• 대한물리치료과학회지
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• 제16권4호
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• pp.39-47
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• 2009

Background: To evaluate the effects of Australian stabilization exercise for chronic low back pain. Methods: Interventions consisted of exercises aimed at recovery of Multifidus in cocontraction with Transverse abdominis through neural control retraining. Results: After exercise, there were significant improvement(p<.05) in pain and disability score. Conclusions: Neural control stabilization exercise can be effective intervention for chronic Low Back Pain patients.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2001년도 ICCAS
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• pp.71.3-71
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• 2001

Passive Stabilization method and active stabilization method are mainly used to comprise a control system of platform stabilizer. Passive Stabilization method has demerits because of size and weight except that control structure is simple while active stabilization method using sensors can reduce size and weight, it requires high sensor technique and control algorithm. In this paper, a stabilizing controller using adaptive fuzzy control technique and floating-point processor(DSP) is suggested.

• Journal of Oral Medicine and Pain
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• 제44권2호
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• pp.74-76
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• 2019

A conservative treatment approach to temporomandibular disorder (TMD) is recommended as the first line of management, usually with a stabilization splint. Recently, computer-aided design/computer-aided manufacturing and three-dimensional printer has been widely used in the dentistry since several years ago. The authors apply digital dentistry in oral medicine fields to make stabilization splint for TMD treatment.

• 접착 및 계면
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• 제11권1호
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• pp.15-25
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• 2010

본 연구에서는 레이온직물에 대하여 $180^{\circ}C$ 및 $200^{\circ}C$의 비교적 낮은 온도영역에서 장시간 동안 등온 안정화공정을 수행하였다. 등온 안정화공정 전과 후의 변화된 레이온직물의 중량감소율, 치수변화율, X-선 회절, 그리고 전자현미경을 사용하여 섬유 형태를 관찰한 결과, 레이온 프리커서 섬유의 화학적, 물리적 변화는 $200^{\circ}C$ 이하의 안정화온도에서도 지속적이면서 서서히 진행되는 것으로 확인되었다. 그리고 안정화공정 전에 사용한 네 종류의 화학전처리제는 레이온직물의 특성변화에 서로 다른 영향을 주는 것으로 조사되었다. 결과적으로, 주어진 안정화 조건하에서 $H_3PO_4$와 $Na_3PO_4$$는 레이온직물의 안정화 반응을 촉진시키는 역할을 하는 반면, $NH_4Cl$과 $ZnCl_2$는 안정화 반응을 더디게 하거나 지연시키는 역할을 하는 것으로 판단되었다. 또한 $350^{\circ}C$에서 행한 2차 안정화에서는 $H_3PO_4$가 상대적으로 가장 낮은 직물의 중량감소율을 보여주었으며, 난연 기능을 가지고 있는 인산이 2차 안정화 단계에서도 후속 반응을 다소 더디게 하는데 기여한 것으로 사료되었다.

• 한국전문물리치료학회지
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• 제22권1호
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• pp.37-48
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• 2015

This study aimed to investigate the effect of the abdominal drawing-in maneuver (ADIM) and abdominal expansion maneuver (AEM) on trunk stabilization, as well as trunk muscle activities and differences in quadruple visual analogue scale, Korean Oswestry Disability Index, and Fear Avoidance Beliefs Questionnaire scores, in patients with chronic low back pain and lumbar spine instability. To increase intra-abdominal pressure during the trunk stabilization exercise, the technique of pushing the abdomen out using diaphragmatic abdominal breathing suggested by Pavel Koral was used, which we termed the AEM. Fifty patients who tested positive on more than three of the five lumbar spine instability tests were separated from 138 patients with chronic low back pain of these patients, 16 were placed in the control group (trunk stabilization exercise), 17 were placed in the ADIM group (trunk stabilization exercise with ADIM), and 17 were placed in the AEM group (trunk stabilization exercise with AEM). Each group participated in the study for 30 minutes three times weekly for 4 weeks. Surface electromyography was used to measure the trunk muscle activities during the kneeling forward and supine bridging positions, and one-way repeated analysis of variance was used to determine the statistical significance of the trunk muscle activities in the rectus abdominis, internal oblique (IO), erector spinae, and multifidus (MF) muscles. The ADIM and AEM groups showed relatively larger improvements in psychosocial and functional disability level than control group. There were significant changes among the three groups, those from the measured values of the AEM group was significantly higher than the other two groups in changes in IO and MF trunk muscle activities (p<.05). This finding demonstrates that trunk stabilization exercises with AEM is more effective than ADIM for increasing trunk deep muscle activity of chronic low back pain patients with lumbar spine instability.

• 대한임상전기생리학회지
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• 제9권2호
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• pp.39-46
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• 2011

Purpose : The purpose of this study was to compare the effect of three types of therapeutic exercises by applying them to lower back pain patients. Methods : This program was conducted for 30 patients 30 to 55 years old, who visited a rehabilitation center due to lower back pain. We separated participants into three groups with different therapeutic exercises: one with lumbar stabilization exercises, another with stretching exercises, and the other with both exercises. Each exercise was held once a day, 3 days a week, for 6 weeks. We analyzed the effect of these exercises by checking the change of lumbar muscle strength and pain relief. Lumbar muscle strength was measured by AS-Med and pain strength was estimated by VAS. Results : The result of the programs was established according to the following list: 1) Lumbar stabilization exercises and stretching exercises lead to higher lumbar muscle strength and pain relief (p<0.05). 2) Lumbar muscle strength in the lumbar stabilization exercise group was significantly higher than the stretching exercise group (p<0.05). 3) Pain relief in the stretching exercise group was significantly higher than the lumbar stabilization exercise group (p<0.05). Conclusion : This study shows all of the groups experienced higher lumbar muscle strength and pain relief. Specifically, there was higher lumbar muscle strength in the lumbar stabilization exercise group and higher pain relief in the stretching exercise group. Therefore the ideal intervention to improve lumbar muscle strength and pain relief for patients is to implement both lumbar stabilization exercises and stretching exercises.

• 대한물리의학회지
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• 제8권1호
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• pp.29-39
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• 2013

PURPOSE: The purpose of this study was to determine if the program focusing on gluteal muscle exercise combined lumbar stabilization had an effects on pain, functional disability and lumbar instability in chronic low back pain patients who had lumbar instability. METHODS: Thirty four patients were recruited in this study. The participants were randomly allocated stabilization exercise group (SEG) (n=17) and gluteal muscle exercise group (GEG) (n=17). The gluteal muscle exercise group conducted gluteal muscle exercises combined lumbar stabilization and stabilization exercise group did only lumbar stabilization exercise for 30 minutes three times a week for six weeks. Pre-exercise assessment tools, visual analogue scale (VAS) and Korean version Oswestry Disability Index level (KODI) were used for pain and functional disability each. Also, these were scored by the tool of lumbar instability. The pain, functional disability levels, and lumbar instability after six weeks with this exercise were re-evaluated. RESULTS: First, SEG showed a significant decrease in the lumbar pain, functional disability levels and lumbar instability. Second, GEG showed a significant decrease in the lumbar pain, functional disability levels and lumbar instability. The third, GEG showed even more significant decrease in the lumbar pain levels, functional disability levels and lumbar instability than SEG. CONCLUSION: Gluteal muscle exercises combined lumbar stabilization are more effective than only lumbar stabilization exercise in the pain levels, functional disability levels and lumbar instability for the chronic low back pain patients with lumbar instability.

• 한국산학기술학회논문지
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• 제13권1호
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• pp.156-163
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• 2012

본 연구는 우리나라 주식시장에서 2000년 2월에서 2007년 6월까지 유지하여온 시장조성제도가 유형별로 각각 코스닥 IPO 저평가에 미친 영향을 분석함으로써 가격지지제도의 실효성과 유형별 차이를 검증하고자 하였다. 또한 저평가에 미친 영향을 사전적인 효과와 사후적인 효과로 나누어 분석함으로써 시장 반응을 시기적으로 분류하고자 하였다. 분석결과, 시장조성제도는 공모가 저평가에 사전적 및 사후적 모두 IPO 저평가를 확대시키며, 사전적 효과가 사후적 효과보다 큰 것으로 나타났다. 또한 시장조성제도 중 시장조성의무제도와 풋백옵션제도의 제도별 차이분석에 있어 시장조성의무제도가 풋백옵션제도 보다 사전적 및 사후적 모두에 있어 저평가를 더욱 확대시키는 것으로 나타났다. 본 연구는 시장조성제도의 전 과정을 분석 대상으로 한 점과 시장조성제도에 의한 저평가 영향을 사전, 사후적인 효과로 나누어 분석한 점에서 선행연구들과 차별성을 가진다.

• Physical Therapy Rehabilitation Science
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• 제9권3호
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• pp.131-139
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• 2020

Objective: The purpose of this study was to evaluate the effect of virtual reality (VR)-based core stabilization exercise on upper extremity function, postural control, and depression among persons with stroke with hemiplegia. Design: Randomized controlled trial. Methods: This study was conducted with the inclusion of 24 participants and were randomly assigned to either the VR-based trunk stability exercise group (n=12) or control group (n=12). The VR-based trunk stability exercise group performed core stabilization exercises in a VR environment for 30 minutes. Meanwhile, the control group conducted general core stabilization exercises for 30 minutes. The participants trained 3 times a week for 4 weeks. The manual functional test (MFT), Box and Block Test (BBT), Berg Balance Scale (BBS), Trunk Impairment Scale (TIS), the Geriatric Depression Scale (GDS) were used to assess all participants before and after the intervention. Results: The VR-based core stabilization exercise group had a significant improvement in upper extremity function (MFT, BBT) and postural control (BBS) compared with the control group (p<0.05). The VR-based core stabilization exercise showed a significant difference after intervention in the TIS and GDS scores (p<0.05), but they did not significantly differ between the two groups. Conclusions: The result showed that VR-based core stabilization exercise can be effective in improving upper extremity function and postural control among patients with stroke more than the sole application of general physical therapy.

• 대한물리의학회지
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• 제6권2호
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• pp.235-246
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• 2011

Purpose: The aim of this study is to compare and assess the effects of lumbar stabilization exercise on the balance ability of young college studets with low back pain after having performed spinal stabilization exercise by using 3-dimensional air-balance system and gym ball. Methods: The subjects of this study were 34 low back patients in their early twenties. They were divided into two groups: 3-dimensional lumbar stabilization exercise group(N=17) and gym ball lumbar stabilization exercise group(N=17). The period of the intervention was for five weeks. VAS(Visual Analogue Scale) for pain test, ODI(Oswestry Disability Index) for ADL limitation test, Tetrax system for static balance test, and Air-balance system 3D for dynamic balance test were used as evaluation tools for this study. Results: Pain showed significant decrease in both groups after having performed the experiment, but ADL limitation of the groups did not show any remarkable difference between before and after the experiment. Dynamic balance ability in the 8-directional angle comparison test significantly increased in all directions except for the backward, left-backward, and right-backward directions. As for dynamic balance ability in the 8-directional postural test, 3D exercise group showed statistically significant reduction in every direction while gym ball exercise group did not(p<.05). However, when it comes to static balance ability in the weight distribution and stability test, there was not significantly change between pre and post test in both groups. Conclusion: This study shows 3-dimensional lumbar stabilization exercise is more effective in the lumbar stabilization of coordinated movement than gym ball exercise, which may imply that 3D air-balance system can be used for the therapeutic treatment of body imbalance for patients with low back pain.