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Effects of Robot-assisted Therapy on Lower Limb in Patients with Subacute Stroke (아급성기 뇌졸중 환자에서의 로봇 보조 보행훈련 효과)

  • Kim, Ji Hee
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.17 no.7
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    • pp.459-466
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    • 2016
  • This study examined the effects of robot-assisted therapy on the motor and functional recovery of the lower limbs in 53 subacute stroke patients. Robot-assisted therapy was performed using Lokomat? (Hocoma AG, Zurich, Switzerland) for thirty minutes per day, five times a week for four weeks. The outcome measures used were the Fugl-Meyer assessment, Motricity index(MI), Functional ambulation category(FAC), Berg balance scale(BBS) for gait function and balance ability, 10m walking test, K-Modified Barthel Index(K-MBI) for the activities of daily living and Mini mental state examination (MMSE), and Beck's depression inventory(BDI) for depression. All patients recruited underwent these evaluations before and after the four week robot-assisted therapy. For the evaluation, the somatosensory evoked potentials were used to assess the functional recovery. Robot-assisted therapy on the lower limb after subacute stroke showed improvement in motor strength, gait function, and the activities of daily living. All changes in terms of MI, FAC, BBS, and K-MBI exhibited a statistically significant difference after the four weeks robot-assisted therapy. The somatosensory evoked potential result showed a correlation with the MI and K-MBI. Robot-assisted therapy is believed to facilitate the motor and functional recovery of the lower limb in subacute stroke patients.

Effects of Robot-assisted Therapy on Function of Upper Extremity in Stroke Patients (로봇보조(Robot-assisted) 치료가 뇌졸중 환자의 상지기능에 미치는 영향)

  • Hwang, Sun-Jung;Yoo, Doo-Han
    • The Journal of Korean society of community based occupational therapy
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    • v.3 no.1
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    • pp.33-42
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    • 2013
  • Objective : The purpose of this study is to assess effects of Robot-assisted therapy on function of upper extremity in stroke patients. Method : A total of 11 patients suffered from stroke participated in this study. Inpatients of 4 people and outpatients of 7 people divided by 12 months conducted Robot-assisted therapy for 5~6 weeks. Therapists selected appropriate exercise mode to patients, and patients Patients performed the reaching exercise was repeated with looking monitor provided 3-dimensional feedback. Before and after treatment of upper extremity functions was compare by Wolf Motor Function(K-WMFT), Box & Block Test(BBT), Dynamometer, average execution time. Result : Grip power, K-WMFT, BBT, average performance times were promoting in all subjects, and only showed statistically significant changes in outpatients. But outpatients did not show statistically significant changes in inpatients. Conclusion : Robotic-assisted therapy in stroke patients have a positive impact on upper extremity function that could confirm that. In the future, Robots-assisted therapy is expected to be useful for stroke patients in the area of occupational therapy.

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Effects of a Robot Pet-assisted Program for Elderly People with Dementia (치매노인에 대한 동물로봇 매개 중재 프로그램의 효과)

  • Song, Jung-Hee
    • Journal of Korean Academy of Nursing
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    • v.39 no.4
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    • pp.562-573
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    • 2009
  • Purpose: The purpose of this study was to identify the effects on the cognitive function, Activities of Daily Living (ADL), mood, social behaviors, and problematic behaviors of robot pet-assisted program for elderly people with dementia. Methods: This study was a nonequivalent control group pretest-posttest design. The participants were 32 elders with dementia. Seventeen were assigned to the experimental group and 15 to the control group. The intervention was conducted twicea week for 6 weeks. Results: 1) After the program, cognitive function, ADL, and social behaviors did not show significant differences. 2) After the program, mood of experimental group was significantly better than that of the control group. 3) After the program, problematic behaviors of the experimental group were significantly more diminished than those of control group. 4) As a result of analyzing the response, robot pet-assisted program was effective such as inducing a positive emotional state and increasing communication and interaction. Conclusion: The robot pet-assisted program was effective in changing the mood and diminishing problematic behaviors and had positive effects such as increasing communication and interaction for elders with dementia. Therefore, this program should be considered as a positive program for physical and emotional support for elders with dementia.

Silicon Nanostructures Fabricated by Metal-Assisted Chemical Etching of Silicon (MAC Etch를 이용한 Si 나노 구조 제조)

  • Oh, Ilwhan
    • Journal of the Korean Electrochemical Society
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    • v.16 no.1
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    • pp.1-8
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    • 2013
  • This review article summarizes metal-assisted chemical etching (MAC etch or MACE), an anisotropic etching method for Si, and describes principles, main factors, and recent achievements in literature. In 1990, it was discovered that, with metal catalyst on surface and $H_2O_2$/HF as etchant, Si substrate can be etched anisotropically, in even in solution. In contrast to high-cost vacuum-based dry etching methods, MAC etch enables to fabricate a variety of high aspect ratio nanostructures through wet etching process.

Acetate-assisted Synthesis of Chromium(III) Terephthalate and Its Gas Adsorption Properties

  • Zhou, Jing-Jing;Liu, Kai-Yu;Kong, Chun-Long;Chen, Liang
    • Bulletin of the Korean Chemical Society
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    • v.34 no.6
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    • pp.1625-1631
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    • 2013
  • We report a facile synthetic approach of high-quality chromium(III) terephthalate [MIL-101(Cr)] by acetate-assisted method in the absence of toxic HF. Results indicate that the morphology and surface area of the MIL-101(Cr) can be tuned by modifying the molar ratio of acetate/$Cr(NO_3)_3$. The Brunauer-Emmett-Teller (BET) surface area of MIL-101(Cr) synthesized at the optimized condition can exceed 3300 $m^2/g$. It is confirmed that acetate could promote the dissolution of di-carboxylic linker and accelerate the nucleation ratio. So the pure and small size of MIL-101(Cr) with clean pores can be obtained. $CO_2$, $CH_4$ and $N_2$ adsorption isotherms of the samples are studied at 298 K and 313 K. Compared with the traditional method, MIL-101(Cr) synthesized by acetate-assisted method possess enhanced $CO_2$ selective adsorption capacity. At 1.0 bar 298 K, it exhibits 47% enhanced $CO_2$ adsorption capacity. This may be attributed to the high surface area together with clean pores of MIL-101(Cr).

Mechanisms involved in modification of film structure and properties in ICP assisted dc and pulsed dc sputtering

  • Kusano, Eiji
    • Proceedings of the Korean Vacuum Society Conference
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    • 2015.08a
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    • pp.59.2-59.2
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    • 2015
  • Modification of film structure and properties in inductively-coupled plasma (ICP) assisted dc and pulsed dc sputtering has been reported by Oya and Kusano [1] and by Sakamoto, Kusano, and Matsuda [2], showing drastic changes in films structure and properties by the ICP assistance in particular to the pulsed dc discharge. Although mechanisms involved in the modification has been reported to be the increase in energy transferred to the substrate, details of effects of low-energy ion bombardment on the modification and origin of an anomalous increase in the ion quantity by the ICP assistance to the pulsed dc discharge have not been discussed. In this presentation, mechanisms involved in film structure and property modification in ICP assisted dc and pulsed dc sputtering, in which a number of low-energy ions are formed, will be discussed based on ion energy distribution as well as effectiveness of energy transfer to the substrate by low energy particles [3]. The results discussed in this presentation will emphasize the fact that the energetic particles playing an important role in the film structure modification are those to be deposited, but not those of inert gas, when their energies range in less than 100 eV in the pressure range of magnetron sputtering.

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Stent-Assisted Coil Embolization for the Proximal Middle Cerebral Artery Fusiform Aneurysm

  • Jeong, Seong-Man;Kang, Shin-Hyuk;Lee, Nam-Joon;Lim, Dong-Jun
    • Journal of Korean Neurosurgical Society
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    • v.47 no.5
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    • pp.406-408
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    • 2010
  • Middle cerebral artery (MCA) fusiform aneurysms often have an unfavorable geometry that may limit surgical or endovascular treatment. Herein, we present a case of a fusiform aneurysm of the proximal MCA, which was successfully treated using stent-assisted coil embolization. A 42-year-old man presented with repeated headache and syncope. Five years earlier, a right MCA aneurysm had been treated by aneurismal wrapping. Magnetic resonance images (MRI) revealed a partially-thrombosed proximal MCA aneurysm at the right perisylvian region. Digital subtraction angiography (DSA) revealed a multilobulated fusiform-shaped aneurysm. The patient underwent stent-assisted coil embolization under general anesthesia and symptoms resolved postoperatively. A three-month follow-up angiography revealed no recanalization of the aneurysm and indicated tolerable blood flow through the right MCA, as compared to the preoperative angiography. We suggest that in selected patients, stent-assisted coil embolization of proximal MCA fusiform aneurysms can be an effective treatment modality.