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

359/426

(debug: view other mode)

The image contains the following text:

MAJOR PELVIC ROTATION (HORIZON- TAL) (Fourth Phase). The pelvis is as far forward f as possible. FILM^12. SUSPENSION- FLEXION (Ninth Phase). The legs, stretched to full length, are slowly lowered.