• 재활치료과학
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• 제11권3호
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• pp.37-50
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• 2022

목적 : 최근 3년간 국내 및 국외 학회지에 게재된 뇌졸중 편마비 환자의 상지 운동 또는 기능 평가에 근전도가 사용된 연구에 대해 알아보았다. 연구방법 : 뇌졸중 환자의 상지 운동 또는 기능 평가에 근전도가 사용된 연구를 검토하기 위해 데이터베이스 PubMed, EMBASE, Scopus, RISS, KISS를 사용하여 문헌을 검색하였다. 검색어는 ('stroke' OR 'hemiplegia') AND ('EMG' OR 'electromyography' OR 'electromyogram' OR'muscle activity') AND ('Upper limb' OR 'Hand') 또는 (뇌졸중 OR 편마비) AND (근전도 OR 근활성도) AND (상지 OR 상지기능 OR 손)을 사용하였다. 검색 기간은 2018년 1월 1일부터 2021년 12월 31일로 설정하였다. 결과 : 최종적으로 15편의 연구가 도출되었으며, 뇌졸중 편마비 환자를 근전도를 사용해 평가할 때 근활성도를 평가하는 연구가 가장 많았으며, 일상생활과 밀접한 과제를 수행하는 중재, 보조도구를 사용한 중재, 단순 동작의 반복을 제공하는 중재 등이 가장 빈번하게 사용되었다. 결론 : 근전도 검사를 사용해 상지기능을 평가할 때, 연구 목적에 따라 함께 사용할 수 있는 평가도구를 제시하고, 평가 시 근전도 검사를 활용할 수 있는 중재를 설정하는 근거를 제공한다는 의의가 있다.

• Journal of Genetic Medicine
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• 제16권2호
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• pp.49-54
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• 2019

Purpose: Potocki-Lupski syndrome (PTLS), is a recently identified, rare genomic disorder. The patients are affected by infantile hypotonia, poor growth and developmental delay. Facial dysmorphism may not be obvious in some patients. PTLS is associated with microduplication at chromosome 17p11.2. In the current study, three Korean patients are reported with their clinical and genetic features. Materials and Methods: The clinical findings of each patient were reviewed. Karyotyping and multiplex ligation-dependent probe amplification (MLPA) analyses were done for genetic diagnoses. Results: All the patients did not have the characteristic dysmorphic features, such as broad forehead, triangular face, asymmetric smile and palpebral fissures. On the other hand, all three patients were affected by variable degree of developmental delay, poor oral intake, failure to thrive, and language development disorders. Chromosome 17p11.2 duplication was identified by conventional karyotyping analysis only in one patient, whereas the other confirmed by MLPA analyses. Conclusion: Delayed development was mostly commonly observed in our patients without distinct dysmorphic facial features. In this respect, genomic screening in patients with developmental delay would identify more cases with PTLS to understand their long-term clinical courses with the development of adequate psychological and rehabilitation education program.

• 구강회복응용과학지
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• 제31권4호
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• pp.340-348
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• 2015

임플란트주위염(peri-implantitis)은 기능중인 골유착 임플란트 주위의 조직에서 생기는 사이트 별 감염성 질환이며 임플란트 후기 실패(late failure)의 원인으로 가장 높은 비율을 차지한다. 여러 연구들을 통해 미생물 침착이 임플란트주위염에 미치는 영향이 보고된 바 있으며 세균막의 제거는 임플란트주위염의 치료 시 필수조건이 된다. 최근에 여러 연구들을 통해 티타늄 임플란트에 레이저를 사용하여 표면을 살균, 정화 시키는 방법에 대한 실험이 많이 보고되고 있다. 본 논문에서는 임플란트주위염 처치에 있어 레이저가 갖는 효능에 대한 최근 연구 결과들을 문헌고찰을 통해 되짚어보고자 한다.

• The Korean Journal of Pain
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• 제33권2호
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• pp.121-130
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• 2020

Background: Transcutaneous electrical nerve stimulation (TENS), manual acupuncture (MA), and spinal cord stimulation (SCS) are used to treat a variety of pain conditions. These non-pharmacological treatments are often thought to work through similar mechanisms, and thus should have similar effects for different types of pain. However, it is unclear if each of these treatments work equally well on each type of pain condition. The purpose of this study was to compared the effects of TENS, MA, and SCS on neuropathic, inflammatory, and non-inflammatory pain models. Methods: TENS 60 Hz, 200 ㎲, 90% motor threshold (MT), SCS was applied at 60 Hz, an intensity of 90% MT, and a 0.25 ms pulse width. MA was performed by inserting a stainless-steel needle to a depth of about 4-5 mm at the Sanyinjiao (SP6) and Zusanli (ST36) acupoints on a spared nerve injury (SNI), knee joint inflammation (3% carrageenan), and non-inflammatory muscle pain (intramuscular pH 4.0 injections) in rats. Mechanical withdrawal thresholds of the paw, muscle, and/or joint were assessed before and after induction of the pain model, and daily before and after treatment. Results: The reduced withdrawal thresholds were significantly reversed by application of either TENS or SCS (P < 0.05). MA, on the other hand, increased the withdrawal threshold in animals with SNI and joint inflammation, but not chronic muscle pain. Conclusions: TENS and SCS produce similar effects in neuropathic, inflammatory and non-inflammatory muscle pain models while MA is only effective in inflammatory and neuropathic pain models.

• 한국산학기술학회논문지
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• 제21권11호
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• pp.28-36
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• 2020

다양한 산업분야에서 자기장 센서 기술들을 응용한 제품들이 상용화되면서, 자기장 센서 데이터의 분석 및 처리방법이 중요하게 되었다. 자기장 센서는 사용하기에는 간편하고 설치에 용이하지만, 자석에 의해 생성되는 복잡한 자기력선 때문에 데이터 처리가 복잡하고, 특히 움직이는 대상에 대해서는 데이터 분석이 거의 불가능할 정도로 복잡하다. 기존의 자기장을 응용한 장비들은 자석이 움직이지 못하게 고정을 하거나, 고가의 장비들을 구입하여 데이터를 처리하는 방식을 사용하고 있다. 따라서, 자기장 센서를 사용하는 장비는 정확한 데이터를 수집하기 위해 수많은 연구가 필요하고, 고가의 장비들이 요구하게 되었다. 본 논문에서는 이런 문제점들을 해결하기 위해서, 소형의 영구 자석과 GMR 센서를 사용하여 손목 재활훈련이나 운동량을 측정하기 위해서 데이터를 처리하는 방법에 대해서 논의를 한다. 특히, 손목 재활훈련에서 발생되는 자기장 센서의 비선형적인 데이터 분석을 하고, 이런 분석을 통해서 데이터를 처리함에 있어서 고가의 장비를 사용하지 않고도 최대의 효과를 낼 수 있는 지능형 알고리즘과 같은 퍼지논리 방법을 제시하고 다른 알고리즘들과 비교하였다.

• 한국산학기술학회논문지
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• 제13권9호
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• pp.4045-4052
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• 2012

본 연구는 냉각 통증 모델을 이용해 간섭파전류와 경피신경전기자극간에 진통 효과를 비교하고자 하였다. 16명의 대상자는 6주기의 냉각 통증 모델 검사를 수행하였다. 대상자는 각 주기에서 차가운 물에 손을 담근 후 통증을 호소하는데 걸리는 시간을 이용하여 통증 역치와 시각적통증강도를 이용하여 통증 강도 및 통증 불편감을 측정하였다. 대상자에게 무작위로 각각 간섭파전류 주파수 50 Hz와 100 Hz, 경피신경전기자극 주파수 50 Hz와 100 Hz를 적용하였다. 본 연구에서 4가지 전기자극은 모두 통계적으로 유의하게 통증 역치가 증가하였으나 전기자극간에는 유의한 차이가 없었다. 그리고 통증 강도와 통증 불편감에서는 모두 유의한 차이가 없었다. 결론적으로 현재의 실험 조건에서 4가지 전기자극간에는 유의한 차이가 없었으나 주파수 50 Hz의 간섭파전류가 다른 전기자극보다 적용시 더 편안하였다.

• 대한한의학회지
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• 제39권3호
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• pp.89-100
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• 2018

Objectives: Korean Standard Classification of Functioning, Disability and Health (KCF), a useful tool for a comprehensive consideration of the health-related overall implications, might be also promising way to validate the effectiveness of Korean medicine. This study reports the change of pre- and post-hospitalization using the KCF in a patient with spinal cord infarction who underwent rehabilitation plus Korean medicine treatment. This study aims to apply the KCF to this case, evaluate its applicability, and review its expected benefits and obstacles in the clinical practice of Korean medicine. Methods: The changes in the overall health status of the patient were assessed by the KCF as well as the chief complaints, diagnosis, neurological deficits, and activities of daily living (ADL), impairment scale etc. before and after admission to a Korean medicine hospital were investigated. Results: Most of the chief complaints of the patient were improved enough to perform her daily routine activities independently. These improvements were reflected in the neurological function and ADL scores, but could not change the diagnosis according to the Korean Standard Classification of Diseases nor the impairment scale. The KCF, on the other hand, was able to grasp the changes of the patient in various aspects in terms of body function, body structure, activity and participation, and environmental factors. Conclusions: Through this case, we found the applicability of the KCF in clinical practice of Korean medicine and the possibility that the KCF can be a promising tool to show the effectiveness and benefits of Korean medicine.

• The Journal of Korean Physical Therapy
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• 제24권6호
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• pp.423-427
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• 2012

Purpose: The cerebellum is a region of brain structure that plays an important role in calibrating two different information of neural signal from descending motor commands and from ascending sensory inputs. Damage of the cerebellum shows a variety of classic motor symptoms such as postural and locomotor dysfunctions. Therefore, we tried to investigate motor function and skill in stroke patients with cerebellar lesions in sub-acute stage, and compare with these functions of patients with non-cerebellar lesions. Methods: Total twelve stroke patients with cerebellar lesion and 130 stroke patients with non-cerebellar lesions were retrospectively recruited in this study. For evaluation of motor strength, Motricity index (MI) for upper and lower limbs was tested. For measurement of motor skill function, the modified Brunnstrom classification (MBC), Manual function test (MFT), functional ambulatory category (FAC), and Barthel index were adopted. Results: In comparison of motor strength and motor skill function between two groups, statistical differences between the two groups were significantly observed only in upper MI and FAC. Although no significant differences were found in other variables, stroke patients with cerebellar lesion had higher scores in lower and total MI, MBC, and MFT, whereas they had lower scores in FAC and Barthel index. Conclusion: Our results showed that stroke patients with cerebellar lesion had greater impact on movement functions related to hand motor and walking ability in activities of daily life, compared with patients with non-cerebellar lesion, in spite of similar degree of motor function and skill between the two different lesioned-groups.

• 대한의용생체공학회:의공학회지
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• 제29권2호
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• pp.139-145
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• 2008

Many recent studies suggest that the posterior dynamic stabilization(PDS) can be a more physiologically-relevant alternative to the rigid fixation for the patients suffering from low back pain. However, its biomechanical effects or clinically proven efficacies still remain unknown. In this study, we evaluated kinematic behaviors of the lower lumbar spine with the PDS system and then compared to those of the rigid fixation system using finite element (FE) analysis. A validated FE model of intact lumbar spine(L2-L5) was developed. The implanted model was then constructed after modification from the intact to simulate two kinds of pedicle screw systems (PDS and the rigid fixation). Hybrid protocol was used to flex, extend, laterally bend and axially rotate the FE model. Results showed that the PDS systems are more flexible than rigid fixation systems, yet not flexible enough to preserve motion. PDS system allowed $16.2{\sim}42.2%$ more intersegmental rotation than the rigid fixation at the implanted level. One the other hand, at the adjacent level it allowed more range of motion ($2.0%{\sim}8.3%$) than the rigid fixation. The center of rotation of the PDS model remained closer to that of the intact spine. These results suggest that the PDS system could be able to prevent excessive motion at the adjacent levels and restore the spinal kinematics.

• 보건행정학회지
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• 제23권1호
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• pp.90-100
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• 2013

Background: This study examined the relationships of dementia, stroke, and combined multimorbidity with long-term care utilizations among older people in South Korea. Methods: A nationally representative sample of 10,130 older adults who used long-term care services in 2010 were analyzed. We used the 5% sample of aged 65 years or older linked with National Health Insurance Corporation registry data of long-term care insurance system. The sample was categorized into three groups: dementia only (47.6%), stroke only (36.3%), and both dementia and stroke (16.1%). We estimated the use of institutional care, home care, and total expenditure of long-term care services, adjusting for the severity of each function (such as daily life, behavior or cognitive change, nursing care needs, and rehabilitation care needs) and sociodemographic characteristics. Results: Having dementia symptoms was positively associated with the use of institutional care services, on the other hand, having stroke symptoms was positively related with the use of home care. The total long-term care cost was higher in the group of having both dementia and stroke. Conclusion: Older persons with dementia symptoms and stroke symptoms have different patterns of long-term care utilization, and the multimorbidity increased the overall expenditure of long-term care utilization. These findings imply a need for differentiated management strategy targeting physically and cognitively impaired older persons, and special concerning for persons with multimorbidity conditions for long-term care insurance program in Korea.