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Respiratory muscle training in multiple sclerosis: a pilot study.

R Olgiati, A Girr, L Hügi

    Schweizer Archiv Fur Neurologie Und Psychiatrie (Zurich, Switzerland : 1985)
    |January 1, 1989
    PubMed
    Summary
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    Respiratory muscle training (RMT) improved respiratory strength and ventilation in multiple sclerosis (MS) patients with weakness. This intervention may aid rehabilitation for MS patients experiencing exercise intolerance.

    Area of Science:

    • Neurology
    • Pulmonology
    • Rehabilitation Medicine

    Background:

    • Multiple Sclerosis (MS) can lead to respiratory muscle weakness (RMW), impacting quality of life.
    • RMW contributes to exercise intolerance, impaired coughing, and speech difficulties in MS patients.
    • Vital capacity (VC), maximal static inspiratory (PImax) and expiratory (PEmax) pressures, and maximal voluntary ventilation (MVV) are key respiratory function indicators.

    Purpose of the Study:

    • To evaluate the effects of respiratory muscle training (RMT) on respiratory muscle strength and ventilatory capacity in patients with multiple sclerosis (MS).
    • To determine if RMT can be a beneficial rehabilitation method for selected MS patients experiencing RMW.

    Main Methods:

    • Eight stable MS patients with documented RMW (VC 83%, PImax 64%, PEmax 41%, MVV 62% of predicted) participated.

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  • A 4 ± 1 week RMT program utilizing inspiratory and/or expiratory resistive loads was implemented.
  • Respiratory function parameters including VC, PImax, PEmax, and MVV were assessed before and after the training period.

    • Main Results:

    • Significant improvements were observed in PImax (+31%, p<0.02), PEmax (+31%, p<0.05), and MVV (+21%, p<0.05) following RMT.
    • Vital capacity (VC) showed a non-significant increase of +1%.
    • The RMT program effectively enhanced respiratory muscle strength and ventilatory capacity in the studied MS cohort.

    Conclusions:

    • Respiratory muscle training is effective in improving respiratory muscle strength and ventilatory capacity in MS patients with RMW.
    • RMT presents a potential adjunctive rehabilitation strategy for selected MS patients suffering from exercise intolerance and related respiratory impairments.
    • Further research is warranted to explore the long-term benefits and optimal protocols for RMT in MS management.