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Restrictive ventilatory dysfunction in stroke: its relation to locomotor function.

A R Fugl-Meyer, H Linderholm, A F Wilson

    Scandinavian Journal of Rehabilitation Medicine. Supplement
    |January 1, 1983
    PubMed
    Summary
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    Stroke survivors often experience restricted ventilatory function, especially affecting expiratory force. This study found significant changes in lung function related to motor impairment severity and time post-stroke.

    Area of Science:

    • Neurology
    • Pulmonology
    • Rehabilitation Medicine

    Background:

    • Stroke frequently leads to motor deficits, including hemiplegia and hemiparesis.
    • Ventilatory dysfunction can be a significant complication following stroke, impacting patient recovery and quality of life.

    Purpose of the Study:

    • To investigate the impact of stroke-induced hemiplegia/hemiparesis on ventilatory function.
    • To correlate respiratory parameters with the degree of motor impairment and time elapsed since stroke.

    Main Methods:

    • Evaluated static and dynamic lung volumes, maximum respiratory pressures, lung compliance, and resistance in 54 post-stroke subjects.
    • Assessed the relationship between ventilatory function measures and motor impairment severity.
    • Analyzed changes in respiratory function over time post-stroke.

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    Main Results:

    • Overall ventilatory function was restricted, particularly parameters reliant on expiratory force, with greater impairment in severe hemiplegia.
    • Intrinsic lung function (dynamic lung volumes, compliance, resistance) remained unaffected.
    • Inspiratory capacity decreased six months post-stroke, suggesting potential long-term respiratory changes.

    Conclusions:

    • Expiratory muscle dys-coordination and weakness are primary causes of expiratory dysfunction post-stroke.
    • Inspiratory restriction may stem from muscular dysfunction and rib cage contracture over time.
    • Ventilatory impairments post-stroke are linked to motor deficits and evolve over time, necessitating targeted rehabilitation strategies.