vagina. Particularly if that portion of the pelvic floor surrounding the vagina, the so-called Kegel muscle (pubococcygeus) (fig. 24) is weak and slack; in other words the vagina serves as a thin ring rather than a wide, firm cuff (Kahn-Ladas, Whipple & Perry, 1982; p. 93 f.). This is a case of the Lost Penis syndrome .
This syndrome can cause such a lack of stimulation that the penis is unable to maintain an erection during intercourse. For the woman, on the other hand, this can lead to anor-
Fig. 23
gasmia, as the G spot, for one, does not have sufficient contact with the penis. This lends credence to the often de- monstrated correlation between orgasm and
Lost Penis syndrome
Kegel muscle strength.
The Love Muscle
Based on 3,000 diagnoses, Arnold Kegel discovered back in 1952 that sexually stimulating sensations within the vagina are closely linked to the pubococcygeus or PC muscle and thus can be positively impacted by special training (Kegel, 1952a; p. 522).
Fig. 24
Pubic bone
Urethra Vagina
Rectum Musculus pubococcygeus (MPC)
Os coccygis
lowest part of
the spine
Pubococcygeus muscle (PC)
In subsequent decades several studies confirmed these find- ings (e.g. Rudinger Edwin A., 1976; Meier Evelyn, 1977; Graber Benjamin & Kline-Graber Georgia, 1979; Perry John D. & Whipple Beverly, 1981; Kline Georgia, 1982; Lavoisier Pierre, 1982; Huey Candance J. et al., 1982; Eicher Wolf, 1991; Graziottin Alessandra, 2000; Beji Nezihe K. et al., 2003; etc.). The husband and wife team of Graber and Graber analyzed data from 281 women, who were divided into three groups. The first group did not generally experience orgasm, the second experienced orgasm through clitoral stimulation, and the third could also experience orgasm during intercourse. The last group was distinguished by the fact that it exhibited by far the strongest vaginal muscle structure. The first group, which was generally anorgasmic, also had the weakest values. The pressure values of the three groups were 17:12:7. The pressure was measured by means of a perineometer, which inflates a balloon in the vaginal cavity and registers the pressure produced by the cavity walls just like a manometer.
Frequency of orgasm (%)
100
Eicher registered vaginal pressure with 130 of the female subjects. Fig. 25 reveals that the group of women producing pressure higher than 10 mm Hg also reached orgasm three times more frequently than women who did not generate such high vaginal pressure.
Increase in peri-
vaginal pressure
80
60
40
20
0
<10 mm Hg
>10 mm Hg
Orgasm always or often
Orgasm seldom or never
Fig. 25
An analysis by Perry (1995) found that those few studies which failed to determine such a direct correlation (Roughan, Penelope A. & Kunst, Lisbeth, 1981; Chambless, Dianne L. et al., 1982, etc.), proved to be methodically faulty or even
downright odd. To cite one
Intensity and frequency of orgasm
such example, Dianne Chambless (1982) came to the conclu- sion that the subjects’ own estimation of the “intensity of the orgasm” did not relate to the strength of the PC muscle, even though in a different part of the study she reported a close correlation with the pleasure of orgasm. The central muscle group, which is located between the pubic bone and tail bone, plays a key role in this context. The urinary tract and the vagina pass through the muscle cleft, to which they are firmly connected. This area is supplied by the perineal nerve (a branch of the pudendal nerve), which consequently accords the PC muscle not only motor, but also sensory functions (cf. Eicher, 1984).
The muscles in the upper layer of the pelvic floor do not only have significant influence on vaginal sensation, they also have an effect on the erectibility of the penis and the clitoris (De Lancey, 1994, Van Kampen, 2000). The con- tractions of the pelvic floor are attributed as having a deci- sive triggering function in orgasm. According to Sherfey (1974) orgasm is the reflex triggered off in the pelvic mus- cles
This syndrome can cause such a lack of stimulation that the penis is unable to maintain an erection during intercourse. For the woman, on the other hand, this can lead to anor-
Fig. 23
gasmia, as the G spot, for one, does not have sufficient contact with the penis. This lends credence to the often de- monstrated correlation between orgasm and
Lost Penis syndrome
Kegel muscle strength.
The Love Muscle
Based on 3,000 diagnoses, Arnold Kegel discovered back in 1952 that sexually stimulating sensations within the vagina are closely linked to the pubococcygeus or PC muscle and thus can be positively impacted by special training (Kegel, 1952a; p. 522).
Fig. 24
Pubic bone
Urethra Vagina
Rectum Musculus pubococcygeus (MPC)
Os coccygis
lowest part of
the spine
Pubococcygeus muscle (PC)
In subsequent decades several studies confirmed these find- ings (e.g. Rudinger Edwin A., 1976; Meier Evelyn, 1977; Graber Benjamin & Kline-Graber Georgia, 1979; Perry John D. & Whipple Beverly, 1981; Kline Georgia, 1982; Lavoisier Pierre, 1982; Huey Candance J. et al., 1982; Eicher Wolf, 1991; Graziottin Alessandra, 2000; Beji Nezihe K. et al., 2003; etc.). The husband and wife team of Graber and Graber analyzed data from 281 women, who were divided into three groups. The first group did not generally experience orgasm, the second experienced orgasm through clitoral stimulation, and the third could also experience orgasm during intercourse. The last group was distinguished by the fact that it exhibited by far the strongest vaginal muscle structure. The first group, which was generally anorgasmic, also had the weakest values. The pressure values of the three groups were 17:12:7. The pressure was measured by means of a perineometer, which inflates a balloon in the vaginal cavity and registers the pressure produced by the cavity walls just like a manometer.
Frequency of orgasm (%)
100
Eicher registered vaginal pressure with 130 of the female subjects. Fig. 25 reveals that the group of women producing pressure higher than 10 mm Hg also reached orgasm three times more frequently than women who did not generate such high vaginal pressure.
Increase in peri-
vaginal pressure
80
60
40
20
0
<10 mm Hg
>10 mm Hg
Orgasm always or often
Orgasm seldom or never
Fig. 25
An analysis by Perry (1995) found that those few studies which failed to determine such a direct correlation (Roughan, Penelope A. & Kunst, Lisbeth, 1981; Chambless, Dianne L. et al., 1982, etc.), proved to be methodically faulty or even
downright odd. To cite one
Intensity and frequency of orgasm
such example, Dianne Chambless (1982) came to the conclu- sion that the subjects’ own estimation of the “intensity of the orgasm” did not relate to the strength of the PC muscle, even though in a different part of the study she reported a close correlation with the pleasure of orgasm. The central muscle group, which is located between the pubic bone and tail bone, plays a key role in this context. The urinary tract and the vagina pass through the muscle cleft, to which they are firmly connected. This area is supplied by the perineal nerve (a branch of the pudendal nerve), which consequently accords the PC muscle not only motor, but also sensory functions (cf. Eicher, 1984).
The muscles in the upper layer of the pelvic floor do not only have significant influence on vaginal sensation, they also have an effect on the erectibility of the penis and the clitoris (De Lancey, 1994, Van Kampen, 2000). The con- tractions of the pelvic floor are attributed as having a deci- sive triggering function in orgasm. According to Sherfey (1974) orgasm is the reflex triggered off in the pelvic mus- cles
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