Abstract
The aim of this study was to evaluate the effects of low intensity, home inspiratory
muscle training on respiratory muscle endurance in children with Duchenne muscular
dystrophy, using a double-blind protocol. The originality aspect of this study is
the use of a reproducible method of endurance and of the same method for evaluation
and training. We studied eight trained children (mean age 14.7±4.5 years) and eight
control children (mean age, 12.6±1.8 years). For 6 weeks, children breathed twice
a day for 10 min through a valve with either 30% (training group) or less than 5% (control group)
of their maximum inspiratory pressure (Pimax). The results showed (1) a 46% improvement in the time limit after training in the
training group and no change in the control group and (2) a significant correlation
between the total time of respiratory muscle training and the percentage of endurance
improvement in the training group. We conclude that specific training improves respiratory
muscle endurance in Duchenne muscular dystrophy and the effectiveness of training
appears to be dependent on the quantity of training.
Keywords
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Article info
Publication history
Accepted:
January 17,
2002
Received in revised form:
November 6,
2001
Received:
July 20,
2001
Identification
Copyright
© 2002 Elsevier Science B.V. Published by Elsevier Inc. All rights reserved.
