• 제목/요약/키워드: Motor grade

검색결과 143건 처리시간 0.021초

0.75[kW]급 삼상유도전동기 효율의 불확도 평가에 관한 연구 (Study on the Evaluation of Uncertainty for the Efficiency of 0.75[kW] Class Three Phase Induction Motor)

  • 전희득;박한석;김대경;우경일
    • 전기학회논문지
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    • 제64권4호
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    • pp.653-659
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    • 2015
  • In the last few years, the regulations for efficiency grade of the three phase induction motor are internationally being discussed and upgraded for the protection of environment and energy saving. So the efficiency improvement and the reliable test result are essential to determine the premium grade three phase induction motor. While a study on developing the efficiency motor is active, there is little research about the guarantee for efficiency. So in this paper, the dispersion characteristic of the efficiency is studied using uncertainty theory for the three phase induction motor to improve the reliability of efficiency. The values such as input voltage, current, speed, torque were obtained by loss separation method to evaluate the uncertainty. From the result, it was known that the important loss factor could affect the uncertainty is the stray loss.

뇌졸중후 우울증의 정도와 운동기능의 회복과의 상관관계에 대한 연구 (The correlation between post-stroke depression and the recovery rate of motor functions)

  • 박세진;박상동;이정훈
    • 동의신경정신과학회지
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    • 제13권2호
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    • pp.101-106
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    • 2002
  • Objectives : The degree of post-stroke depression was observed and then correlated to the recovery rate of the motor functions of the above treated stroke patients. Methods : The BDI SCALE(Beck Depression Inventory Scale) and motor grades of 50 diagnosed stroke patients who were hospitalized in Dong-Seo Oriental Hospital between the period of May 2002 to September 2002 were measured. After a 1 month recovery period the BDI SCALE and motor grade of the above mentioned patients were again measured and a correlation was observed. Results : A lower BDI SCALE was observed in patients with a higher motor grade recovery rate. Conclusion : The treatment of post-stroke depression is imperative for positive effects on the motor functions of stroke patients.

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선택적 척수후근 절제술 후 물리치료의 효과 (The Effect of Physical Therapy after Selective Posterior Rhizotomy patients)

  • 허진강;박성학
    • 대한물리치료과학회지
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    • 제6권2호
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    • pp.989-995
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    • 1999
  • Musclee spasticity of Cerebral Palsy children brings abnormal posture and becomes delayed for Normal Motor Development. The objective of this study is to discover the effects of physical therapy on subject paitient' s posture and Normal Motor Development after Selective Posterior rhizotomy. The subject patients were 280 children who had physical therapy for about 4 to 6 months after Selective Posterior Rhizotomy. The sum of points both pre and post operation by using Locomotion stage of Vojta and Arens's grading of Gross Motor Function were compared and evaluated. Among total of 280 Cerebral Palsy children who had 4 to 6 months of physical therapy ; total of 206 children(197 by grade 1, 9 by grade 2) has increased out of 218 spasticity type children, and totoal of 42 has increased (by gradel) out of 48 Athetoid type, and total of 8 jas increased (by grade 1) out of 14 Mixed type Physical therapy for Cerebral Palsy children after Selective Posterior Rhizotomy has enhanced Normal Motor Development and their posture. The therapy also has shown the results of shortening the therapy period and better treatment results.

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아급성 기저핵 뇌졸중 후 편마비 환자의 보행양상의 변화 : 후향적 연구 (Changes in the Gait Pattern of Hemiparetic Patients with Subacute Basal Ganglia Stroke: a Retrospective Study)

  • 홍해진;김철현;성강경;이상관
    • 대한한방내과학회지
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    • 제37권6호
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    • pp.990-997
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    • 2016
  • Objectives: This study observed changes in gait pattern according to the motor grade of the paretic lower limb in patients with basal ganglia stroke who are in the subacute phase. Methods: We used the Manual Muscle Test (MMT) to evaluate the motor grade of the paretic lower limb of 21 patients with subacute basal ganglia stroke and then divided them into two groups based on the MMT results. Stroke patients with a motor grade above Gr. III were put in group I (15 people) and those with a grade less than Gr. III in group II (6 people). We also estimated spatiotemporal factors using treadmill gait analysis equipment. The values were gait velocity, step length, step time, double support phase, and cadence. The first measure was conducted during the early period of admission and the second was between four and five weeks after admission. Results: In Group I, the gait velocity and step length of both legs significantly increased. In Group II, the step length and step time of the paretic side and the gait velocity tended to decrease, but not significantly. The step length of the paretic side in Group II was significantly longer than that in Group I at the first measure. The step time of the paretic side in Group I was significantly shorter than that in Group II and gait velocity and cadence in Group I were significantly higher than in Group II at the second measure. Conclusions: The gait parameters of all stroke patients improved in terms of time. In addition, the changes in gait pattern were different depending on the motor grade of the paretic lower limb.

뇌졸중 후 편마비 환자의 보행능력 향상에 따른 질량중심 좌우이동의 변화 (The Change of Lateral Shift of Center of Pressure according to the Gait Improvement in Post-Stroke Hemiplegic Patients)

  • 이일석;박기언;홍해진;성강경;이상관
    • 대한한방내과학회지
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    • 제35권4호
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    • pp.448-454
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    • 2014
  • Objectives: The aim of this study was to analyze the change of lateral shift of Center of Pressure (CoP) according to the gait improvement in post-stroke hemiplegic patients and to investigate relationship between the change of motor grade and lateral shift of CoP. Methods: We measured the lateral shift of CoP and motor grade of eight post-stroke hemiplegic patients at the beginning of dependent gait and independent gait. Results: We found that CoP tended to be shifted to the non-affected side when patients started to walk independently. Furthermore, there was no relationship between the change of motor grade and lateral shift of CoP. Conclusions: This result may suggest it is more important to control the non-affected side than the affected side, at least until the beginning independent gait.

태음인(太陰人) 위완한병(胃脘寒病)으로 진단한 하지 부종 및 위약감을 호소하는 심부정맥혈전증 여환 1례 (A Case Report on Underlying Edema and Weakness by Deep Vein Thrombosis(DVT) Diagnosed with Taeumin Wiwanhanbyeong)

  • 오지원;강민수;양성필;김진영;이의주
    • 사상체질의학회지
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    • 제29권2호
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    • pp.202-209
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    • 2017
  • Objectives The purpose of this study is to investigate the effect of Choweseuncheng-tang on Underlying Edema and weakness by Deep Vein Thrombosis(DVT) in a 74-year-old female patient. Methods Patient was treated with Jowiseungcheong-tang. Patient's symptom was assessed NRS, Tape measurement, Motor grade. The treatment was executed three times everyday from May 19th to May 23th, 2017. Patient was observed from May, 18th to May, 23th. Results After 5 days of using Jowiseungcheng-tang, patient's edema symptoms and weakness were evaluated by NRS, Tape measurement, Motor grade. After the treatment, Tape measurement score decreased. The score of Motor grade increased. However, the score of NRS was nonsignificant. Conclusions The results suggest that Jowiseungcheng-tang can be a valuable option in treating Underlying Edema and weakness by DVT.

졸중풍(卒中風) 후유증(後遺症)에 의한 운동장애(運動障碍) 환자(患者)의 치료(治療)를 위한 통용방(通用方)으로서 만금탕(萬金湯)과 보양환오탕(補陽還五湯)의 효과(效果)에 관한 비교(比較) 연구(硏究) (Comparative Study of the Effect of Man Geum Tang and Bo Yang Whan O Tang as a General Prescription for the Treatment of Motor Disturbance in Sequelae of Cerebrovascular Disease)

  • 김동웅
    • 대한한의학회지
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    • 제15권2호
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    • pp.233-240
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    • 1994
  • Cerebrovascular disease(CVD) is marked by loss of consciousness. facial palsy and hemiparesis. Although being treated properly in acute stage. CVD is accompanied by various sequelae. So treatment of sequelas is great importance as much as in acute stage. Man Geum Tang(MGT) and Bo Yang Whan O Tang(BYWOT) are representative general prescription for sequelae of CVD. This study is to clarify comparatively the efficiency of MGT and BYWOT. 110 Patients who were administrated with either MGT or BYWOT over 2 weeks for treatment of CVD divided into 2 groups:53 patients(27 males and 26 fomales. average $63.58{\pm}9.48$ years old) adminstated with MGT and 57 patients (32 males and 25 females. average $65.84{\pm}8.93$ years old) with BYWOT. In the patients administrated with MGT. 15 patients were with cerebral hemorrhage and 38 patients were with cerebral infarction. 57 BYWOT group consisted of 27 patients with cerebral hemorrhage and 30 patients with cerebral infarction. MGT with cerebral hemorrhage and 30 patients with cerebral infarction. MGT was administrated for $15.18{\pm}2.43$days and BYWOT for $14.24{\pm}1.24days$. Motor improved significantly(9〈0.005) from grade after administration in upper and lower extremities respectively. In view of comparative effeciency. the grade of motor disturbance after administration in upper extremities showed insignificant(p〉0.005) change to $1.19{\pm}1.18\;and\;0.89{\pm}1.13$ in MGT and BYWOT group respectively. In lower extremities. the grade changed insignificantly (p〉0.05) to $1.26{\pm}1.08\;and\;1.18{\pm}1.10$ respectively. In the patients group with cerebral infarction. the grade of motor disturbance in MGT and BYWOT administration groups respectively were $0.84{\pm}0.14\;and\;0.60{\pm}0.15$ in upper exemities and $0.89{\pm}0.14\;and\;0.90{\pm}0.17$ in lower extremities. The significant difference between two groups didn't appeared. In cerebral hemorrhage patients the grade of motor disturbance were in upper extremities $2.07{\pm}0.33$ in MGT group and $1.59{\pm}0.29$ in BOWOT group and $2.20{\pm}0.26\;and\;1.59{\pm}0.28$ in lower extremities respectively. The difference between two groups were insignificant(p〉0.05).

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다리에 힘이 없는 환자에서 효과적인 운동 유발전위 파형 측정에 대한 고찰 (Effective Motor Evoked Potential Waveforms in Patients with Lower Extremity Weakness)

  • 임성혁;박상구;한형태
    • 대한임상검사과학회지
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    • 제48권1호
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    • pp.41-48
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    • 2016
  • Motor evoked potential of spinal surgery is known to cause damage due to the movement path of the continuous scan operation and surgery can be performed with minimized disability after surgery. However, if it is not at all formed at the wave motion evoked potential can occur during surgery and, in some cases the size of the waveform to be measured is very small and intermittent. In this case, the surgery cannot provide information about whether there is neurological damage. Increased intensity of the wave-induced motion of the dislocation does not occur if it appears in a very small amplitude stimulus, but changing the inspection area that electrical stimulation of the waveform changes could not be found. However, stimulation of a wide area in the cerebral cortex was found to occur with a waveform in the patients who underwent examination. Through this study, we propose a useful motor evoked potential test. From November to December 2015 three spine surgery patients visited Samsung Medical Center as neurosurgery patients with omission discomfort, gait disturbance, and no symptom of strength before surgery. In spine surgery patients with motor grade weakness, when motor evoked potential waveform has not been measured, in examination of the site of electrical stimulation of the cerebral cortex from entering the C3+C5/C4+C6 or C3+C1/C4+C2 if by the activity of more motor neuron unit, it was found that the waveform is better formed.

중풍 편마비 환자의 손 기능 회복에 대한 팔사혈(八邪穴) 자침(刺鍼)의 임상적 효과 (The Clinical Effectiveness of Acupuncture at Palsa(BaXie) for Hand Function in Hemiparetic Patients after Stroke)

  • 김자영;정선미;박찬규;민은경;왕덕중
    • Journal of Acupuncture Research
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    • 제25권5호
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    • pp.97-104
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    • 2008
  • Objectives : Investigate the effectiveness of an acupuncture at Palsa(BaXie) in hemiparetic patients after stroke. Methods : Acupuncture at Palsa(BaXie) applied to thirty one hemiparetic patients who had been by general treatment after stroke. The other thirty one hemiparetic patients had only general treatment. Outcomes were assessed by Medical research council scale motor grade(MRCSMG) of wrist, grip power, Fugl-Meyer Motor Scale(FMS) of hand, and Motricity Index(MI) of fingers. Results : The patients exhibited substantial improvements on grip power and Fugl-Meyer Motor Scale of hand, but Medical research council scale motor grade of wrist and Motricity Index of fingers have not significantly meaningful differences between sample and control group. Conclusions : Acupuncture at Palsa(BaXie) may be an effective method of improving hand function of hemiparetic patients after stroke.

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Successful Motor Evoked Potential Monitoring in Cervical Myelopathy : Related Factors and the Effect of Increased Stimulation Intensity

  • Shim, Hyok Ki;Lee, Jae Meen;Kim, Dong Hwan;Nam, Kyoung Hyup;Choi, Byung Kwan;Han, In Ho
    • Journal of Korean Neurosurgical Society
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    • 제64권1호
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    • pp.78-87
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    • 2021
  • Objective : Intraoperative neurophysiological monitoring (IONM) has been widely used during spine surgery to reduce or prevent neurologic deficits, however, its application to the surgical management for cervical myelopathy remains controversial. This study aimed to assess the success rate of IONM in patients with cervical myelopathy and to investigate the factors associated with successful baseline monitoring and the effect of increasing the stimulation intensity by focusing on motor evoked potentials (MEPs). Methods : The data of 88 patients who underwent surgery for cervical myelopathy with IONM between January 2016 and June 2018 were retrospectively reviewed. The success rate of baseline MEP monitoring at the initial stimulation of 400 V was investigated. In unmonitorable cases, the stimulation intensity was increased to 999 V, and the success rate final MEP monitoring was reinvestigated. In addition, factors related to the success rate of baseline MEP monitoring were investigated using independent t-test, Wilcoxon rank-sum test, chi-squared test, and Fisher's exact probability test for statistical analysis. The factors included age, sex, body mass index, diabetes mellitus, smoking history, symptom duration, Torg-Pavlov ratio, space available for the cord (SAC), cord compression ratio (CCR), intramedullary increased signal intensity (SI) on magnetic resonance imaging, SI length, SI ratio, the Medical Research Council (MRC) grade, the preoperative modified Nurick grade and Japanese Orthopedic Association (JOA) score. Results : The overall success rate for reliable MEP response was 52.3% after increasing the stimulation intensity. No complications were observed to be associated with increased intensity. The factors related to the success rate of final MEP monitoring were found to be SAC (p<0.001), CCR (p<0.001), MRC grade (p<0.001), preoperative modified Nurick grade (p<0.001), and JOA score (p<0.001). The cut-off score for successful MEP monitoring was 5.67 mm for SAC, 47.33% for the CCR, 3 points for MRC grade, 2 points for the modified Nurick grade, and 12 points for the JOA score. Conclusion : Increasing the stimulation intensity could significantly improve the success rate of baseline MEP monitoring for unmonitorable cases at the initial stimulation in cervical myelopathy. In particular, the SAC, CCR, MRC grade, preoperative Nurick grade and JOA score may be considered as the more important related factors associated with the success rate of MEP monitoring. Therefore, the degree of preoperative neurological functional deficits and the presence of spinal cord compression on imaging could be used as new detailed criteria for the application of IONM in patients with cervical myelopathy.