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The female orgasm: pelvic contractions

J G Bohlen, J P Held, M O Sanderson

    Archives of Sexual Behavior
    |October 1, 1982
    PubMed
    Summary
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    Female orgasm involves synchronized pelvic muscle contractions, measured via anal and vaginal probes. Different orgasmic patterns, including types I, II, and IV, were identified, impacting contraction characteristics.

    Area of Science:

    • Human Sexuality
    • Physiology
    • Neuroscience

    Background:

    • Previous research has identified distinct patterns of orgasmic contractions in men.
    • Understanding female orgasmic physiology is crucial for sexual health and research.

    Purpose of the Study:

    • To investigate and characterize pelvic muscle contraction patterns during female self-induced orgasm.
    • To identify and classify different types of female orgasmic responses based on contraction patterns.

    Main Methods:

    • Eleven nulliparous women self-stimulated to orgasm.
    • Pelvic contraction pressure was measured simultaneously using anal and vaginal probes.
    • Contraction waveforms, intervals, amplitudes, and areas were analyzed.

    Main Results:

    Related Experiment Videos

    • Nine women exhibited synchronized regular pelvic contractions during orgasm, with anal pressure showing higher baseline and amplitude than vaginal pressure.
    • Three distinct orgasmic patterns were observed: Type I (regular contractions only), Type II (regular followed by irregular contractions), and Type IV (no regular contractions).
    • Significant differences in orgasm duration and contraction number were noted between the identified types.

    Conclusions:

    • Female orgasm is characterized by synchronized pelvic muscular contractions, with measurable differences in pressure, amplitude, and duration.
    • The identification of distinct orgasmic types (I, II, IV) in women, analogous to those in men, is important for comparative physiological studies.
    • These findings contribute to a deeper understanding of female sexual response and provide a basis for future research on orgasmic function.