The purpose of this study was describe sleep-wake rhythms of elderly people, who experienced of environmental change from their home to nursing home, continuously by using activity monitors (actigraph).
　The subjects were 11 elderly people, admission to nursing home for short stay program. Mean age was 85.3(± 5.4), admission for short stay was 3 to 20 times in same nursing home. Compare actigraph data at home with nursing home, there was no statistically significant, activity count, total sleep time, total wake time, sleep episode, and amplitude.
　By inspection of daily actigraph data, the pattern of change of sleep-wake rhythms were classified into 3 patterns,
　(1) Monophasic sleep pattern at home and nursing home (n＝5),
　(2) Multiphasic sleep pattern at home and nursing home (n＝5),
　(3) Multiphasic sleep pattern at home, monophasic sleep pattern at nursing home (n＝1).
　Activity count, total wake time and amplitude was significantly decreased, and total sleep time was significantly increased multiphasic sleep pattern elderly. They were significantly increased severity of dementia (NM scale : p＝0.047) and decreased activity of daily living (Barthel Index : p＝0.0008). The results of this study suggest that importance of conformity care to individual sleep patterns of elderly people.

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　The hospital bed-rest with keeping voluntary controlled movement like the leg extension applied after catheterization and many lessinvasive interventional treatments throughout the catheters or fiber-scope. The purpose of this study was to determine the effect of prior period time notice on autonomic nervous activity in maintaining supine posture with voluntary controlled movement. Coarse Graining Spectral Analysis (CGSA) which is the one ofspectral analysis of heart rate variability (HRV) have been used to study antonomic nervous activity. Twenty seven healthy volunteers were exposured the 135min bed-rest and randomly assigned the following three groups ; Group I : prior period time notice and voluntary controlled movement ; Group II : no prior period time notice, but keeping with voluntary controlled movement ; Group III : no prior period time notice, but no keeping voluntary controlled movement only lying the bed. The spectrum analysis parameters both sympathetic indicator and parasympathetic indicator were statistically significant different (p＜0.05) between Group I and Group II, and also between Group I and Group III. But no significant difference between Group II and Group III were there. Additionally, the highest levelof sympathetic nervous activity was Group II (no time information), the lowest one was Group I given prior period time notice. These results would suggest that the prior period time notice was sufficient to block inducing stress response which causing bed-rest with voluntary controlled movement.

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　The purpose of this study was to examine the temporal changes of mood, pain and autonomic nervous system of gynecologic surgery patients from preoperative day to 7 postoperative days.
　The mood scale was comprised nine stages “from very bad to very good” which the researcher prepared. The pain scale was Visual Analogue Scale (VAS). The measurement of automatic nervous system was conducted by using Coarse Graining Spectral Analysis (CGSA) method－LF/HF as an index of sympathetic nervous system ; HF as an index of parasympathetic nervous system.
I collected the data of the previous items form 6 patients who underwent an abdominal operation of hysteromyoma or ovarian cyst (average 45.0 years old).
In pre operative day, there are two patterns of automatic nervous activities, which were sthenic of LF/HF and HF/TP that mean the stress reaction of receiving the operation. From 1POD to 2POD, the mood, pain and automatic nervous system changed remarkably that mean the stress reaction of the operative injure.
After 3POD, the mood and pain were recovered. I found that LF/HF was stable when HF/TP that deteriorated after the operation once was restored, and LF/HF was sthenic when HF/TP was sluggish.

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　The purpose of this study was to investigate of influences of Back-hot-compress-care (Back-care) on mood, pain and autonomic nervous system of gynecologic surgery patients from preoperative day to 7 postoperative days.
The mood scale was comprised nine stages “from very bad to very good” which the researcher prepared. The pain scale was Visual Analogue Scale (VAS). The measurement of automatic nervous system was conducted by using Coarse Graining Spectral Analysis (CGSA) method－LF/HF as an index of sympathetic nervous system ; HF as an index of parasympathetic nervous system.
I collected the data of the previous items from 4 patients who underwent an abdominal operation of hysteromyoma or ovarian cyst (average 38.4 years old).
The findings are follows. The Back-care brought about significant raise of the mood and reduction in the pain. When LF/HF was sthenic, the Back-care brought about the increase of HF/TP that was decreased LF/HF. And when HF/TP was sthenic, the Back-care brought about the decrease of HF/TP that was increased LF/HF. Therefore I found that the Back-care has the action of adjustment to balance LF/HF and HF/TP.

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　Using an animal model of pressure ulcers that considered malnutrition, a principal factor involved in pressure ulcer formation, we investigated a method for estimating pressure ulcer development. The body weight of the studied rabbits with malnutrition was significantly lower than normal, and the animals were confirmed to have protein deficiency by serum tests. Pressure ulcers were produced in these rabbits by exposing the skin over the trochanter to a pressure of 500 g/cm² (370 mmHg) The ulcers produced were of two types : difficult to heal and easy to heal. As the pressure ulcers appeared to show a low skin surface temperature, we investigated a method for examining the effects of circulatory failure on compressed skin using a spot thermometer normally employed in clinical practice. Our study demonstrated that the compressed skin around ulcers that were difficult to heal was 1.0℃ cooler than that around normal skin, suggesting that this was a factor in the formation of such pressure ulcers. Ulcers induced by multiple thrombosis in the blood plexus of the lower dermis will lead to critical failure of the circulation, and the resulting changes in skin surface temperature can be measured easily using the spot thermometer we employed. Measurement of changes in skin temperature will be useful in clinical practice for monitoring the formation of pressure ulcers that are difficult to treat.

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[in Japanese]

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[in Japanese]

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