This study was undertaken to find out the relationship between subjective evaluation on sleep and nocturnal polygraphic findings in women during pregnancy and postpartum periods, and also to detect the changes of sleep patterns during those periods.
Seven women in 11 to 37 weeks of pregnancy and four in 1 to 7 weeks of post-partum period were studied. Four non-pregnant healthy women selected as a control group. Nocturnal sleep recordings included EEG, EOG, EMG, and ECG. The data were recorded during three consecutive nights,and sleep records were scored according to the criteria outlined by Rechtshaffen & Kales. The data on subjective evaluation were collected by using a questionnaire.
It was found that two types of subjective evaluation of sleep among the subjects; one was a mono-phasic pattern, and the other was a multi-phasic pattern. In the women with a mono-phasic type, the polygraphic findings showed normal sleep pattern.
The sleep efficiciency rate of the pregnant group, especially in the third trimester, was lower and the sleep was poor than that of the non-pregnant group, The sleep efficiency rate in the early postpartum period was further lower than that in the third trimester of pregnancy, though%S4 increased.

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The purpose of this study was to evaluate the effects of a nursing care as continous attending with mother to reduce matermal anxiety in labor and delivery. The subjects who expressed informed consent were 18 married women, 18 to 37 years old, with no complicating medical or obsteric conditions, and no physiologic and psychosocial problem.
Initial assignment of mothers to exprimental (attending by a invesitigator as nurse) or control group (routin care) was random. In order to measure matermal anxiety mulilaterally, comparisons of the self-reported anxiety, plasma catecholeamine, labor pain, and Lamaze method evaluation was provided during labor and delivery on 2 groups. Finding were maternal anxiety was the state anxiety promoted by condition of delivery and it was concluded that the continous attending by a nurse had some beneficial effects to reduce matermal anxiety.

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A method employing the continuous measurement of body pressure, skin temperature and relative humidity in the air adjacent to the skin was investigated. In order to make clear the relation to the occurrence of decubitus ulcer, a measuring apparatus was devised. This apparatus enabled us to measure simultaneously local body pressure in 20 points, skin temperature in 6 points and relative humidity in 4 points at 10 second intervals.
Distribution of body pressure around the sacrum for 6 healthy adult women was measured using this apparatus. A linear set of 20 sensors was put on a Jacobi line as a base line, and it was shifted downward in succession at 2 cm intervals. Thus, a measurement totalling 300 points in the area of 40cm×30cm was taken.
The region of high body pressure coincided with the sacrum area. The highest value and the area with a pressure of over 100 g/cm² differed with the subject though the portion with the highest value was on the median line in many cases.
The measurements with the highest value were 0-5 cm lower when measured in dorsal position than in prone position.
The measuring apparatus employed in this report has many advantages compared with a customary instrument. It is suitable for a measurement in narrow area, and it is especially capable for a rapid and continuous multi-point measurement.

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Body pressure distribution was measured in the hip region of adult women lying on a flat wooden plate in the dorsal position. Thirty women subjects were divided into three groups of ten each, that is, fat, normal and thin types with regard to physical constitution.
The method and measuring apparatus were the same as in the previous report.
The total pressure load of the hip region and the sacrum was fat type>thin type>normal type.The load receiving area, however, was fat type>normal type>thin type. The result showed that the thin type received a relatively high pressure load considering its small load area. The pressure distribution was indicated more clearly by using an isobaric figure or a three dimensional display.
Both the distance from the Jacobi line to the sacrum in the prone position and the distance from the Jacobi line to the region of the highest pressure value in the dorsal position did not seem to have any significant relation to physical constitution.

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