• 디지털융복합연구
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• 제17권4호
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• pp.335-344
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• 2019

본 연구는 청소년의 성별에 따른 스트레스, 스마트폰 중독, 사회적 지지, 생리적 지수가 수면의 질에 미치는 영향을 분석하기 위한 서술적 조사연구이다. 자료는 2018년 2월 6일부터 19일까지 전북지역 2개 고등학교 재학생 210명을 대상으로 구조화된 설문지를 이용하여 수집하였고, SPSS WIN Version 24.0을 이용하여 기술통계, 독립표본 t-test, ANOVA, 다중회귀분석을 실시하였다. 수면의 질은 여학생이 남학생보다 낮게 나타났다. 수면의 질에 영향을 미치는 요인은 남학생의 경우 아침에 일어나는 시간과 학교성적스트레스였고, 이들 변수의 수면의 질에 대한 설명력은 29.6%이었으며, 여학생의 경우 스마트폰 시작 연령, 학교성적스트레스, 일상생활장애 및 평가적 지지였고, 이들 변수의 수면의 질에 대한 설명력은 24.3%이었다. 따라서, 청소년의 수면의 질에 영향을 주는 요인을 해결할 수 있는 중재프로그램 개발에 기초자료로 활용됨으로써 우리 사회의 미래인 청소년들의 건강한 발달에 도움이 되길 기대한다.

• 한국수산과학회지
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• 제55권5호
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• pp.688-696
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• 2022

Obesity could cause immune-physiological disorders in fish. Yet, little is known about the impact of obesity on stress and histological responses. This study aimed to determine histological and physiological changes in and vulnerability of overfeeding-induced obese rainbow trout Oncorhynchus mykiss exposed to stress condition. Control, intermediate and overfed groups were fed at 1.5, 2.5 and 3.09% of their body weight per day, respectively, for eight weeks. Weight gain, body mass index, hepatosomatic index and serological parameters, and histology of liver were measured in five fish from each group at week 0, 2, 4, and 8. At week 8, 20 fish from each group were exposed to heat stress by increasing water temperature at a rate of 3℃ per day from 15 to 25℃ and maintaining the final temperature for 10 days. Overall, overfed fish showed significantly higher weight gain, body mass index, and serological parameters than those of fish in the other groups. Fish in the overfed and intermediate groups displayed multifocal infiltration of inflammatory cells in hepatic parenchyma. Mortality rate and serological parameters of fish in the overfed group exposed to heat stress were significantly higher than those of fish in the other groups, indicating increased vulnerability to environmental stress.

• 한국산학기술학회논문지
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• 제20권1호
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• pp.111-120
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• 2019

본 연구는 55세 이상의 성인 및 노인인구를 대상으로 한방간호 중풍 예방교육 프로그램을 적용하여 연구대상자의 자가 건강인식 변화, 건강 행태변화, 자가관리와 생리적 지수에 미치는 효과를 보기 위한 유사실험연구이다. 자료수집은 2017년 8월 12일~11월 29일까지이며 교육 프로그램에 참여할 것을 동의한 실험군 26명과 대조군 27명 등 총 53명을 연구대상으로 하였다. 연구결과, 교육프로그램 실시 전 실험군과 대조군의 일반적 특성 및 연구변수 등이 통계적으로 유의한 차이가 없어 두 집단은 동질하다고 볼 수 있었다. 가설검정에서 두 집단의 건강인식변화 t=-5.28(p<.001), 건강행태변화 t=-4.24(p<.001), 자가관리 t=-5.28(p<.05), 수축기혈압 t=2.48(p<.05), 이완기혈압 t=2.78(p<.01), 혈당 t=5.91(p<.001), 콜레스테롤 t=-3.94(p<.001) 등은 두 집단 간 통계적으로 유의한 차이를 보여 4가지 가설 모두 지지되어 교육프로그램이 효과가 높은 것으로 나타났다. 이상의 연구결과에서 한방간호 중풍교육은 건강에 대한 인식과 건강행동을 변화시키고, 자가관리 능력을 향상시키며, 생리적 지수를 조절하는데 효과적인 프로그램으로 규명되었으며 차후 효과적인 한방간호중재로서 잘 활용될 수 있을 것으로 기대되며, 지속적인 교육프로그램의 운영과 지역을 확대시켜 교육할 필요가 있다고 보아진다.

• 감성과학
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• 제7권3호
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• pp.51-56
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• 2004

감성을 구성하는 중요한 요소인 각성은 자율신경계 반응으로 잘 측정될 수 있음이 보고되고 있다. 그러나 자율신경계 반응만으로 각성차원과 쾌차원으로 구성된 전체감성을 측정할 수 있을지는 의문이다. 본 연구는 자율신경계 반응으로 전체 감성을 평가할 수 있는지 그 생리적 변수는 무엇인지를 분석하였다. 15명의 대학생을 대상으로 실험 목적을 위하여 제작된 8개의 동영상으로 다양한 감성을 유발했으며 자율신경계의 대표적 생리신화인 맥파(PPG), 피부저항(GSR), 피부온도(SKT)를 측정하였다. 자극제시후 주관적 감성평가를 실시하였다. 주관적 감성경험은 크게 3가지 요인으로 구성된 것으로 확인되었으며, 그 중에서 2개의 요인과 생리적 지표를 대응시키는 방안이 탐색되었다. 그 결과, 생리적 지표는 신체적으로 흥분할수록 감성경험에 따라 더욱 분명한 차이를 드러내지만 흥분수준이 낮은 경우에는 생리적인 지표만으로는 감성경험을 예측하기 어려웠다. 흥분과 평온함을 제외한 다른 감성 요인은 생리적인 지표와 직접 대응이 쉽지 않은데, 이는 상관관계가 없어서가 아니라 모든 생리지표와 감성간에 복합적인 관계가 있기 때문이었다. 특히 SKT는 흥분-평온함만을 반영하는 GSR, PPG와는 달리 불쾌-유쾌 경험과도 상관이 있는 것으로 나타났다. 따라서 SKT 지표와 불쾌-유쾌 감성 차원의 대응 가능성이 논의되었다.

• Journal of Nutrition and Health
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• 제31권3호
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• pp.243-252
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• 1998

This study was conducted to investigated the short-term effects of early weaning and protein intake on organ and cell growth, nitrogen metabolism and physiological functions of rats. Five groups of early weaned rats separated from the dam on the 15th day postpartum were each given one five diets consisting of either one of the three levels of casein-low(8%), -normal (16%), and -high(32%), or a normal level (16%) of isolated soy protein(ISP) or egg yolk protein, for 7 days. The normal weaned rats were fed maternal breast milk for three weeks from birth. On the 22nd day postpartum , all the rats were sacrificed . The weight gain of the early weaned rats, especially the ones fed high protein, was observed to be significantly lower than that of the normal weaned rats. By the 15th day, of early weaning and especially in the ISP-fed rats, the total DNA contents of liver and kidney, which may be said to represent an index of cell numbers, significantly decreased, but their fresh and dry weight and protein/DNA ratio, allegedly representing an index of cell size, significantly increased , not affecting the cell number and cell size of brain. There were no differences in total serum protein and albumin concentrations between early and normal weaned rats. In the early weaned rats observed , the serum urea N and $\alpha$-amino N concentrations significantly increased in high protein-fed rats, and decreased in low protein-fed rats. Another observation was that no significant difference was noticed as regards to serum GOT activity, total bilirubin, uric acid, and creatinine concentration, which may represent indices of liver and kidney functions, among rat groups, GPT activity was an exception . These results suggest that premature weaning and the quality and quantity of dietary protein significantly affect organ and cell growth and nitrogen metabolism but does not seriously affect physiological functions in the neonatal development of rats.

• 스트레스연구
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• 제27권2호
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• pp.199-204
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• 2019

본 연구는 불안민감도가 과제수행과 스트레스 반응에 미치는 영향을 살펴보고, 이 과정에 우울감은 어떠한 영향을 미치는지 확인하였다. 참가자들은 제한된 시간에 암산 문제를 완수하였고, 불안민감도지수와 우울증 선별도구에 응답하였다. 더불어, 실험 전후 참가자들의 코르티졸(Cortisol) 변화량을 확인하였다. 그 결과, 불안민감도가 높은 사람은 과제수행의 정확도가 떨어지고 코르티졸 수치가 유의미하게 상승하였다. 또한, 불안민감도와 우울감이 모두 높은 참가자들이 코르티졸 수치가 가장 크게 상승하였다. 본 연구는 자기보고식 응답에 근거하여 임상증상을 기술하는 것을 넘어 과제수행의 정확도와 생화학적 지표를 함께 제시함으로써, 보다 안정적으로 개인의 불안민감도와 우울감의 관계를 논의하였다는 의의를 지닌다.

• 지역사회간호학회지
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• 제21권1호
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• pp.118-127
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• 2010

Purpose: The purpose of this study was to evaluate the effects of a Tai-Chi exercise program on subjective health and physiological function index. Methods: This study was designed as non-equivalent control group pretestposttest research. Eighteen women in each group completed the posttest with an attendance rate of 78.3 % after 12 weeks. The Tai Chi exercise program was provided two times a week over three months for the experimental group, but no program for the control group. A questionnaire was used for subjective health index, which consisted of Korean-WOMAC Index for joint stiffness, K-HAQ for physical disability, EQ-5D for quality of life and perceived health status, and CES-D for depression. To measure the effect on the physiological function index, femoral muscle strength, shoulder joint and back flexibility were measured. Results: All variables except left anterior femoral muscle strength had significant homogeneity between the two groups. There were statistically significant differences between the experimental group and the control group in joint stiffness (t=-2.165, p=.03), physical disability (t=-2.231, p=.038), EQ-5D index (t=3.783, p=.001), perceived health status (t=-2.349, p=.025) and femoral posterior muscle strength (t=2.487, p=.038). Conclusion: The Tai-Chi exercise program was beneficial for women with arthritis in rural communities.

• Journal of Preventive Medicine and Public Health
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• 제39권6호
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• pp.462-468
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• 2006

Objectives : The purpose of this study was to gain an understanding of the effects of three exercise types on anthropometric and serum lipids and physiological index factors, which are known to be the three risk factors of cardiovascular disease in male workers. Methods : The experimental study period was 12 weeks. In this study, 30-40's males (N=31) were assigned to 3 experimental groups: regular aerobic(treadmill walking) exercise group, regular anaerobic(muscular endurance) exercise group, irregular aerobic & anaerobic exercise group and a control group using a stratified random assignment method. Results : In relation to anthropometric factors, the regular aerobic & anaerobic exercise groups showed significant decreases in Weight, Broca's index, WC, BMI, WHtR, WHpR and HRrest. With regard to the serum lipid factors, the TC was decreased, but the HDL-c increased among the regular aerobic & anaerobic exercise groups. However, no significant difference was found between the other groups in respect to the LDL-c and TG. Considering the physiological factors, the TC/HD-c, TC-HDL/HDL-c, LDL-C/HDL-c and NON-HDL-c ratios were decreased, but the HDL-c/TC ratio increased among the regular aerobic & anaerobic exercise groups. The TG/HDL-c and HDL-c/LDL-c ratios showed no significant differences between the groups. These results indicated that the positive change for each factor is much larger in the regular exercise groups, especially in the anaerobic exercise group. Conclusions : The results indicate that not only regular aerobic exercise, but also regular anaerobic(muscular endurance) exercise could be utilized in lessening the deleterious effects of the risk index factors for cardiovascular disease.

• 제어로봇시스템학회논문지
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• 제8권12호
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• pp.1061-1065
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• 2002

Sensors need to be implanted to obtain necessary information for LVAS (Left Ventricular Assist System) operations. Size of the sensors can prevent them from being implanted in a patient and reliabilities of the sensors are questionable for a long term use. In this wort we utilize a developed pump model to estimate flow and pressure difference across the pump without implanted sensors and present a method to obtain the physiological variables as aorta pressure and left ventricle pressure from the pump model and pulsatility of flow estimate or pressure difference estimate. These estimated variables can be used for LVAS control as an index or indices.

• 한국발생생물학회지:발생과생식
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• 제22권4호
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• pp.319-329
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• 2018

The experiment was conducted for 210 days to determine the effect of feeding, and starvation, and exposure to sodium nitrite ($NaNO_2$) on the survival, physiological changes, hematological parameter, and stress response of Far Eastern catfish, Silurus asotus. The survival of the starved group was lower than that of the fed group during the experiment. Starvation resulted in retardation of growth, which provides an example of fish that failed to continue to grow and remain in a good condition. Blood analyses (cortisol and glucose) showed significant differences of stress response between the fed and starved groups exposed to $NaNO_2$ at the conclusion of the experiment (p<0.05). These results suggest that all nutritional parameters used for starvation and feeding with $NaNO_2$ stress in this experiment appear to be a useful index of nutritional status in Far Eastern catfish.