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1982 Edition
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Vasocongestion and EMG Activity
In the recording above, vasocongestive (top) and electromyographic (bottom) activity are shown as detected by a combination VPG/EMG vaginal sensor. "Higher" readings are towards center of the chart. Vaginal blood flow increases during masturbation until it reachs a peak during reported orgasm and both blood flow and muscle tension drop off. Note that short EMG peaks (as over the "M" of Muscle) result in a momentary measured or apparent decrease in bloodflow. This subject had very strong pelvic muscles. Note a peak (momentary) reading of 200 microvolts (RMS) that was manually recorded. Ten-second averages shown are 26.9, 15.2, x, 59, 34.5, 79.8, and 69.2. (April, 1979) Vaginal Bloodflow and Muscle
Tension
The data above proves the well-known clinical observation that Kegel Exercises directly lead to increased sexual arousal, as measured by the "redness" of the vaginal wall. In this recording, vasocongestive (blood flow) activity (top) and
electromyographic activity (bottom) are recorded during a series of "Kegel
Exercise" contractions using a combination VPG/EMG sensor. Subject was cued by
signal lights (lower margin; up = "contract"). Note that the blood flow
increases as a result of pelvic muscle contractions. Other research (e.g., Renee
Masse) has shown that such exercises lead to increased lubrication, which is
known to be
a consequence of vasocongestion. (April, 1979). Note that vasocongestion does not
always occur; the subject has to be "in the mood" to become aroused.
Return to home page. Copyright 1999 by John D. Perry
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Appendix A
Other Good
will be listed here. (Send your suggestions to DrGSpot@DrGSpot.net)
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