• 대한인간공학회지
• /
• 제14권1호
• /
• pp.97-104
• /
• 1995

The widespread use of VDU has improved the efficiency of information transmission between man and machine, but has caused new occupational health and ergonomics problems. In this study, we tried to construct a fuzzy hyman performance model of VDU workers in Korea. Fuzzy inferences of human perfor- mance are obtained from the fuzzy inference rule with the job difficulty, CFF, SACL, Type A. and the degree of concentration in VDU work. Eight healthy female undergraduate students at Kyungnam university for subjects aged 20 to 23 years were examined in this experiment. They calculated continuous addition, subtraction, and multiplication of 1 or 2 digit numbers that were produced randomly on the CRT. Subjects peoformed two types of a numeric operation, which easy and difficult work produced 400 and 600 problems within a 40 minute work session, respectively. Subjects were tested over two workdays according to the type of work(easy and difficult) consisting of four 40 minutes work sessions in the morning. Each work lasted for five minutes with a ten minutes rest break. 117 fuzzy inference rules were obtained from the experimental data. The value of consequent part was obtained by a descent method. The difference between real human error and estimated value of fuzzy inference was $1.8075{\pm}1.8591%(M{\pm}SD)$. The difference in easy and diffcult works were $2.69{\pm}2.13%$ and $0.92{\pm}0.93%$, respectively.

• 한방비만학회지
• /
• 제17권1호
• /
• pp.54-60
• /
• 2017

비만을 주소증으로 내원하여 LFT를 시행하고, 한약 치료를 포함한 비만 치료 경과 후 다시 추적한 결과 체중 감량과 간효소 수치의 개선 경향을 보인 10예를 보고하였다. 본 연구를 토대로 한약 치료를 포함한 한방 비만치료 시 유효성과 안전성에 대한 근거를 더 확보해나갈 수 있을 것으로 생각된다.

• 한국식생활문화학회지
• /
• 제10권5호
• /
• pp.449-455
• /
• 1995

This study was undertaken to investigate dietary status, food habits, and nutritional knowledge of university students majoring in judo (n=239) and to evaluate the effect of dietary behavior on their athletic activities. Mean daily dietary intakes (3,854.0 kcal) were similar to mean daily energy consumptions (3,975.5 kcal). Average daily intakes of most vitamins and minerals were higher than Korean Recommended Dietary Allowances except for the intake of vitamin A. Self-confidence on judo affected dietary behavior of the subjects: Subjects who had more self-confidence on judo showed more interest in good nutrition and concerned more about foods which could promote their athletic activities. Many side effects were manifested after sudden weight control for judo competition during school days. Therefore, it is suggested that good education on nutrition is necessary not only for athletic students, but also for coaches and trainers of the students. Ten weeks of education on nutrition significantly improved both food habits and nutritional knowledge of the subjects. Food habits were positively correlated with self-confidence on judo. Therefore, it is suggested that improvement of food habits through good education on nutrition would be helpful to improve athletic activities of the students.

• 성인간호학회지
• /
• 제24권5호
• /
• pp.489-498
• /
• 2012

Purpose: The purpose of the study was to identify reports of workplace violence, stress and turnover intention among perioperative nurses. Methods: The data were collected using questionnaire from 162 perioperative. Results: All of the nurses in the study reported incidents of violence within six months of the study. Doctors and specifically operating surgeons were cited as perpetrating workplace violence. The stated source of the violence was failure or shortage of surgical equipment or instrument and fall out of surgeon's preference. Subjects reported (87.7%) workplace abuse from nurses and most often from senior nurses. Nurse abuse was in the form of verbal abuse. Fatigue and stress stemming from heavy workload were cited as the source of the workplace violence. The subjects reported stress levels of 7.39 out of a possible ten points from workplace violence. A little more than thirty five percent of the subjects reported having intentions to leave because of workplace violence. These nurses reported higher level of stress and experienced more workplace violence from nurses and doctors as compared to those nurses who reported no turnover intention. Conclusion: The results of this study indicate that a third of the employed nurses reported wanting to leave their positions due to workplace violence. Workplace violence is a serious problem for nurses whether it is from physicians or from other nurses.

• The Journal of Korean Physical Therapy
• /
• 제27권2호
• /
• pp.81-84
• /
• 2015

Purpose: The purpose of this study was to compare the effect of 'knowledge of result' and 'knowledge of performance', two types of extrinsic feedbacks, during the sit-to-stand movement in children with hemiplegic cerebral palsy. Methods: A total of ten children with hemiplegic cerebral palsy (ages 8 to 12 years) were recruited for the study. Subjects with hemiplegic cerebral palsy performed sit-to-stand movement in front of a mirror. Their performance was supervised and revised for normal movement by a pediatric physiotherapist. In the knowledge of the result, subjects performed sit-to-stand using a chair with an armrest in their mind with normal movement. In the knowledge of performance, subjects performed sit-to-stand under verbal instructions. Randomized cross over trials were used in this study. Main outcome measurements were as follows: mediolateral speed, anteroposterior speed, velocity moment, extent in mediolateral direction, extent in anteroposterior direction, and vertical distance of the center of pressure. Results: The mediolateral speed and extent of center of pressure was higher for 'knowledge of performance' in comparison with the other type of extrinsic feedbacks (p<0.05). The other parameters, including anteroposterior speed and extent, and vertical speed of the center of pressure, did not differ between the two types of extrinsic feedbacks (p>0.05). Conclusion: These findings suggested that training in sit-to-stand movement with 'knowledge of result' may result in better use of extrinsic feedback.

• 대한물리치료과학회지
• /
• 제27권2호
• /
• pp.1-12
• /
• 2020

Background: The purpose of this study is intended to evaluate the effectiveness and analyse the change on balance, gait and ADL of the stroke patient by obstacle gait training. Design: Randomized controlled trial. Methods: Ten subjects with stroke patient are recruited from C rehablitation hospital located Chungbuck. The subjects which are divided to 2 group as experimental group (N=5) conducted the obstacle gait training and control group (N=5) conducted the general gait training. The gait (10mWT), balance (BBS) and ADL (FIM) were measured before and after intervention. Results: There were no significant differences (p>.05) in sex, age, height, weight and K-MMSE among subjects. There were significant differences (p<.05) in balance and gait between of the experimental group and control group. But there was no significant difference (p>.05) in the ADL between of the experimental group and control group. There were significant differences (p<.05) gait and balance in the experimental group. But there were no significant difference (p>.05) gait, balance and ADL in the control group. Conclusion: Obstacle gait training showed positive effects on the gait, balance of the stroke patient.

• Journal of Information Science Theory and Practice
• /
• 제2권3호
• /
• pp.6-17
• /
• 2014

The purpose of this study is to examine to what extent the context in which people interact with online information affects people's credibility perceptions. In this study, credibility assessment is defined as perceptions of credibility relying on individuals' expertise and knowledge. Context has been characterized with respect to three aspects: Context as user goals and intentions, context as topicality of information, and context as information activities. The data were collected from two empirical studies. Study 1 was a diary study in which 333 residents in Michigan, U.S.A. submitted 2,471 diary entries to report their trust perceptions associated with ten different user goals and nine different intentions. Study 2 was a lab-based study in which 64 subjects participated in performing four search tasks in two different information activity conditions - information search or content creation. There are three major findings of this study: (1) Score-based trust perceptions provided limited views of people's credibility perceptions because respondents tended to score trust ratings consistently high across various user goals and intentions; (2) The topicality of information mattered more when study subjects assessed the credibility of user generated content (UGC) than with traditional media content (TMC); (3) Subjects of this study exerted more effort into making credibility judgments when they engaged in searching activities than in content creation. These findings indicate that credibility assessment can or should be seen as a process-oriented notion incorporating various information use contexts beyond simple rating-based evaluation. The theoretical contributions for information scientists and practical implications for web designers are also discussed.

• The Journal of Korean Physical Therapy
• /
• 제12권1호
• /
• pp.9-13
• /
• 2000

The purpose of this study was to determine the overflow effect and cross training effect of isometric quadriceps training that performed in specific angle of unilateral let. Ten healthy students with an average age of 24 years$(24.1\pm1.3)$, were participated in this study. Then 5 subjects in each group were chosen at random to train using only right quadriceps muscle two time per day(group 2), five times a week and the other 5 subjects(group 1) were chosen to train one times per day, five times a week for 2 weeks at only 50 degrees (contract 6 seconds, rest 10 seconds, 3 sets). Before and after the training, isometric quadriceps muscle testing of the both leg was Performed at three different angles, 60, 50 and 40 degrees respectively by BHN-COM (isokinetic dynamometer) in sitting position. The data was analyzed with paired t-test to determine significant difference between before and after training. In this study, we have found that the isometric quadriceps muscle training on specific angle of right side produced overflow effect In healthy subjects. However, increasing the peak torque of specific angle(training angle) of trained limb did not have an effect on increasing the peak torque of contralateral limb. These results demonstrate that the cross training effect did nut found in this study but a alight increase of peak torque of the untrained limb would recognized the possibility of cross training effect.

• 한국조경학회지
• /
• 제26권4호
• /
• pp.14-24
• /
• 1999

The objective of this study is to test the influence of the landscape meaning illustrated to subjects on their landscape preference and to investigate the difference of the response(Influence Value;IV) between cultural landscape and natural landscape. For this, color-slide surrogates for cultural and natural landscape are shown to Experimental Group(EG) and Control Group(CG)(between-subject design). And Experimental Group is divided into meaning illustrated Before and After Group(within-subject design). For given 45 slide scenes of cultural and natural landscape, the subjects were asked to measure their preference on ten point scale. The results are as follows; 1. The influence of value illustration is positive in the preference. Specifically, this effect was more powerful for the low beauty landscape than for the high beauty landscape. 2. The relation between the IV and the preference of non illustrated group was deeply correlated. And IV of cultural landscape was higher than that of natural landscape. 3. It is identified that the meaning illustration about high naturalness landscape such as the swamp and alpine landscape is more effective than other natural landscape. 4. Also, the preference was more influenced by the personal task associated with landscape experience. But the statistical significance between the preference and experience about landscape didn't exist. Accordingly, it was suggested by this study that the illustrated meanings of landscape and perceived landscape form were also major influential factors on the landscape preference.

• 한국운동역학회지
• /
• 제23권2호
• /
• pp.141-148
• /
• 2013

The purpose of this study was to investigate the scapulothoracic joint movement between different weight bearing contributing to effective bench press exercise. Ten male subjects participated in this study. All subjects were tested on the flat bench press machine which modified weight (50% and 70% of 1RM) and subjects were performed two different conditions(none protraction condition and protraction condition). Weight bar height and vertical velocity, EMG activation was measured using 3D motion capture system and wireless EMG analysis system. As the results, none protraction condition showed that it is more concentrate better pectoralis major muscle activation than protraction condition and middle pectoralis major, anterior deltoid and triceps brachii was significant higher integrated EMG in 70% of 1RM condition. In conclusion, limited scapulothoracic joint movement was more effective activated pectoralis major muscle all the weight through, while we could not find that it was not affected integrated EMG on eight muslces related to shoulder complex between scapulothracic joint movement conditions.