[Labour intensity and intervals. A contribution to the problem of origin and spread of uterine contraction (author's transl)].
Basing on external tocograms from the first stage of labour, the intensity of labour was compared with the preceding and subsequent labour interval. The following relative criteria of the intensity of labour were determined: amplitude, medium distance between the upward and downward slope, and the product of the factors. It was found that the intensity of labour depended on the preceding labour interval, whereas no connection between intensity of labour and the subsequent labour interval was noticed. The results are in favour of a myogenous origin and spread of the labour. The longer the muscle fibers are at rest between the individual labours, the more intense will the following labour be, which is produced by spontaneous local contraction.
D005260:Female; D006801:Humans; D007743:Labor, Obstetric; D011247:Pregnancy; D014590:Uterine Contraction
Wehenstärke und Wehenabstand. Ein Beitrag zur Frage der Entstehung und Ausbreitung der uterinen Kontraktion.