• Tuberculosis and Respiratory Diseases
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• v.44 no.2
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• pp.309-320
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• 1997

Background : There are many suggested methods for the indirect determination of anaerobic threshold(AT) using the changes of ventilatory parameters in response to ventilatory load accompanying the increase of blood lactic acid level during exercise and the threshold derived from them is called ventilatory threshold(VT). They include ventilatory equivalent method(VEM), End-tidal $PO_2$ method($PETO_2$). V-slope method(VSM), and respiratory quotient method(RQ). But in the patients with chronic airway obstruction(CAO), the AT determined by ventilatory methods may not reflect true AT because the patients with CAO show inadequate ventilatory response to the increase of blood lactic acid level during excercise. Methods : For the investigation of detection rate and reliability of above four VT determination methods in the patients with CAO, we performed the symptom-limited and maximal incremental exercise test in 17 patients with CAO and 12 normal controls. The incremental workload was 10 W /min in CAO group and 25 W/min in control group. The reliability of VT in each group was investigated by the calculation of Spearman correlation coefficient. Results : The detection rates of VT were 100% by RQ, 91.7% by both VEM and $POETO_2$, and 83.3% by VSM in normal control group, while 94.1% by RQ, 64.7% by VEM and $PETO_2$, and 83.3% by VSM in CAO group. Good correlations were noted among VEM, $POETO_2$, and VSM except RQ in normal control group. But there was no significant correlation except between VEM and $PETO_2$ in CAO group. Conclusions : RQ is very sensitive but crude and VEM is near similar to $PETO_2$. The clinical usefulness of VT determined by ventilatory method might be limited in patients with severe CAO.

• Korean Journal of Cognitive Science
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• v.31 no.4
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• pp.103-136
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• 2020

This study compares the parafovea preview effect of adolescent group and adult group with different ages using eye tracking experiment. Also, this study confirms that the starting point parameter of the one boundary diffusion model can explain the data obtained through eye tracking experiments. In two experiments, parafoveal information processing was examined using the boundary technique. In Experiment 1, reading times were compared between the conditions given high frequency words preview versus masking preview. In Experiment 2, the condition in which low frequency words were given to parafovea preview information and the condition in which parafovea preview was masked were compared. We found that both the adolescent group and the adult group showed a parafovea preview effect. Also, first fixation, single fixation, and gaze duration of the two groups were different based on the word property shown in the parafovea. The first fixation data obtained in the two experiments were divided into quantiles and fitted into one boundary diffusion model. From the results, we argue that the parafovea preview information processing in the reading was described as the starting point parameter of the one boundary diffusion model.

• Journal of Life Science
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• v.19 no.9
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• pp.1299-1303
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• 2009

The purpose of this study was to analyse the gait characteristics of stroke patients walking on a Zebris system, through quantitative three-dimensional biomechanical analysis. They underwent a continuous rehabilitation training program (RTP). A comparison was made between 3 month and 6 month RTP participants. Their ages were between 60 and 65. The data were analyzed by t-test. The result of comparative analysis of the two groups can be summarized as below. Temporal-spatial data, sagittal plane angular kinematics data, and peak ground reaction force and max pressure data showed that there were no significant differences between the 3 month RTP group and the 6month RTP group (Table 2, Table3, Table 4). It can be suggested that patients with hemiplegia after stroke can improve their walking function through continuous RTP participation.

• Journal of the Korea Convergence Society
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• v.6 no.5
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• pp.187-197
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• 2015

The purpose of this study is to analyse the convergent factors which influence on the stages of exercise behavior change of middle-aged women. 200 middle-aged women surveyed, 41 to 64years old, is residing D city, Chung-Nam province, who understand the purpose of this study and agree to participate in this study. This study data is analyzed by using frequency, percentage, standard deviation, t-test, $x^2$ test and Logistic regression analysis. The study show that the social support factors(${\beta}$=.998, p=.010) and the motives of exercise(${\beta}$=3.407, p<.001) among middle aged women have an effect on the stages of exercise behavior change meaningfully. That is, the social support of middle aged women who have exercise behavior change is 2.5 times higher than middle aged women who don't have exercise behavior change, and the motives of exercise is 20.1 times higher. Based on theoretical ground, this study suggests that government and community seek programs for promoting the exercise behavior, considering the motives of exercise and the social supports.

• Journal of Life Science
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• v.21 no.4
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• pp.542-548
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• 2011

Food-dependent exercise-induced anaphylaxis (FDEIA) is a distinct form of food allergy induced by physical exercise. It is typified by the onset of anaphylaxis during exercise, which is preceded by the ingestion of causal food allergens. Diagnosis of FDEIA is heavily dependent on clinical history. To describe the physiopathological mechanism, etiologic factors, and clinical manifestations, we evaluated the spleen index, proliferation assay of lymphocyte, ROS, ASAS, and cytokines levels in sensitized and exercise-trained mice. One-hundred mice were bred in the animal lab at D and P university under controlled conditions [$22{\pm}2^{\circ}C$, RH 45-55%, and a 12-hour photoperiod]. Animals are 7-weeks-old at the time of study and were fed a standard commercial chow diet from 09:00 to 15:00 over the 8-week study period. The mice were allowed access to distilled deionized water ad libitum. Daily food intake and weekly body gains were routinely recorded throughout the experimental period using computing scale (CAS). Mice were divided into the control group (S; control sensitized, n=25), 30 min swim training group (S30, N=25), 50 min swim training group (S50, N=25), and 80 min swim training group (S80, N=25). The results were as follows: Spleen index showed the highest level in the S80 group compared to other groups; this level was exercise-dependent. In proliferation assay of Med and OVA, the S80 group showed the highest level compared to the other groups; this level also was exercise intensity- dependent. Peritoneal ROS and IL-4 showed a statistically significant difference compared to S; however, there was no significant differences in ROS among S30, 50, and 80. From the results, we concluded that FDEIA is correlated with exercise intensity based on the levels of peritoneal ROS and cytokine profiles.

• Journal of Korea Entertainment Industry Association
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• v.14 no.8
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• pp.427-436
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• 2020

This study aims to understand human rights sensibility in university varsity teams and to compare and analyze differences in human rights sensibility by variables related to university varsity teams. In order to achieve the purpose of this study, 188 student-athletes from 10 universities were selected. The collected data were analyzed in descriptive analysis, reliability analysis, one-way ANOVA, Scheffe using IBM SPSS 24.0. First, based on the episodes, the episodes with the highest human rights sensitivity are the right to labor of migrant workers and happiness rights, and the episodes with the lowest human rights sensitivity are the right to freedom of detention and privacy rights. In addition, among the sub-factors of human rights sensitivity, perception of responsibility and perception of behavior are higher than perception of outcome. Second, there are differences in the human rights sensitivity of the university varsity team depending on the size and the level of performance of the university varsity team. Third, there are differences in the human rights sensibility of the university varsity team depending on the educational characteristics (volunteer activity and human rights education) of the university varsity team.

• Journal of the Korean Society of Food Science and Nutrition
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• v.38 no.3
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• pp.319-332
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• 2009

The present study was performed to analyze the life style and eating behavior of stroke patients and to find the risk factors related to stroke incidence in Daegu and Gyeongbuk Province, Korea. The case subjects (n=100) were selected from newly diagnosed stroke patients at Kyungpook National University Hospital. The control subjects (n=150) were selected from community inhabitants who did not have stroke history and were sex and age-matched with the case subjects. The survey was conducted by individual interviews using questionnaires on the general characteristics, life-style, eating behavior, food intake frequency and food preference. The high body mass index, preexisting diseases such as diabetes and hypertension, stroke family history, smoking, overeating habit and high preference for sweet, greasy and meat foods appeared to be the risk factors for stroke incidence. On the other hand, the results suggest that life style of regular exercise and nonsmoking, food habits of green tea drinking and enough chewing, preference for Korean meal type, high intake frequency for legumes, vegetables, mushrooms, seaweeds, fishes and shell fishes, soy milk and green tea might be the protective factors for the stroke. Therefore, maintenance of healthy weight, the prevention and management of the deteriorative chronic diseases, change of life style and improvement of eating behaviors are considered to be important for stroke prevention.

• Journal of Oral Medicine and Pain
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• v.9 no.1
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• pp.117-125
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• 1984

악관절 기능장애증의 증상 및 임상소견에 관해 많은 연구가 보고되었으나 국내에서는 이에 대한 연구가 미비한 편이며, 이들간의 상호 관련성을 조사한 연구는 별무하였다. 이에 저자는 1983년 3월부터 1984년 7월 사이에 서울대학교 병원 구강진단과에 내원한 악관절 기능 장애증 환자 367명 중 방사선 사진상으로 기질적인 변화를 보이지 않는 327명을 대상으로, 증상 및 임상소견에 관한 조사와 아울러 악관절 동통이 하악 운동에 미치는 영향에 관해 연구한 결과 다음과 같은 결론을 얻었다. 1. 악관절 기능장애증은 약 3:1의 비율로 여자에게 빈발하였고, 15세에서 29세까지의 청장년 층에 많았다. 2. 악관절 기능장애증 환자가 경험한 주 증상은 동통, 관절잡음, 개구장애 등이었다. 3. 관절잡음은 편측성인 경우가 많았고, 좌우 발현 빈도는 비슷하였으며 말기의 관절잡음이 많았다. 4. 악관절 기능장애증의 발병 기간은 1개월 이하인 경우가 많았다. 5. 악관절 동통은 개구와 하악 전방운동을 제한하는 것으로 추정된다. 6. 악관절 동통은 동통이 있는 쪽으로 하악 개구로의 편위를 일으키는 것으로 추정된다.

• Journal of Ocean Engineering and Technology
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• v.33 no.1
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• pp.10-16
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• 2019

The aim of this study was to improve the vertical motion performance of floating marina structures and to optimize the shapes of the structures for the Korea coastal environment. The floating body is connected to a plate-shaped submerged body through a connecting line under the water that has a stiff spring that serves to reduce the heave response. This system, which has two degrees of freedom, was modelled to analyze the interaction between the floating body and the submerged body. The vertical motion of the two-body system was compared with the motion of a single body to verify that the system could perform as an optimized model.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.05a
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• pp.491-493
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• 2021

최근 코로나 19 상황으로 인해 많은 사람들이 모이는 병원 방문을 꺼리거나, 치료비에 부담을 느끼는 근골격계 재활 환자들이 많다. 이러한 환자들을 위해 이 프로젝트에서는 재활 치료 빈도가 높은 어깨와 손목 등 여섯 가지 근골격 부위의 자가 재활 치료를 돕는 기계 학습 기반 웹 페이지을 구현한다. 이 웹 페이지는 각 부위에 대한 재활 치료 자세를 구글 티처블 머신으로 학습 시킨 데이터를 기반으로 환자가 올바른 자세로 운동하는지를 판별해 준다. 이 때, 사용자의 재활 치료 자세는 웹 카메라로부터 캡쳐한다.