• The Journal of Korean Physical Therapy
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• 제20권1호
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• pp.41-47
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• 2008

Purpose: This study aimed to assess the effectiveness of gait training with the use of an electromechanical gait trainer with functional electrical stimulation (FES) for patients that had undergone subacute stroke. Methods: The study subjects included nine subacute stroke patients of the Korea National Rehabilitation Center in Seoul, Korea. Outcome was measured using the timed Up and Go test, Fugl-Meyer-L/E assesment, with determination of the comfortable maximal gait speed, composite spasticity score, functional ambulatory category and Berg balance scale. All measured scores were recorded before, during, and after rehabilitation and at an eight-week follow-up. Results: Patients who received electromechanical-assisted gait training in combination with FES after subacute stroke were more likely to achieve independent walking, functional activities, balance and gait speed. Conclusion: The outcome of our gait-training program demonstrates that it may be practical to integrate FES into electromechanical gait training without any adverse effects. However, further randomized controlled studies are needed to evaluate if patient outcome after combined training is superior to outcome after the use of electromechanical gait trainer treatment alone or conventional gait training alone.

• 한국환경과학회지
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• 제15권10호
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• pp.913-918
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• 2006

Despite the wide distribution of air pollutants, the concentrations of indoor air pollutants may be the dominant risk factor in personal exposure due to the fact that most people spend an average of 80% of their time in enclosed buildings. Researches for improvement of indoor air quality have been developed such as installation of air cleaning device, ventilation system, titanium dioxide$(TiO_2)$ coating and so on. However, it is difficult to evaluate the magnitude of improvement of indoor air quality in field study because indoor air quality can be affected by source generation, outdoor air level, ventilation, decay by reaction, temperature, humidity, mixing condition and so on. In this study, evaluation of reduction of formaldehyde and nitrogen dioxide emission rate in indoor environments by $TiO_2$ coating material was carried out using mass balance model in indoor environment. we proposed the evaluation method of magnitude of improvement in indoor air quality, considering outdoor level and ventilation. Since simple indoor concentration measurements could not properly evaluate the indoor air quality, outdoor level and ventilation should be considered when evaluate the indoor net quality.

• 한국직업건강간호학회지
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• 제27권4호
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• pp.191-202
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• 2018

Purpose: This study analyzes the relationship between work-life conflict and turnover intention among hospital nurses. Furthermore, it seeks to determine whether the relationship between the two varies depending on the shift work condition of the nurses. Methods: A total of 435 nurses working at five tertiary hospitals were included in the study. The questionnaire included items on turnover intentions, work-life conflicts, sociodemographic factors, working conditions, and internal and external resources. Results: The level of work-life conflict among shift work nurses was higher than that of non-shift work nurses. The turnover intention was also higher for shift work nurses than for non-shift work nurses. Results from the multivariate logistic regression analysis revealed that the work-life conflict of nurses had a positive relationship with turnover intention. The effect of work-life conflict on turnover intention was greater for shift work nurses than for non-shift work nurses. Conclusion: Work-life conflict had a greater impact on the turnover intention of hospital nurses working under shift work conditions. Based on this study's findings, it can be suggested that, in order to reduce high turnover intention, it will be necessary to make specific efforts to balance work-life conflict and improve working conditions.

• 한국직업건강간호학회지
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• 제31권4호
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• pp.187-197
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• 2022

Background: This study explores the pathways of nurse turnover in long-term care hospitals (LTCHs) and its underlying conditions in Korea. Although the factors of staying or leaving of nurses in LTCHs have been reported, few studies have examined the trajectory and conditions of nurses staying in and leaving LTCHs. Methods: A qualitative study design with a grounded theory approach was conducted. Data were collected in one-to-one interviews. Purposive and theoretical sampling led to the inclusion of 20 registered nurses from 15 LTCHs in South Korea. Results: Seeking work-life balance was the core category of the nurses' turnover pathway. The consequences of the nurses' turnover pathway were categorized into three groups: thriving, surviving, and leaving. Thriving nurses found meaning in their work, fostered good relationships, and saw opportunities for growth. Surviving nurses were enduring their jobs in LTCHs, having a work-life balance, and supportive nursing leaders. Leaving group nurses wished to leave LTCHs due to a lack of professional growth, unappealing work, continued conflict, and social stigma. Conclusion: This study provided the trajectory and conditions for nurses to enter, stay, move, or leave. Understanding the pathways for staying or leaving can be used as a strategy for successful retention of registered nurses in LTCHs.

• 한국산학기술학회논문지
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• 제12권12호
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• pp.5741-5747
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• 2011

본 논문은 뇌졸중 환자를 대상으로 그들의 균형능력을 평가하여 낙상의 위험을 예견하기 위하여 임상에서 가장 보편적으로 사용되고 있는 버그균형척도와 균형 및 평형능력을 평가하기 위하여 사용되는 Smart Balance Master System의 평형지수 사이의 상관관계를 알아보기 위함이었다. 22명의 만성 뇌졸중 환자가 본 연구에 참여하였다. 조용하고 잘 정돈된 치료실에서 대상자에게 버그균형척도와 Smart Balance Master System을 실시하였다. 연구결과 버그균형척도와 Smart Balance Master System의 평형지수는 중등도 이상의 유의한 상관관계를 보여주었다. 또한 Smart Balance Master System의 6가지 조건에서 모든 '눈 감고 지지면 동요 조건'에서 유의한 상관성이 없었으며, 다른 5가지 조건과는 중등도 이상의 유의한 상관성을 보여주었다. 뇌졸중 환자는 균형능력을 유지하기 위하여 시각에 대한 의존도가 높으며, 버그균형척도가 이런 부분을 적절히 평가하지 못하기 때문에 '눈 감고 지지면 동요 조건'과 유의한 상관성을 보여주지 못한 것으로 사료된다. 따라서 임상에서 뇌졸중 환자를 대상으로 그들의 낙상을 예견하기 위해서는 한 가지 이상의 임상 평가방법을 사용하여 감각기관의 모든 영향을 고려하는 것이 그들의 낙상 위험을 예견하는데 보다 적절하고 효율적인 방법으로 사료된다.

• 재활치료과학
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• 제9권3호
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• pp.63-75
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• 2020

목적 : 본 연구는 Lee Silverman Voice Treatment-BIG(LSVT-BIG) 프로그램이 뇌졸중 환자의 작업수행과 운동기능에 미치는 변화를 알아보고 임상적용 가능성을 확인하고자 하였다. 연구방법 : 뇌졸중 환자 2명을 대상으로 LSVT-BIG 프로그램을 4주 동안 주 4일, 회당 1시간, 총 16회기를 실시하였다. 중재 전·후의 변화를 비교하기 위해 캐나다 작업수행 측정(COPM), Berg 균형 척도(BBS), Time Up and Go(TUG), 기능적 뻗기 검사(FRT), 뇌졸중 상지기능 검사(MFT)를 사용하여 측정하였다. 자료 분석은 중재 전·후의 점수 변화를 비교하였다. 결과 : 대상자 2명 모두 중재 전·후로 작업수행의 수행도 및 만족도는 증가하였다. TUG의 수행시간은 대상자마다 각 0.91, 8.42초로 감소하여 보행 속도가 증가하였다. FRT 거리변화에서 대상자는 환측과 건측 모두에서 증가를 보였고, BBS 점수는 대상자마다 각 3점, 6점 증가하였다. 또한 MFT 점수에서 대상자 A는 건측에서만 1점 향상을 보였고, 대상자 B는 건측에서 1점, 환측에서 3점 향상된 점수를 보였다. 결론 : LSVT-BIG 프로그램이 뇌졸중 환자의 새로운 중재기법으로써의 임상적용 가능성을 확인하였다. 향후에는 LSVT-BIG 프로그램 효과에 대한 보완 연구가 필요할 것이다.

• 한국전문물리치료학회지
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• 제14권3호
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• pp.64-71
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• 2007

The purposes of this study were to determine correlations between the Berg Balance Test (BBS), Timed -UP & Go Test, Fugl Meyer-L/E, Balance, Sensory (FM-L/E, B, S), Motor Assessment Scale-Gait (MAS-G), Comfortable maximal Gait Speed (C MGS), and the Modified Barthel Index (MBI). The subjects were 40 stroke patients of the Korea National Rehabilitation Center in Seoul. Main outcome measures were Balance control (BBS, FM-B), Gait (TUG, C MGS, MAS-G), ADL (MBI) and Motor Function of Lower Extremities (FM-L/E, S). The data were analyzed using Pearson product correlation. FM scales between other clinical and instrumental indexes and multiple stepwise regression analyses were performed to identify prognostic factors for Balance, Gait and ADL Motor Function of Lower Extremity inclinations. The results of this study were as follows: The BBS, FM-L/E, balance, sensory and MBI showed positive correlation relations, but TUG and C MGS showed negative correlations. The sensory factor of the FM-scale showed the strongest variance in predicting BBS. However the FM-balance showed the strongest variance in predicting TUG, MAS-G and C MGS. The use of both quantitative and qualitative scales was shown to be a good measuring instrument for the classification of the general clinical performance of the patients.

• 한국산학기술학회논문지
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• 제12권9호
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• pp.4008-4014
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• 2011

이 연구는 뇌졸중 환자를 대상으로 임상척도를 이용하여 엉덩관절의 근력, 감각과 경직이 균형능력에 미치는 영향을 알아보기 위해 실시되었다. 32명의 뇌졸중 환자를 대상으로 도수근력검사를 사용하여 환측 다리의 가벼운 접촉감각과 엉덩관절굽힘근, 폄근, 모음근, 그리고 벌림근의 근력을 측정하였고, 수정 Ashworth 척도를 이용하여 넙다리근의 경직을 측정하였으며, 기능적 균형 척도를 이용하여 정적 및 동적균형능력을 측정하였다. 수집된 자료는 다중회귀분석을 이용하여 분석하였다. 연구결과 정적균형에 유의한 영향을 미치는 요인은 엉덩관절벌림근력, 넙다리 경직, 가벼운 접촉감각인 것으로 나타났으며(p<0.05), 설명력은 80.5%인 것으로 나타났다. 동적균형능력에 영향을 미치는 요인으로는 엉덩관절벌림근력과 가벼운 접촉감각인 것으로 나타났으며(p<0.05), 설명력은 77.9%인 것으로 나타났다. 엉덩관절벌림근력과 가벼운 접촉감각은 정적균형과 동적균형 모두에 영향을 미치는 것으로 나타나, 앞으로 균형에 대한 검사와 중재 프로그램 제공 시 엉덩관절벌림근력과 가벼운 접촉감각 요인을 고려하는 것이 필요할 것으로 여겨진다.

• Safety and Health at Work
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• 제9권4호
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• pp.421-426
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• 2018

Background: The purpose of this study was to investigate the effect of shift work on occupational safety in various industrial sectors. The study analyzes the effects of shift work on the health of workers by considering factors such as the workplace environment and welfare. Methods: Focusing on the $4^{th}$ Korean Working Conditions Survey, this study used an ordinary least-square multiple regression analysis. The dependent variable was the annual frequency of injuries reported by workers. Independent variables were categorized as demographic, shift work, workplace environment, and welfare variables. The analysis was conducted on two levels: 1) Shift work and nonshift work groups were compared, and 2) Shift work was compared with fixed and rotating shifts. Results: For the entire group, age, a low level of education, work hours, and daily and dispatch work negatively impacted the frequency of injuries. Shift work was negatively affected by workplace environment and welfare factors. In the shift group, the frequency of injuries was lower than that of regular workers, and the higher the autonomy in the choice of work hours, the lower the frequency of injuries. Furthermore, shift workers in Korea have more extended work hours (49.25 h/week) than other workers (46.34 h/week). Conclusion: Overall, welfare factors such as workplace satisfaction and worke-life balance reduced the frequency of injuries. The effect of shift work was limited, but it was confirmed that shift worker autonomy could reduce the frequency of injuries.

• Safety and Health at Work
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• 제12권2호
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• pp.154-166
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• 2021

Background: Occupational health and safety (OHS) is a significant interest of all governments to prevent workplace hazards. Although appropriate legislation and regulations are essentials for the protection of workers, they are solely not enough. Application of them in practice should be secured by an efficient inspection system. Fundamental components of an inspection system are inspectors and their audit tasks. Maintaining the fair balanced task assignment among inspectors strictly enhances the efficiency of the overall system. Methods: This study proposes a two-phased goal programming approach for OHS inspectors' task assignments and presents a case study. Results: The solution approach gives the balanced assignment of inspectors to the workplaces in different cities of the country in the planning period. The obtained schedule takes into account the distances covered by the work places and the number of the workplaces' employees to be audited and pays attention to the human factors by considering the preferences of the inspectors. The comparisons between the obtained optimal schedule and the implemented one that is produced manually show that the approach not only maintains the technical requirements of the problem, but also provides social and physical balance to the task assignment. Conclusion: Both the approach and the application study are expected to offer fruitful inspirations in the area of safety management and policy and they provide a good guide for social policy and organizational aspects in the field of OHS inspectors' task assignment.