |
Publication Detail:
|
Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
|
Title: International journal of rehabilitation research. Internationale Zeitschrift für Rehabilitationsforschung. Revue internationale de recherches de réadaptation Volume: 14 ISSN: 0342-5282 ISO Abbreviation: Int J Rehabil Res Publication Date: 1991 |
Date Detail:
|
Created Date: 1992-03-13 Completed Date: 1992-03-13 Revised Date: 2007-11-15 |
Medline Journal Info:
|
Nlm Unique ID: 7805421 Medline TA: Int J Rehabil Res Country: ENGLAND |
Other Details:
|
Languages: eng Pagination: 293-301 Citation Subset: IM |
Affiliation:
|
University of Nijmegen, The Netherlands. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adult Blood Gas Analysis Breathing Exercises* Energy Metabolism* Evaluation Studies as Topic Female Humans Inspiratory Capacity* Lactates / blood Lactic Acid Lung Diseases, Obstructive / metabolism, physiopathology, therapy* Lung Volume Measurements Male Middle Aged Respiratory Function Tests Respiratory Muscles* / metabolism |
| Chemical | |
Reg. No./Substance:
|
0/Lactates; 50-21-5/Lactic Acid |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Changes in leukocyte recirculation, NK cell activity, and HLA-DR expression in peripheral blood mono...
Next Document: Difficult couplings in stepwise solid phase peptide synthesis: predictable or just a guess?