• 동의신경정신과학회지
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• 제27권2호
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• pp.89-101
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• 2016

Objectives In human, there is a diversity in the breathing pattern, for instance inspiratory and expiratory time, volume, breathing frequency, and breath-to-breath variation. Expecially, respiratory variability can provide important information about breathing regulation and physiological flexibility. it is significant to not only breathing index but also physiological index.Methods Thus this paper reviews the literature on respiratory variability with the aim of clinical application.Results We could find the interrelationships and respiratory variability between emotions, psychopathy, sighing, mental and physical activity.Conclusions As a result, respiratory variability can serve an important physiological index in the clinical area and reflects how our bodies act in diverse environments under various condition.

• 대한의용생체공학회:의공학회지
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• 제29권5호
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• pp.400-407
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• 2008

A health index was proposed that evaluates personal health state from both measured physiological variables and survey questions. Four health indices were defined such as cardiovascular index, stress index, obesity index, and management index. The total health index was calculated by summing these four health indices. Physiological variables such as blood pressure, heart rate variability(HRV), accelerated photoplethysmograph(APG), and body fat percentage were non-invasively measured and a survey questionnaire that asks personal health state, exercise intensity, and food preference was developed. The suggested health index was applied to thirty eight persons including 30 patients and 8 normal persons with an average age of 51.8. The average health index was estimated to be 75.1 out of 100 points. Young age group(below 50) and men group showed higher health indices than the aged(over 50) and women groups. The correlation coefficient between the cardiovascular index and stress index was found to be 0.513, which means stress is related to cardiovascular health state. The correlation coefficient between the measurements and survey questions was 0.385 for the cardiovascular index. It was as low as 0.182 for the stress index. More case studies may improve correlations between measurements and survey questions, and then, the current health index system may develop as an effective tool to evaluate personal health state.

• 한국전문물리치료학회지
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• 제13권3호
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• pp.67-74
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• 2006

The purpose of this study was to investigate the effects of walking aid on hemiplegic gait of chronic stroke patients. Twelve stroke patients participated in this study. Physiological cost index (PCI), gait speed, and climbing stairs with and without walking aid were measured and analyzed. The results showed that walking with walking aid significantly improved gait speed and reduced physiological cost index and time needed to climb stair (height 7 cm) in comparison with a walking without walking aid. In conclusion, walking aid may improve the speed and efficiency of hemiplegic gait in chronic stroke patients.

• 한국전문물리치료학회지
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• 제13권1호
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• pp.32-37
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• 2006

The purpose of this study was to investigate the effects of clinical characteristics of chronic stroke patients on physiological cost index (PCI) during walking. Fourteen stroke patients participated in this study. To investigate the clinical characteristics, Fugl-Meyer score (FMS), gait velocity (GV), muscle strength of the knee extensor, modified Ashworth scale (MAS) of ankle plantar flexor, devices, and gait patterns during walking were measured and analyzed. The results were as follows: Firstly, use of devices and high MAS of the ankle plantar flexor significantly increased PCI. Secondly, PCI was significantly correlated with the FMS and MAS of the ankle plantar flexor. In conclusion, inhibition of spasticity of the ankle plantar flexor is considered to reduce PCI during walking for chronic stroke patients.

• 대한원격탐사학회지
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• 제33권5_1호
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• pp.507-519
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• 2017

정규식생지수(NDVI, Normalized Difference Vegetation Index)는 생물량 및 $CO_2$ 흡수량 추정과 병충해 탐지 등 다양한 식생 모니터링 영역에서 활용되고 있다. 그러나, 생물량 탐지에 비해 상대적으로 식생의 생리적 상태 변화에 대한 민감도가 낮아 식생의 생리적 활성 및 스트레스를 파악에 한계가 있다. 최근 개발된 광학반사지수(PRI, Photochemical Reflectance Index)는 식생의 생리적 상태 탐지에 용이한 것으로 알려지고 있으며, 식생의 탄소 흡수량 조사를 위해 향후 발사될 해외의 지구관측위성들의 주요 산출물로 선정되는 등 활용도가 높아질 것으로 전망된다. 이에 다양한 이용에 앞서 광 스트레스에 민감한 PRI 특성을 고려하여 그림자 영향의 해석 방향을 제시하고, 현재 가용한 위성으로 PRI 산출이 가능한지 알아보기 위해 대체 밴드를 평가하였다. 항공 초분광 영상을 이용한 본 연구에서는 PRI값이 그림자 부분에서 광 스트레스의 감소로 인해 증가하였다. 그러나 그림자의 정도가 임계값(Shadow Index<25)을 넘어서면 PRI와 NDVI 모두의 자료 품질이 매우 낮아졌다. 또한, 문헌의 570.0 nm 대신 553.6 nm를 사용하여 산출한 PRI가 오리지널 PRI와 높은 상관관계를 보였으며, RED와 NIR 반사도를 이용하여 다중회귀분석을 수행하였을 때 더욱 향상된 결과를 보였다. 이러한 결과는 향후 식생탐지에서 활용도가 높아질 것으로 기대되는 PRI의 생리적인 의미를 이해하는데 도움이 될 것이다.

• 대한간호학회지
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• 제36권1호
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• pp.15-24
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• 2006

Purpose: This study was to examine the effects of foot reflexion massage on sleep disturbance, depression disorder, and the physiological index of the elderly in nursing homes. Method: The research design was a non-equivalent control group pretest-posttest quasi-experimental study. The subjects in this study were 50 elderly people who resided in two different nursing homes in the same region. An experimental group and a control group were organized with 25 subjects respectively, and foot reflexion massage was provided for 12 sessions, 30 minutes per session. The selected dependent variables were sleep disturbance, depression disorder, and physiological indices(blood plasma serotonin, serum cortisol), which were all measured before and after foot reflexion massage was offered. Data analysis included $x^{2}$-test, t-test, paired t-test, and ANCOVA, using the SPSS program package. Result: 1. The experimental group improved sleep quality more than the control group. 2. The experimental group had less depression disorder than the control group. 3. The experimental group had higher serotonin levels than the control group. Conclusion: It's necessary to give foot reflexion massage as a successful nursing intervention to elderly who undergo a change in sleep, and suffer from a depression disorder due to a deterioration in sleep.

• Asian-Australasian Journal of Animal Sciences
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• 제32권9호
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• pp.1332-1339
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• 2019

Heat stress exerts a substantial effect on dairy production. The temperature and humidity index (THI) is widely used to assess heat stress in dairy operations. Herein, we review the effects of high temperature and humidity on body temperature, feed intake, milk production, follicle development, estrous behavior, and pregnancy in dairy cows. Analyses of the effects of THI on dairy production have shown that body temperature is an important physiological parameter in the evaluation of the health state of dairy cows. Although THI is an important environmental index and can help to infer the degree of heat stress, it does not reflect the physiological changes experienced by dairy cows undergoing heat stress. However, the simultaneous measurement of THI and physiological indexes (e.g., body temperature) would be very useful for improving dairy production. The successful development of automatic detection techniques makes it possible to combine THI with other physiological indexes (i.e., body temperature and activity), which could help us to comprehensively evaluate heat stress in dairy cows and provide important technical support to effectively prevent heat stress.

• 로봇학회논문지
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• 제4권4호
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• pp.327-333
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• 2009

This paper describe the riding robot system named by "RideBot" which is a riding robot like as a horse. In order to simulate the riding motions, we develope the saddle mechanism which can generate 3 DOF motions including pitch, roll, and bounce movement, and also we controlled the riding motions and the intention of horseman. To generate the riding motions with the bodily sensation, we developed Novel Washout Filter and the algorithms for motion control. And also, we developed some health care service for the health care of horseman. A body state index was proposed that evaluates the personal health state from both the measured physiological variables and the surveyed questions. The physiological variables such as weight, blood pressure, heart rate variability (HRV), accelerated state photoplethysmograph(APG), body fat, and happiness index were measured by the specially designed bio-handle system and survey questions. The efficiency of the proposed ride robot is evaluated in the experiments.

• 사상체질의학회지
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• 제21권3호
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• pp.107-121
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• 2009

1. Objectives: We aimed to know what are different in physiological and pathological symptoms associated with health state according to Sasang Constitution in women 2. Methods: We recruited 338 women between 10 and 80, excluding individuals who have physically or psychologically serious disease, or women in pregnancy among Korean population in Traditional Korea Clinics. We used CRF(Case Report Form, C-2009-002439) as measurement of physiological and pathological symptoms and SF-36 (Short Form-36) as measurement of health state We analyzed association between physiological and pathological symptoms and health state with Two-way ANOVA 3. Results: There are 9 different symptoms associated with health state, such as digestion state, uncomfortable problem in belly, indigestion in bad condition, abnormal sweat, night sweat, clean in urine, no problem in urine, feel heavy in chest according to Sasang constitution. 4. Conclusions: Physiological and pathological symptoms are associated with health state and some symptoms associated with health state are different according to Sasang Constitution in women.

• 한국식품영양학회지
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• 제27권5호
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• pp.962-970
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• 2014

This study was performed to compare the physiological effects of puffed snack on diabetic and geriatric diseases using miscellaneous cereals and grain crops. The puffed snacks were prepared with different amounts of miscellaneous cereals and grain crops (in ratios of 10%, 20%, and 30% of brown rice). Changes in the water soluble index, water absorption index, color, antioxidant activity, total polyphenol content acidity, ${\alpha}$-glucosidase inhibition activity, and sensory evaluation were also determined. As the cereal and crop contents increased, the value of the water soluble index increased while the water absorption index decreased, with the exception of glutinous foxtail and barnyard millets. With respect to color, lightness and yellowness decreased in concert with increases in the cereal and crop contents, whereas redness increased. Furthermore, the antioxidant activity and total polyphenol content as well as ${\alpha}$-glucosidase inhibition activity increased remarkably with increasing concentrations of sorghum. There was no significant difference in the physiological activities depending on the addition of millet, barley and barnyard millets. In sensory evaluation, the puffed snacks containing sorghum, millet, and glutinous foxtail millet received higher values than other samples. Altogether, our results indicate that puffed snacks containing 10~20% sorghum could be suitable as ingredients for improving sensory and physiological activities in diabetic and geriatric diseases.