• PNF and Movement
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• 제17권1호
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• pp.1-9
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• 2019

Purpose: This study investigates the effects of task-oriented training for a left trunk flexion pattern using real-time ultrasound imaging in a stroke patient with unilateral neglect symptoms. Methods: This study used the ABA experimental design, which is a single-subject research method among individual case research methods. For the ABA experimental design, changes in the degree of unilateral neglect, balance ability, and the thickness of the lateral abdominal muscle were visually analyzed during the baseline process, in the intervention period, and after the intervention. The experiments were performed 24 times in total for 8 times in each of the 3 periods. The unilateral neglect was measured using the Albert test, balance ability was measured using the Berg balance test, and the thickness of the lateral abdominal muscle was measured using ultrasound imaging. The subject was a 50-year-old male patient with unilateral neglect caused by right cerebral hemorrhage. He performed task-oriented training for a voluntary left trunk flexion pattern using real-time ultrasound imaging during the intervention period. Results: The result of comparing the data collected during the intervention period with the data point average of the baseline process showed that balance ability improved and the tendency line was above the baseline. The tendency line of unilateral neglect was below the baseline and showed a decreasing tendency. The thickness of the lateral abdominal muscle showed an increasing trend and the tendency line was above the baseline. Conclusion: The results of this study suggest that the task-oriented training for left trunk flexion pattern using real-time ultrasound imaging has a beneficial effect on balance ability, the degree of unilateral neglect, and the strength of the lateral abdominal muscle in unilateral neglect patients.

• Physical Therapy Rehabilitation Science
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• 제1권1호
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• pp.33-39
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• 2012

Objective: The objective of this study is to investigate the effect of treadmill training with real optic flow scene on functional recovery of balance and balance self-efficacy in stroke patients. Design: Single blind, Randomized controlled trial. Methods: Nine patients following stroke were divided randomly into the treadmill with optic flow group (n=3), treadmill with virtual reality group (n=3), and control group (n=3). Subjects in the treadmill with optic flow group wore a head-mounted display in order to receive a speed modulated real optic flow scene during treadmill training for 30 minutes, while those in the treadmill with virtual reality group and control group received treadmill training with virtual reality and regular therapy for the same amount of time, five times per week for a period of three weeks. Timed up and go test (TUG) and activities-specific balance confidence scale (ABC scale) were evaluated before and after the intervention. Results: TUG in the treadmill training with optic flow group showed significantly greater improvement, compared with the treadmill training with virtual reality group and control group (p<0.05). Significantly greater improvement in the ABC scale was observed in the treadmill training with optic flow group and the tread mill training with virtual reality group, compared with the control group (p<0.05). Conclusions: Findings of this study demonstrate that treadmill training with real optic flow scene can be helpful in improving balance and balance self-efficacy of patients with chronic stroke and may be used as a practical adjunct to routine rehabilitation therapy.

• 대한통합의학회지
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• 제9권1호
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• pp.41-48
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• 2021

Purpose : The purpose of this study is to find out if it helps to improve static balance ability and weight bearing rate for chronic stroke patients with poor balance in clinical intervention through a method of correcting movement errors while performing a task by vibrotactile bio-feedback providing pressure information. Methods : Fifteen chronic stroke patients (12 male and 3 female) were participated in this study. To examine the effects of vibrotactile bio-feedback and general standing without bio-feedback on static balance ability and weight distribution symmetric index in all subjects randomized with R Studio. The static balance ability and weight distribution symmetric index of the participants was evaluated using a force plate. A paired t-test was used for comparison of each conditions. Statistical significance was set at α=0.05. Results : The comparisons of static balance ability and weight distribution symmetric index in chronic stroke patients after two different condition are as follows. In the static balance ability and weight distribution symmetric index, the vibrotactile feedback providing pressure information showed a significant difference compared to none feedback (p<.001). Conclusion : The vibrotactile bio-feedback providing pressure information in real time can support an improve in static balance ability, uniform weight bearing rehabilitation in chronic stroke patients. In the future, it is hoped that a follow-up study that provides a better direction of intervention compared to various feedback interventions commonly used in clinical practice.

• 한국경제지리학회지
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• 제15권4호
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• pp.534-549
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• 2012

본 연구는 2011년 가계금융조사 자료를 이용하여 주택자산이 자산 감축기에 진입한 60세 이상 고령자가구의 재정수지에 미치는 영향을 순서화된 로짓모형으로 분석하였다. 인적 사회적 특성 변수들 중에 연령, 임금근로자, 고졸이상의 학력, 수익성을 선호하는 금융투자성향 등의 변수들은 가구의 재정수지에 정(+)의 효과를 미치지만 가구원수, 미은퇴가구의 은퇴준비가 부족한 경우 등은 부정적인 영향을 미쳤다. 주거특성 변수에서는 아파트와 수도권 거주가 부정적인 영향을 미치는 한편, 주택자산을 소유하는 것은 긍정적인 영향을 미쳐 주거비용이 가계수지에 영향을 미치고 있음을 보여주고 있다. 경제적 능력과 재무특성 변수들 중에 경상소득, 금융자산의 비중은 긍정적인 영향을 미치지만, 금융부채와 소득과의 관계를 나타내는 DSR은 가구의 재정수지를 악화시키고 있는 것으로 나타났다. 총자산에서 주택자산이 차지하는 비중은 부정적인 영향을 미치는 것으로 나타나 주택소유와 상반된 결과를 보여주고 있다. 이는 주택이 가지는 소비재와 투자재의 양면성에서 비롯되는 것으로 보인다. 주택이외 기타 부동산의 경우 총자산에서 차지하는 비중은 물론 소유자체도 가계수지에 부정적인 영향을 미치고 있다. 주택자산 소유가구와 기타부동산자산 소유가구 모두 자산대비 금융부채비율이 가계수지를 악화시키는 것으로 나타나 대출을 이용한 부동산구입은 가계를 위험에 빠뜨릴 수 있다는 것을 시사하고 있다.

• 한국항만경제학회지
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• 제27권3호
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• pp.1-12
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• 2011

본 논문은 금융위기 이후 대중 수출증가가 경기회복에 주도적 역할을 하고, 우리경제의 중국경제 의존도가 크게 상승하는 상황에서 J-curve 효과가 우리나라 대중국 항만 수출입 흐름에 적용되는가를 월별자료를 이용하여 2000년부터 2010년까지의 기간에 대해 실증분석 하였다. 오차수정모형을 추정한 결과 단기적인 조정역할은 실질실효환율이 수행하는 것으로 나타났으며, 분산분해 결과 대중국 항만 무역수지에 대한 영향력이 국내경기보다 실질실효 환율과 세계경기가 더 크게 나타남을 알 수 있었다. 이와 더불어 수준변수로 구성된 VAR과 오차수정항을 포함한 VECM을 이용한 충격반응 분석을 실시한 결과 대중국 항만 무역수지는 환율 충격에 대하여 시차를 두고 반응을 보이는 것으로 나타나 J-curve 효과가 존재함을 알 수 있었다.

• 대한정형도수물리치료학회지
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• 제27권3호
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• pp.89-98
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• 2021

Purpose: The purpose of this study was to determine the effects of electromyography (EMG)-biofeedback based closed kinetic chain exercise (CKCE) on quadriceps muscle activity and dynamic balance ability in patellofemoral pain syndrome (PFPS). Methods: Thirty subjects with PFPS were included and they were divided into EMG-biofeedback using CKCE (Group I) and squat exercise using CKCE (Group II), each group consisted of 15 patients. Group I and Group II was performed by the patients for three times a week, for six weeks. sEMG was used to measure quadriceps muscle activity and star excursion balance test (SEBT) was used to measure dynamic balance ability. Results: According to the results of the comparisons between the groups, after intervention, quadriceps muscle activity and dynamic balance ability were significantly higher in Group I than in the Group II. Conclusion: Findings of this study suggest that EMG-biofeedback using CKCE that provides real-time biofeedback information on muscle contraction may have a beneficial effect on selective muscle strength of vastus medialis oblique muscle and dynamic balance ability in PFPS.

• 대한통합의학회지
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• 제6권2호
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• pp.1-16
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• 2018

Purpose : This meta-analysis was aimed at guiding future research in stroke treatment and to provide real-world data relating to the effects of aquatic exercise therapy on balance in patients with chronic stroke. Methods : We performed a meta-analysis comprising 22 studies involving aquatic exercise therapy performed between 2006 and 2017. A meta-analysis software program was used to calculate the mean effect size, effect size by intervention, and effect size by outcome. We also performed a meta-regression analysis and an analysis of publishing bias. Results : The mean effect size was 0.563. The effect size by outcome was observed to be the largest for the functional reach test, followed by the Berg balance scale, balance equipment, the Timed Up and Go test and one leg standing. Meta-regression analysis showed that effect size increased with an increase in the duration, number, length of exercise session. Conclusion : Aquatic exercise therapy appears to show a moderate effect on balance in patients with chronic stroke. A meta-analysis is warranted for further research to determine the effects of aquatic exercise on walking, muscle strength, and range of motion.

• 국제지역연구
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• 제14권1호
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• pp.3-29
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• 2010

본 논문의 목적은 해외에서 발생하는 화폐교란과 실물교란이 중간재를 수입하는 소국경제에 어떤 영향을 미치는지 알아보고, 또한 소국에서의 물가상승에 대한 명목임금연동정도가 해외경제교란이 소국경제에 전파되는 과정에 어떤 영향을 미치는지 알아보는데 있다. 이를 위해 본 논문에서는 변동환율제 하에서 자본이동이 완전하며, 합리적 기대가정 하에서 2국 2재화 모형을 채택하였다. 본 논문의 분석결과에 의하면 해외에서 발생하는 화폐교란과 실물교란은 가격효과, 해외승수효과, 자본이동을 통한 이자효과, 물가와 환율변동에 의한 상대가격효과, 그리고 실질잔고효과를 통하여 소국경제에 영향을 미치는 것으로 나타났다. 본 논문에서는 한국과 미국의 통계자료를 사용하여 실증분석을 하였다. 이를 통해 미국에서 발생하는 화폐교란과 실물교란이 한국경제에 어떤 영향을 미치는지, 그리고 한국에서의 임금연동지수가 미국에서 발생하는 경제교란이 한국경제에 전파되는 과정에 어떤 영향을 미치는지 알아보았다.

• 응용통계연구
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• 제14권2호
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• pp.273-287
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• 2001

90년대 말 이후 우리나라가 극심한 경제 불황을 겪으면서 구조조정을 c통한 시장기능의 회복에 관심이 집중되고 있다. Pigou에 의하면 소비함수를 통한 실질자산효과로 불황하에도 시장의 가격기구를 통해 장기균형에 달성이 가능하다는 것이다. 본 논문은 이와 같이 실질자산효과를 Phillips-Hansen의 FM-OLS 공적분추정으로 실증분석을 수행하였는데 분석결과에 의하면 우리나라의 경우 Pigou가 주장한 실질자산효과가 거의 없는 것으로 나타나 실질자산효과가 정책적으로 고려의 대상이 되는지의 여부는 충분히 검토되어야 할 것이다. 더구나 실질자산효과의 크기는 물가의 신축성의 정도에 따라 달라지는데 우리나라의 경우 물가의 신축성에 많은 제약이 있기 때문에 현실적으로는 실질자산효과가 더욱 축소되어 나타날 것으로 보인다. 결과적으로 실질자산효과에 의한 소비증가가 IS곡선을 이동시킬 만큼 충분치 못할 것으로 판단된다.

• 한국컴퓨터정보학회논문지
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• 제20권11호
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• pp.135-142
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• 2015

This paper applied a VAR model to analyze the effects of RMB exchange rate brought to processing trade, non-processing trade and FDI. Then we can get the results that the appreciation of RMB could not solve the problem of US trade deficit. It is more likely that the appreciation just can transfer the trade imbalance to other country with US, which could not radically solve the economic problems of US. Also this paper find that the data of service trade is surplus while the main goods deficit was occur in advanced technology product, especially in the information & communications trade And US has real advantage in these industries, so the situation will be changed if US decreased the barrier in these industries. In that way, the imbalance situation should be greatly reduced.