• 제목/요약/키워드: Motor recovery

검색결과 359건 처리시간 0.027초

척수 손상 후 병변의 발달과 기능의 회복 (Lesion development and functional recovery after spinal cord injury)

  • 전경희;박래준
    • The Journal of Korean Physical Therapy
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    • 제14권4호
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    • pp.441-453
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    • 2002
  • The purpose of this study was to characterize lesion development, neural plasticity, and motor learing after spinal cord injury. Facilitatory intervention such as weight bearing and locomotor training after SCI may be more effective than compensatory strategies at inducing neuroplasticity and motor recovery. Minimal tissue sparing has a profound impact on segmental systems and recovery of function Spinal animal could functional locomotion when subjected to repetitive stimulation. task-specific learning of isolated lumbar spinal could improve motor performance more then other task learning.

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루프 전달 회복을 통한 이중 적분 모터의 무진동 제어 (Vibration-free Control of Double Integrator Typed Motor via Loop Transfer Recovery)

  • 서상민
    • 한국소음진동공학회논문집
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    • 제20권10호
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    • pp.900-906
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    • 2010
  • This note proposes vibration-free motor control through modified LQG/LTR methodology. A conventional LQG/LTR method is a design tool in the frequency domain. However, unlike the conventional one, the proposed one is a time response based design method. This feature is firstly designed by parameterized settling time control gain through the target loop design procedure and the feature is secondly realized by loop transfer recovery. In order to show convergence to the target loop transfer functions, asymptotic behaviors of the open and the closed loop transfer functions are shown. At the conclusion, it is verified that the proposed method is robustly stable to parametric uncertainties through ${\mu}$-plot.

뇌가소성과 뇌졸중 재활 (Brain Plasticity and Stroke Rehabilitation)

  • 김식현
    • PNF and Movement
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    • 제6권2호
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    • pp.39-50
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    • 2008
  • Purpose : This article reviewed the advances in the understanding of the effect of motor rehabilitation and brain plasticity on functional recovery after CNS damage. Methods : This is literature study with Pubmed, Medline and Science journal. Results : The inability of CNS neurons to regenerate is largely associated with nonneuronal aspects of the CNS environment. Especially, this neuronal growth inhibition is mediated by myelin associated glycoprotein, olygodendrocyte-myelin glycoprotein, and NOGO. Enriched environment, motor learning, forced limb use have been utilized in scientific studies to promote functional reorganization and brain plasticity. Especially, enriched environment and motor enrichment may prime the brain to respond more adaptively to injury, in part by expressed neurotrophic factors. Conclusions : These reviews suggest that activity-induced neural plasticity occur in damaged brain areas in order to functional reorganization, where it could contribute to motor recovery, and represent a target for stroke rehabilitation.

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Effects of High-Intensity Interval Training on Motor Skills Recovery in Sciatic Nerve Crush-Induced Rats

  • Kim, Ki-Hyun;Shin, Hyung-Soo;Jung, Nam-Jin;Hwangbo, Gak
    • 대한물리의학회지
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    • 제15권1호
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    • pp.43-54
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    • 2020
  • PURPOSE: This study examined the effects of mild-intensity exercise (MIE) and high-intensity interval exercise (HIIE) on the recovery of the motor function over time in sciatic nerve crush injury rats. METHODS: The MIE group ran on a treadmill at a speed of 8.3 m/min to perform low-intensity training with maximum oxygen uptakes ranging from 40 to 50%. The HIIE group ran on the treadmill at a speed of 25 m/min to perform high-intensity training with a maximum oxygen uptake of 80%. The interval training was performed based on a 1:1 work-to-rest ratio. The effects of each form of exercise on the rats' walking abilities following their recovery from the peripheral nerve injuries were evaluated based on the results of behavior tests performed at one and 14 days. RESULTS: According to the test results, the MIE group showed significant improvements in the rats' ankle angle in the initial stance phase, and in the ankle and knee angles in the toe-off phase (p<.05). The HIIE group exhibited significant improvements in the ankle and knee angles in the initial stance phase, SFI(p<.05). CONCLUSION: The state of such patients can be improved by applying the results of this study in that MIE and HIIE on a treadmill can contribute to the recovery of the peripheral nerve and motor skill. In particular, MIE is used as a walking functional training in the toe-off stance phase, while HIIE is suitable in the initial stance stage.

경두개 전침과 발효황금 병행 투여가 흰쥐의 허혈성 뇌세포 손상에 미치는 효과 (Combination of Transcranial Electro-Acupuncture and Fermented Scutellaria baicalensis Ameliorates Motor Recovery and Cortical Neural Excitability Following Focal Stroke in Rats)

  • 김민선;구호;최명애;문세진;양승범;김재효
    • Korean Journal of Acupuncture
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    • 제35권4호
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    • pp.187-202
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    • 2018
  • Objectives : Non-invasive transcranial electrical stimulation is one of therapeutic interventions to change in neural excitability of the cortex. Transcranial electro-acupuncture (TEA) can modulate brain functions through changes in cortical excitability as a model of non-invasive transcranial electrical stimulation. Some composites of fermented Scutellaria baicalenis (FSB) can activate intercellular signaling pathways for activation of brain-derived neurotrophic factor that is critical for formation of neural plasticity in stroke patients. This study was aimed at evaluation of combinatory treatment of TEA and FSB on behavior recovery and cortical neural excitability in rodent focal stroke model. Methods : Focal ischemic stroke was induced by photothrombotic injury to the motor cortex of adult rats. Application of TEA with 20 Hz and $200{\mu}A$ in combination with daily oral treatment of FBS was given to stroke animals for 3 weeks. Motor recovery was evaluated by rotating bean test and ladder working test. Electrical activity of cortical pyramidal neurons of stroke model was evaluated by using multi-channel extracellular recording technique and thallium autometallography. Results : Compared with control stroke group who did not receive any treatment, Combination of TEA and FSB treatment resulted in more rapid recovery of forelimb movement following focal stroke. This combination treatment also elicited increase in spontaneous firing rate of putative pyramidal neurons. Furthermore expression of metabolic marker for neural excitability was upregulated in peri-infract area under thallium autometallography. Conclusions : These results suggest that combination treatment of TEA and FSB can be a possible remedy for motor recovery in focal stroke.

중풍 환자의 상지마비에 대한 전침치료의 효과 (Effects of Electroacupuncture on the Hemiplegic Upper Extremity after Stroke)

  • 류순현;이경섭;김태경;최요섭;윤상필;장종철;문상관;고창남;조기호
    • 대한한의학회지
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    • 제23권2호
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    • pp.180-189
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    • 2002
  • Background and Purpose : The hemiplegic upper extremity is affected in many stroke patients, and recovery is often poor. The purpose of this study was to assess the efficacy of electroacupuncture (EA) in enhancing the upper extremity motor and functional recovery of ischemic stroke patients. Subjects and Methods : Forty ischemic stroke patients (the upper extremity Fugl-Meyer motor scale (FM) score lower than 46, lesion location within middle cerebral artery territory) within 2 weeks of stroke onset were randomly allocated to either an EA group that received EA treatment or a control group that received only routine ward care. The EA was applied at Quchi-Shousanli (LI11-LI10), Waiguan-Hegu (TE5-LI4) points on the hemiparetic side six times per week for 4 weeks. The frequency of stimulation was 25-50Hz and the intensity was set at a level sufficient to induce muscle contraction. EA treatment was given for 30 minutes and all patients of both groups received standard rehabilitation program. Outcomes were assessed, in a blind manner, before treatment began and at 4 weeks after treatment, with the FM, the Motor Power score (MP) for shoulder/elbow, and the subsection of the Modified Barthel Index (MBI) for drinking/feeding/dressing upper body/grooming. Results : These 2 groups had comparable clinical characteristics, lesion location, lesion size, and pretreatment impairment scores. By the end of treatment, the EA group showed significantly more improvement than the control group in the subsection of the FM for shoulder/elbow/coordination (6.4 vs. 3.7; P=0.047) and the MP for shoulder/elbow (5.3 vs. 3.3; P=0.008). The subsection scores of the MBI for drinking/feeding/dressing upper body/grooming were not significantly different between two groups. No adverse effects due to treatment were found Conclusion : These results suggest that EA enhances the upper extremity motor recovery of acute stroke patients. However, this study failed to demonstrate any significant functional benefit related with upper extremity. Future study should be carried out in a larger sample size and use the functional outcome measure that is more specific and sensitive to the upper extremity.

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Implementation of Under Voltage Load Shedding for Fault Induced Delayed Voltage Recovery Phenomenon Alleviation

  • Lee, Yun-Hwan;Park, Bo-Hyun;Oh, Seung-Chan;Lee, Byong-Jun;Shin, Jeong-Hoon;Kim, Tae-Kyun
    • Journal of Electrical Engineering and Technology
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    • 제9권2호
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    • pp.406-414
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    • 2014
  • Significant penetration of induction motor loads into residential neighborhood and commercial regions of local transmission systems at least partially determine a vulnerability to a fault induced delayed voltage recovery (FIDVR) event. Highly concentrated induction motor loads with constant torque could stall in response to low voltages associated with system faults. FIDVR is caused by wide spread stalling of small HVAC units (residential air conditioner) during transmission level faults. An under voltage load shedding scheme (UVLS) can be an effective component in a strategy to manage FIDVR risk and limit the any potential disturbance. Under Voltage Load Shedding take advantage of the plan to recovery the voltage of the system by shedding the load ways to alleviation FIDVR.

6-hydroxydopamine에 의한 운동손상 흰 쥐에서 전침이 GOT, GPT, LDH 활성도 및 기능회복에 미치는 영향 (Effects of Electroacupuncture on Activity of GOT, GPT, LDH and Functional Recovery in the Motor Injury Rats by the 6-hydroxydopamine)

  • 하미숙;노민희
    • 대한물리의학회지
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    • 제5권2호
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    • pp.265-272
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    • 2010
  • Purpose : This study was investigated the effect of electroacupuncture stimulation on the change of blood biochemical components in the rat spinal cord injury(SCI) damaged by the 6-hydroxydopamine. Methods : SCI model rats were damaged in L1-L2 injected with 6-hydroxydopamine. The thirty Sprague-Dawley adult male rats were randomly divided into normal group, control group and electroacupuncture group. Experimental groups were applied as electroacupuncture(Es-160, ITO, Japan) for 15minutes during the low frequency(2 Hz) stimulation to zusanli. The enzyme concentration levels analysis of the hematological changes were measured of Glutamate Oxaloacetate Transaminase(GOT), Glutamate Pyruvate Transaminase(GPT), Lactate dehydrogenase(LDH) and motor function recovery change was evaluated by the rota-rod test. Results : This study were as follow : The concentration of GOT, LDH in experimental group was lower than control group(p<.05). The experimental group showed increase of motor function recovery more in compared to control group(p<.05). Conclusion : The results of this study showed that electroacupuncture to zusanli point have an effect on functional recovery after the 6-hydroxydopamine induced SCI in rats.

시각무시가 편마비 환자의 운동 기능회복에 미치는 영향 (Effect of Visual neglect for hemiplegia to motor recovery)

  • 김용권
    • 대한물리치료과학회지
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    • 제10권1호
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    • pp.18-29
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    • 2003
  • The purpose of this study by examine the effect of visual neglect on hemiplegia motor recovery are showing trouble which can be raised by visual neglect and helping the patient's ADL and functional recovering. Among the patients who are being taken physical therapy in many other hospitals in Busan From February 1st 2002 to august 31st, we chose 20 patients as control group who did not have symptoms of visual neglect and 20 other patients who did have as case group. We used Albert's test and line bisection as visual neglect test, and MAS as motor recovery. The average age of the patient group is 51.55 and that of control is 44.9. The men's rate is higher than women' s in both groups. Although the rate of left hemiplegia is higher than right hemiplegia in case group, that of right hemiplegia is higher than left hemiplegia in control group. There is much lesion site of basal ganglia in case group. There is the most amount of transformation of MAS when visual neglect is shorter than 1.5centimeter. Each change of MAS point before and after therapy in case group and control group is revealed $6.5{\pm}4.37$ and $12.5{\pm}5.95$.

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Surgical versus Conservative Treatment for Lumbar Disc Herniation with Motor Weakness

  • Choi, Hong-Seok;Kwak, Kyung-Woo;Kim, Sang Woo;Ahn, Sang Ho
    • Journal of Korean Neurosurgical Society
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    • 제54권3호
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    • pp.183-188
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    • 2013
  • Objective : The aim of this study is to assess outcomes during first one year for patients with severe motor weakness caused by lumbar disc herniation that underwent surgical or nonsurgical treatment. Methods : The 46 patients with motor weakness because of lumbar disc herniation who were treated at neurosurgical department and rehabilitation in our hospital from 2006 to 2010, retrospectively. Each group had 26 surgical treatments and 20 conservative treatments. We followed up 1, 3, 6 months and 12 month and monitored a Visual Analogue rating Scale (VAS) of back and leg pain, Oswestry Disability Index (ODI) and degree of motor weakness. We analyzed the differences between surgical and nonsurgical groups using Mann-Whitney U test and repeat measure ANOVA in each follow-up periods. Results : In the recovery of motor weakness, surgical treatment uncovered a rapid functional recovery in the early periods (p=0.003) and no difference between groups at the end of follow-up period was found (p>0.05). In VAS of back and leg, the interaction between time and group was not found (p>0.05) and there was no difference between groups (p>0.05). In ODI, the interaction between time and group was not found (p>0.05) and there was no difference between groups (p>0.05). Conclusion : Surgical treatment for motor weakness caused by herniated intervertebral disc resulted in a rapid recovery in the short-term period, especially 1 month. We think early and proper surgical treatment in a case of motor weakness from disc herniation could be a good way for providing a chance for rapid alleviation.