This section is from the book "Massage And The Original Swedish Movements", by Kurre W. Ostrom. Also available from Amazon: Massage and the Original Swedish Movements.
See Fig. 17. Page 37. (Crook-Lying.)

Fig. 64. - Sit-Lying.

Fig. 65. - Crook-Half-Lying.
The subdivisions of positions here mentioned have given rise to a difficult terminology, as in many of them no equivalent English word can be found. They are, however, of great importance to everybody who contemplates practising Swedish movements, and as to their practical use we will refer to them in connection with the movements. Only a few examples of their importance will be given here. In the derivative positions of standing, with the arms, we can act upon certain parts or temporarily prevent certain organs or tissues from performing their functions. In the positions demonstrated in Figs. 43, 47, 49, 51, the chest is considerably expanded, which causes deeper inspirations.
In cases of "round shoulders," "narrow chest," etc., it is of great importance to select the proper one of these derivative positions for the movement that is to be used.
 
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