• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.25 no.2
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• pp.31-38
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• 2019

Background: The purpose of this study was to investigate the effects of Progressive muscle relaxation training on pain, Korean version of Oswestry disability index (ODI) and psychological level in chronic low back pain patients with somatization. Methods: A total of 30 subjects were treated with the experimental group (n=15) and conservative physical therapy (n=15). The experimental group was trained with progressive muscle relaxation (PMR), and the control group was treated with conservative physical therapy. Physical factor treatment was applied for 60 minutes by hot pack, electrotherapy and ultrasound. Both groups performed three times a week for six weeks. VAS, ODI, psychological level measurements were taken before and after intervention. Results: There was a significant difference in VAS (p<.05) and ODI (p<.01) between experimental and control group. At the psychological level, there were significant differences in somatization (p<0.01) and depression scales (p<.01), but not in anxiety. Conclusion: As a result of this study, the degree of pain was decreased, the level of back pain dysfunction was improved, and the somatization scale and depression scale were decreased by gradual muscle relaxation therapy.

• Physical Therapy Korea
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• v.8 no.4
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• pp.31-43
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• 2001

19명의 건강한 성인 남자의 우세팔쪽 위팔두갈래근에서 피로가 생길 때까지 2.4초를 하나의 주기로 팔꿉을 반복적 등장성으로 굽히고 펴서 표면근전도 신호를 얻었다. 처리과정 A 중앙주파수(MDF )는 이 신호의 0.5초 구간을 power spectrum analy sis (PSA)로 계산하였는데 상당량의 잡음이 있었다. 중앙주파수의 잡음 양을 비교하기 위해, 동일한 표면근전도에서 3번까지 신호를 받았다 (2.4초 구간을 PSA로 계산한 처리과정 B, 13 point 로 moving averages한 처리과정 C, digital low pass filter한 처리과정 D). 그리고 나서 그 신호의 주요 주파수 성분을 뽑아내었다. 위의 중앙주파수 자료와 시간간의 회귀직선을 분석하면 초기 중앙주파수, 회귀기울기, 그리고 피로지수와 같은 모수를 얻을 수 있다. 비모수 검정의 하나인 Kendall 기법으로 네 개의 처리과정간의 모수를 비교하였다. 통계결과 잡음이 처리과정 A보다 B, C, D에서 적었고, D에서 가장 적게 나타났다. 중앙주파수를 digital low pass로 여과(filtering)함으로써 앞으로 있게 될 동적 운동 시 근피로 모니터기의 신뢰도를 높일 수 있다.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.22 no.1
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• pp.1-7
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• 2016

Background: The purpose of this study was to investigate the effects of lumbar stabilization exercise with neurodynamic techniques on lumbar muscular strength and Oswestry index in lumbar disc herniation patient. Method: The Lumbar stabilization exercise with neurodynamic techniques was performed by 30 pt's in G hospital. The subjects were randomly organized into a study group 15 and control group 15. The exercises and neurodynamic technique were conducted for 40 minutes and, 3 times a week (total 24 times for 8 weeks). General characteristics of the Lumbar muscular strength and Oswestry disability index (ODI) were measured before the training and at 4 weeks and 8 weeks after the intervention. Comparison of the time dependent variable for each group was Calculated by a one way repeated analysis of variance (ANOVA). Comparison between the two groups was Calculated by an analysis of covariance (ANCOVA). Result: There was a significant difference in the Lumbar muscular strength and ODI (p<.05). Similarly in the inter-group analysis, significant differences (p<.05) occurred. Conclusion: In this study, we demonstrated that lumbar stabilization exercises with neurodynamic techniques are an effective therapy for Lumbar muscular strength and ODI in lumbar disc herniation patient's.

• Journal of the Korean Society of Physical Medicine
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• v.10 no.1
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• pp.107-113
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• 2015

PURPOSE: This study was to investigate the effect of stabilization exercise with abdominal breath on Balance and Oswestry Disability Index for Low Back Pain Patients. METHODS: The subjects were 18 low back pain patients in their twenties. The subjects were randomly assigned into experimental group and control group. Control group and experimental group both participated in 30 minutes of stabilization exercise for 8 weeks(5 times/week), and experimental group participated in stabilization exercise with abdominal breath. The subjects were tested balance and pain using BioRescue and Oswestry Diability Index respectively, before and after intervention. RESULTS: The experimental group showed a statistical significance in movement areas of the body's center(p<.05), but there was no significant differences between groups (p>.05). The experimental group showed a statistical significance in movement distances of the body's center with eyes open(p<.05), and there was significant differences between groups(p<.05). Both groups showed a statistical significance in ODI between pre and post test(p<.05) but there was no significant differences between groups(p>.05). CONCLUSION: As a result, the group participating in stabilization exercise with abdominal breath had a more effective improvement than the control group. Therefore, the stabilization exercise with abdominal breath may be used improving balance and pain in low back pain patients.

• Journal of Korean Physical Therapy Science
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• v.18 no.3
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• pp.93-99
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• 2011

Purpose : In order to investigate the effects of balance training on patients with degenerative arthritis. Methods : 30 participants aged 60 or older participated in balance training for an 8-week period. The effects of the balance training were measured by the visual analog scale(VAS) and static and dynamic balancing. The following are the results of the study. Results : There were no statistically significant differences in measurements of pain when control group participants were at rest and while walking as measured by VAS, but there were statistically significant reductions for the experiment group. Within the control group, there were no statistically significant differences between pretest and posttest results for opened and closed-eye static balance index and visual dynamic balance index. However, within the experiment group, there were statistically significant differences between pretest and posttest results for opened and closed-eye static and dynamic balance indices. Conclusion : The results above provide evidence that balance training effects pain and balance of patients with osteoarthritis and aids in functional movement.

• Physical Therapy Korea
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• v.14 no.2
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• pp.85-90
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• 2007

In many manufacturing occupations, industrial workers reported foot or lower leg problems such as discomfort, pain or orthopedic deformities. This study investigated the effects of two different working conditions upon assembly worker's perception of discomfort and foot pain associated with various body parts. Twenty-three male volunteers performed work in the factory. Ergonomic intervention has been to modify the flooring in an attempt to alleviate the problems associated with constrained standing and walking work. The worker's standing conditions consisted of standing on a hard floor while wearing shoe insoles. Questions were asked regarding body discomfort and foot pain. Significant differences in body discomfort and foot pain were found when comparing the overall effects of wearing shoe insoles on a hard floor (p<.05). This investigation indicated that shoe insoles reduced body discomfort and foot pain (p<.05).

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.23 no.2
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• pp.1-8
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• 2017

Background: The purpose of this study was to investigate the effects on static balance and disability in chronic low back pain with lumbar rotation extension subgroup of trascranial direct current stimulation (tDCS) and lumbar motor control exercise (MCE). Methods: In 40 male low back pain with lumbar rotation extension subgroup subjects were recruited for the study. Subjects were randomly allocated into two groups. Experimental groups received tDCS and MCE, Control groups received sham-tDCS and MEC. Before and after intervention, measured in surface area, whole path length and Roland-Morris low back pain questionnaire (RMQ). Results: Showed a significant static balance and disability from the experimental groups compared to the control group. Showed a no significant RMQ score from experimental groups compared to the control group. Conclusions: tDCS and lumbar MCE showed the increased static balance in chronic low back pain with lumbar rotation extension subgroup.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.15 no.2
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• pp.25-34
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• 2009

Purpose : The purpose of this study is to investigate that the Effects of Pain, Lumbar Flexibility and Abdominal Obesity of Patient with Low Back Pain and Abdominal Obesity after Lumbar Strengthening Exercise. Methods : The selected subjects of this study were 17 patients who had diagnosis on low back pain and body mass index was more than $25kg/m^2$ and lumbar length was more than 90cm. They divided into a control group with 10 patients doing lumbar stabilization exercise and an experimental group with 7 patients ding simple lumbar strengthening exercise in order to compare degrees of oswestry disability index and lumbar stability, lumbar length was measured before the exercise, in 4 weeks and 8 weeks after exercises respectively. Result : lumbar strengthening exercise on patients with low back pain and abdominal obesity affected improving function of lumbar and decrease of pain with abdominal obesity. Conclusion : Then lumbar stabilization exercise than simple strengthening exercise affected decrease of Visceral fat tissue on abdominal obesity.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2002.02a
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• pp.79-85
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• 2002

본 연구는 대추 수확기개발을 위한 기초연구로써 대추의 열매, 잎, 잎줄기의 물리적 역학적 특성을 조사.분석하였으며, 그 결과를 요약하면 다음과 같다. .대추 열매의 평균 장경, 경, 부피, 무게, 탈과력은 각각 32.02 mm, 23.9 mm, 10.0$\times$$10^{-6}$m$^3$, 5.2~12.8g, 5.7 N으로 나타났다. .대추무게가 증가하면 탈과력은 증가하고, F/W는 감소하는 경향을 나타났다. .대추나무가지의 평균 탄성계수는 7.01$\times$$10^{8}$ N/m$^2$였고, 가지의 굵기가 증가하면서 감소하였다. .대추나무가지의 평균 비틀림 강성은 5.2$\times$$10^{7}$ N/m$^2$으로 나타났으며, 가지의 굵기가 증가하면서 음의 지수 함수적으로 감소하는 경향을 나타냈으나, 데이터가 일정한 범위에 산재해 있어 가지의 굵기에 따른 강성계수변화 특성은 일정한 경향으로는 나타나지 않았다. .대추 잎줄기의 평균 무게, 잎수, 길이가 각각 0.7g, 6.6개, 12.2 cm로 나타났다. .대추 잎의 평균 잎면적, 무게, 탈리력은 각각 13 $cm^2$, 0.2g, 4.4 N으로 나타났다. .종말속도는 대추 열매의 무게가 증가하면서 증가하고, 대추잎의 무게, 면적이 증가할수록 감소하는 경향을 나타냈으며, 잎줄기의 종말속도는 잎줄기 무게 혹은 잎줄기에 매달린 잎의 수와는 거의 영향을 받지 않는 것으로 나타났으며, 잎줄기의 길이가 증가할수록 약간씩 증가하는 경향을 나타냈다.

• Proceedings of the Korea Water Resources Association Conference
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• 2016.05a
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• pp.162-162
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• 2016

본 연구에서는 한국 낙동강에 위치한 강정-고령보에 설치된 by-pass 어도의 유인효율을 유량 변화에 따라 살펴보고, 어도 유인효율을 극대화할 수 있는 최적의 본류 방류량을 산정하였다. 강정-고령보는 고정보와 가동보로 구성된 혼합식 보로 유량조절이 가능하며, 가동보의 조작에 따라 by-pass 어도 내의 유량이 결정된다. 유인효율의 지표로 목표어종의 HSC(Habitat Suitability Criteria) 지수에 기반한 WUA(Weighted Usable Area)를 삼았다. WUA는 평면 2차원 물리서식처 모형인 River2D를 활용하여 계산하였다. 또한 River2D로 계산된 유속장은 GPS Floater를 활용한 현장관측 자료로 검증하였으며, 어망을 이용한 월별 어류 모니터링 자료로 유인효율 평가의 타당성을 간접적으로 검증하였다. 결과적으로 본 연구 대상인 강정-고령보의 by-pass 어도에서 가장 효과적으로 목표 어류를 유인하기 위해서는 본류의 유량이 190 cms내외를 유지해야 한다. 특히 목표 어류인 모래무지가 봄철(4월~6월)에 산란기를 맞아 상하류로 이동하려는 경향을 띄므로, 이때 적절한 가동보 운영을 통해 본류 유량을 190 cms로 유지하는 것이 필요하리라 사료된다.