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Pulmonary changes induced by frontal EMG training.

A Harver, H Kotses

    Biological Psychology
    |February 1, 1984
    PubMed
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    Facial muscle tension directly impacts pulmonary function, specifically peak expiratory flow rate (PEFR). Limb muscle tension, however, does not affect PEFR, supporting a specific reflexive link.

    Area of Science:

    • Physiology
    • Neuroscience
    • Respiratory Medicine

    Background:

    • Previous studies indicated a limited, specific connection between facial muscle tension and pulmonary events.
    • The facial muscle-pulmonary relationship's specificity requires further investigation.

    Purpose of the Study:

    • To provide further evidence for the specificity of the facial muscle-pulmonary relationship.
    • To examine the effects of facial and limb muscle tension changes on respiratory and heart rate.

    Main Methods:

    • Adult males underwent feedback training for increased and decreased muscle tension in facial and limb muscles.
    • Changes in peak expiratory flow rate (PEFR), respiratory rate (RR), and heart rate (HR) were monitored.

    Main Results:

    Related Experiment Videos

    • Increased facial muscle tension led to decreased PEFR.
    • Increased limb muscle tension did not affect PEFR.
    • No significant changes in PEFR, RR, or HR were observed with decreased facial muscle tension or related to limb muscle tension.
    • Facial electromyography (EMG) changes were not correlated with RR or HR.

    Conclusions:

    • The findings demonstrate a specific relationship between facial muscle tension and PEFR.
    • The results support the hypothesis of a reflexive link between facial muscle tension and PEFR.