• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.22 no.1
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• pp.27-34
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• 2016

Background: The purpose of this study was to investigate the immediate effects of neuro-dynamics technique (NDT) to the balance and gait for chronic stroke patients. Methods: This study was composed of the cross-sectional design. Nine patients with chronic stroke applied to NDT. Balance ability function was measured using the Good Balance System device for static balance, timed up and go test (TUG) and functional reach test (FRT) for dynamic balance. The 10 meter walk test (10MWT) and GAITRite device were used for measurement of gait ability for patients. Results: There were significant improvements were observed on dynamic balance ability (p<.05) and gait ability function (p<.05). Conclusions: This research shows that the NDT is immediate effective on dynamic balance and gait ability of the chronic stroke patients. Further studies may be needed to continuously intervention of NDT for more patients.

• Journal of the Korean Solar Energy Society
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• v.32 no.3
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• pp.19-25
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• 2012

About supply and demand to see that you need to match, the limitations of wind power capacity is low demand and the commitment of the general generator will exist between the minimum generation. if the turbine's output can be controlled, The limitation of wind power capacity will be adopted based on instant power generation. Namely, The minimum limits of wind power generation based load operation by calculating the amount that is higher than if the output should be restricted to highest operation. in this paper, we committed to the demand for low enough that the combination of the general generator of wind power capacity to accommodate the operation of determining whether the limit is intended to. For this, power system analysis program PSS/E was used, Jeju system by implementing the model simulations were performed.

• The Journal of Korean Physical Therapy
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• v.24 no.1
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• pp.23-28
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• 2012

Purpose: The purpose of this study was to examine the difference between the faller and the non-faller in the test for balance and fear of falling. This was also done to determine whether the balance and the fear of falling are correlated in the elderly. Method: Forty eight subjects participated in this study, who attended the senior center in Daegu. Prior to the test, demographic data was collected. As for the balance test, Berg Balance Scale (BBS), Timed Up & Go (TUG), Short Physical Performance Battery (SPPB), Functional Reach Test (FRT), and One Leg Stance (OLS) were used. For measuring the fear of falling, Falls Efficacy Scale (FES) and Activities-specific Balance Confidence Scale (ABC) were used. Independent t-test and Pearson's correlation was performed using PASW 18.0 for windows. Result: All balance tests, except OLS, and fear of falling could discriminate between the faller and the non-faller. There existed a significant correlation between some balance test and fear of falling (r=0.64~0.86). Conclusion: The findings indicate that assessing the falling in the elderly, there needs to be a consideration of multiple aspects including the fear of falling and not only the balance test.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.2359-2373
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• 2008

In 1991, Korean government decided to establish the Inland Container Depot for activating transportation of rail freight container and encourage the effectiveness of intermodal transport system. Therefore, the Ui-Wang ICD has been built in Kyonggi province and began to operate in 1993. However, Despite of original purpose of the Inland Container Depot, rail freight volume at public CY(Container Yard) in Ui-Wang ICD has been recorded very low. This paper deals with the promotion strategy for rail transport in Ui-Wang ICD. The relationship of conflicts between the rail-oriented transporters and road-oriented transporters in Ui-Wang ICD have been found through the TOC thinking process and some solutions are suggested. Some undesirable effects in operation of Ui-Wang ICD are listed and current reality tree(CRT) has been established and future reality tree(FRT) which includes some injections to active the rail transport in ICD has been recommended based on CRT. In order to make good solutions the situation in Busan-jin station ICD known as similar to Ui-Wang ICD has been analyzed.

• PNF and Movement
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• v.8 no.1
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• pp.67-77
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• 2010

Purpose : The purpose of this study was to investigate the usefulness of clinical balance tests through the correlation of balance evaluation using by forceplate in elderly. Methods : Thirty nine healthy elderly subjects (14 males, 25 females) participated in the study. The subjects were evaluated with clinical balance tests [(Berg balance scale (BBS), Functional reach test (FRT), Tinetti's performance oriented mobility assessment (POMA), and one leg standing (OLS)]. Static balance evaluation was assessed by using forceplate. Center of pressure (COP) parameters were obtained using it as total path distance, total sway area, X mean frequency and Y mean frequency for 20 seconds in the following conditions: (1) comfortable standing with eyes opened and closed, (2) uncomfortable standing with eyes opened and closed. After static balance evaluation tested, dynamic balance evaluation was assessed. COP parameters were error distance and area during sine curve trace. COP parameters were movement time, error distance, and maintained time in the circle during COP movement task. Results : Clinical balance tests showed statistically significant correlation between static and dynamic balance evaluations. Among the clinical balance tests, the BBS, POMA, and OLS showed significant correlation with to assess the balance ability of elderly in clinical setting both evaluations. Conclusion : Clinical balance tests can be recommended in clinical setting because of low costs and simplicity.

• Proceedings of the Korea Contents Association Conference
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• 2012.05a
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• pp.181-182
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• 2012

본 연구는 뇌졸중으로 인한 성인 편마비 환자의 계단 높이에 따른 보행 훈련을 통하여 균형과 근활성도 변화를 분석하는데 목적이 있다. 뇌졸중으로 진단받은 편마비 환자 30명을 대상으로 5cm, 10cm, 15cm 높이의 계단 보행 훈련군으로 나누어 계단 보행 훈련을 실시하였으며, 임상적 균형능력 측정도구인 Berg Balance Scale(BBS), Timed up and go(TUG), Functional Reach Test(FRT)와 근활성도를 측정하였다. 연구결과 균형변화에서는 세 군간 계단 보행 훈련 전과 후의 균형 변화량이 통계학적으로 유의한 차이가 나타나지 않았으나(p>.05), 10cm 높이 계단 보행 훈련군에서 가장 큰 변화량을 보였다. 근활성도변화에서는 계단 오르기시 10cm 높이 계단 보행 훈련군에서 넙다리곧은근, 넙다리두갈래근, 장딴지근, 15cm 높이 계단 보행 훈련군에서 모든 근육들이 통계학적으로 유의한 차이를 보였으며(p<.05), 계단 내리기시 근활성도 변화에서는 5cm 높이계단 보행 훈련군에서 앞정강근와 장딴지근, 10cm 높이 계단 보행 훈련군에서 모든 근육들이, 15cm 높이 계단 보행 훈련군에서 넙다리두갈래근, 앞정강근, 장딴지근이 통계학으로 유의한 차이를 나타내었다(p<.05). 따라서, 높이에 따른 계단 보행 훈련은 편마비 환자의 임상적 균형 능력과 근활성도를 변화시키는데 영향을 줄 수 있으며, 특히 10cm 높이 계단 보행 훈련군에서는 다른 높이의 계단 보행 훈련군에서 보다 약간 상대적인 증가를 보였다.

• Research in Community and Public Health Nursing
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• v.20 no.1
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• pp.59-66
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• 2009

Purpose: The purpose of study was to test the effect of lower extremity muscle strengthening exercise using elastic resistance on balance on elderly women. Methods: Twenty four women who were over 65 years old were randomly assigned to either the experimental group that received the exercise programme (n=12) or to the control group (n=12) that continued normal activities except programme. Exercises included the following 7 different activities; chair squat, knee flection, extension, hip flection, extension, calf muscle raise, ankle dorsiflection. All the participants were subject to 3 tests, including One-Leg Standing Test, Functional Reaching Test, and Up & Go Test. The measurements were made before the excercise, 4 and 8 weeks after the exercise. The data were analyzed by using the two way repeated ANOVA. Results: The results were as follows; As compared with change of balance capacity between groups, a significant difference was shown in the up and go test (p<.05), but not in balance performance clinical test of OLST (p>.05) and FRT (p>.05). Conclusion: The lower extremity muscle strengthening exercise using elastic resistance for the elderly women had some positive effects on the balance. Therefore this intervention can be broadly applied to other elders for preventing falls.

• The Transactions of the Korean Institute of Electrical Engineers C
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• v.48 no.5
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• pp.373-378
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• 1999

In order to analyse the degradation mechanism of polymer materials for outdoor condition, FRP laminate was exposed to high temperature and ultraviolet rays. Then, thedegradation process was evaluated by comparing contact angle, surface potential decay, and polarity effect respectively. Especially, the analysis of surface degradation phenomena by corona charging method showed the exact correlation with the result of chemical properties. Therefore we can confirm that the application of corona charging method on the identification of degradation process is very useful. If this method is usedin degradation studies on the polymer surface, it will be more effective on the surface analysis of polymer insulators. With corona charging method and chemical spectrum analysis, it was possible concretely to define degradation process on the polymer surface exposed at the situation of different environmental conditions.

• The Journal of Korean Physical Therapy
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• v.31 no.4
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• pp.169-175
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• 2019

Purpose: This study examined the effects of a spiral elastic band for the walking function on patients with chronic stroke. Methods: Twenty one chronic stroke patients were recruited and divided randomly into the experimental group and control group. Both groups performed mat exercises and gait training three times a week for four weeks, and gait training was applied to the experimental group with additional spinal elastic bands. Results: The results of this research were as follows. The 10MWT measurements showed that the velocities within and between the groups decreased significantly, and the results of TUG showed significant decreases in velocities after the interventions in both the control group and experimental group. On the other hand, there were no significant differences between the control and experimental group. The FRT measurements showed significantly increased stride lengths within and between the groups. The measurements of the stride length, stride velocity, cadence, and step length showed significant improvement within the groups, but there was no significant difference between the groups. The measurement of stance showed that the non-paralytic patients had a significant increase in the rates within the groups and a significant difference was observed between the groups. Conclusion: Spiral elastic bands are an effective intervention method for rehabilitation programs to enhance the walking function in the clinical field. A treatment needs to be developed for patients with walking problems due to various disorders by investigating the action mechanism of spiral elastic bands.

• PNF and Movement
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• v.9 no.1
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• pp.1-9
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• 2011

Purpose : The purpose of this study is to analyze the effect of closed-chain exercise on weight supporting rate change within hemiplegic side and static dynamic balance ability in stroke patients. Methods : The subjects of the study were 13 hemiplegic patients who carried out closed-kinematic chain exercise program over 6 weeks. The exercises of the program are stand to sit with stall bar, stair-up & down by a hemiplegic leg and bridging exercise crossing the non-hemiplegic leg onto the hemiplegic leg. Each exercise was carried out over 3 sets of 10reps. Results : The results of this study were summarized as follows: 1. After intervention, there was a statistically significant change in the weight supporting rate within hemiplegic and non-hemiplegic side(P<0.05). 2. After intervention, there was a statistically significant change in the static balance(FICSIT-4) ability(P<0.05). 3. After intervention, there was a statistically significant change in the dynamic balance(FSST, TUG, FRT) ability(P<0.05). Conclusion : The results of the study suggests that closed-chain exercise program in stroke patients improves their weight supporting rate and enhance the static dynamic balance.