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Related Experiment Videos

Electromyographic analysis of relaxed postures

R Poppen, J P Maurer

    Biofeedback and Self-Regulation
    |December 1, 1982
    PubMed
    Summary

    This study found that relaxed postures significantly lower electromyographic (EMG) levels, validating the Behavioral Relaxation Scale as a measure of muscle tension and supporting posture training for relaxation.

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    Area of Science:

    • Behavioral science
    • Physiology

    Background:

    • Understanding objective measures of relaxation is crucial.
    • The Behavioral Relaxation Scale (BRS) is a tool to assess relaxation states.

    Purpose of the Study:

    • To validate the Behavioral Relaxation Scale (BRS) as a measure of relaxation.
    • To investigate the relationship between body posture and muscle activity.

    Main Methods:

    • Six male volunteers adopted relaxed and unrelaxed postures across seven body areas.
    • Electromyographic (EMG) levels were measured for associated muscle groups in both posture types.

    Main Results:

    • Relaxed postures consistently resulted in significantly lower EMG levels compared to unrelaxed postures.
    • This demonstrates a clear physiological difference between relaxed and unrelaxed states.

    Conclusions:

    • The Behavioral Relaxation Scale (BRS) is a valid behavioral indicator of physiological relaxation.
    • Training individuals to adopt relaxed postures is an effective method for achieving relaxation.

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