Sex efficiency through exercises : special physical culture for women / by Th. H. van de Velde ; [photos, by E. Steinemann].

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PAGE Medical Inspection Necessary in Case of Morbid Symptoms . 53 The Effect of Pregnancy on the Pelvic Articulations . . 53 Need for Care of the Immature Pelvis ..... 54 Prevalence of Slim Pelves among Athletes and Sportswomen . 55 Caution against Violent Exercise for Girls and Women . . 55 And Equally against Excessive Artificial Slackness ... 56 Relative Contraindications for Beginners . . . .56 Practical Hints and Remarks ...... 56 THE UTILITY OF THE CAPACITIES ACQUIRED BY PELVIC EXERCISES Chapter VIII .......... 57 UTILITY IN COITION. Action of the Pelvic Floor ...... .57-65 Gripping Action of Constrictor Cunni and Levator Vaginal Muscles .......... 57 Increase of Stimulation . . . . . . .57 Special Significance for Wide and Slack Vaginae . . . 58 Delay Obviated in Subconsciously Desired Pregnancy . . 58 A Woman with Well-trained Pelvic Floor has Nothing to Fear 59 Well-mastered Pelvic Muscles Act Automatically ... 59 No Loss of Spontaneous Sensation and Conduct . 59 Variety and Subtlety of Stimuli are More Important than Intensity ......... 59 Interplay of Constrictor Cunni Muscle, of the Outer Parts and the Deeper Strata of the Levator Vaginae .... 60 Elucidation by Means of Plates I, II and IV . . . .60 Prolonged Muscular Action Compensates for Occasional Mascu- line Inadequacy ........ 60 Mutual Harmony in the Climax and Epilogue . . .61 Possible Favourable Effect in Certain Cases of Sterility . . 61 Subtle Effects of Certain Superficial Portions of Pelvic Floor . 62 Active Dilation of the Vaginal Orifice ..... 63 Its Practical Value in Alleviating : (a) First Intercourse ....... 63 (b) Difficulties in later Years . . . . .63 Slight Motion of the Clitoris towards the Vaginal Orifice . . 64 Importance and Value of this Potentiality .... 64 Action of the Pelvic Zone ...... .65-72 Increase of Pelvic Inclination (Dipping of the Anterior Pelvic Rim) 65 Explanation of its Effects ....... 65 Clitoridal and Vaginal Sensation ...... 65 Promotion of Clitoridal Stimulation During Intercourse . . 66 The Significance of Increased or Diminished Pelvic Inclination in the Various Positions and Attitudes in Coitus (Plates V, VI and VII) 66-70 Application of Pelvic Inclination : (a) To Enhanced Satisfaction in Coitus .... 66-70 (b) To the Promotion or Prevention of Pregnancy . . 66-70