• 대한물리의학회지
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• 제1권1호
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• pp.37-47
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• 2006

Purpose : The purpose is to assess the effects of muscle activity of normal person with contact laterally wedged insoles with strapping of varying elevations of 9, 15, 21mm. Methods : The subjects were adult males and women who had not experienced any knee injury. They were asked to performed from isometric contraction exerciese in four postures using lateral wedged. The normalized EMG activity levels(%MVC) of the vastus lateralis, vastus medialis, tibialis anterior, soleus for the four postures of the lower extremities were compared using one way repeted measures ANOVA. Results : Comparison of EMG amplitudes across all postures revealed no significant differences among all muscles(P>0.05). Conclusion : Further studies of the effect of wedged insole angle on knee varus torque in patients with medial-lateral knee osteoarthritis are needed.

• Journal of Acupuncture Research
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• 제29권5호
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• pp.61-74
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• 2012

Objectives : This study is perfomed for preparation of oriental medicine clinical guidelines for drawing up the standards of oriental medicine demonstration and diagnosis classification about the knee pain. Methods : Statistical analysis about Crane's-knee wind(鶴膝風), arthralgia syndrome(痺症), knee injury(膝傷), gout arthritis(痛風), Youk jeol poung(歷節風) classified experts' opinions about knee pain patients by Delphi method is conducted by using oriental medicine diagnosis questionnaire. The result was classified by using linear discriminant analysis(LDA), diagonal linear discriminant analysis(DLDA), diagonal quadratic discriminant analysis(DQDA), K-nearest neighbor classification(KNN), classification and regression trees(CART), support vector machines(SVM). Results : The results are summarized as follows. 1. The result analyzed by using LDA has a hit rate of 81.65% in comparison with the original diagnosis. 2. The result analyzed by using DLDA has a hit rate of 63.3% in comparison with the original diagnosis. 3. The result analyzed by using DQDA has a hit rate of 65.14% in comparison with the original diagnosis. 4. The result analyzed by using KNN has a hit rate of 74.31% in comparison with the original diagnosis. 5. The result analyzed by using CART has a hit rate of 75.23% in comparison with the original diagnosis when the test of selected 13 significant questions based on analysis of variance was performed. 6. The result analyzed by using SVM has a hit rate of 87.16% in comparison with the original diagnosis. Conclusions : Statistical analysis using oriental medicine diagnosis questionnaire on knee pain generally turned out to have a significant result.

• 대한정형외과학회지
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• 제56권4호
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• pp.341-345
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• 2021

슬개골하 지방괴는 슬관절 전방 부위에 위치한 세 가지의 지방괴 중 하나로 슬개골하 지방괴의 손상이 비교적 흔하며, 원인은 주로 수술에 인한 의인성 손상 및 충돌 등에 의한 반복적인 미세 외상 등으로 알려져 있다. 저자들은 국내 및 국외에 보고된 적이 없는 슬관절의 과굴곡 상태로 전면부에 좌상을 입은 후 발생한 슬개골하 지방괴의 급성 분리 손상을 자기공명영상을 통해 확인하였고, 이를 보존적으로 치료하여 완치된 1예를 경험하였기에 보고하는 바이다.

• 한국운동역학회지
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• 제24권1호
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• pp.59-66
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• 2014

The purpose of this study was to investigate the effects of knee joint muscle fatigue and overweight on shock absorption during single-leg landing of adult women. Written informed consent forms, which were approved by the human subject research and review committee at Dong-A University, were provided to all subjects. The subjects who participated in this study were divided into 2 groups: a normal weight group and an overweight group, consisting of 15 young women each. Both the normal weight group and the overweight group showed that use soft landing and ankle dominant strategy. The peak vertical ground reaction force, the knee joint absorption power, and eccentric work done, as the increase of knee joint muscle fatigue level, showed a decrease. And the hip joint absorption power and eccentric work done, as the increase of weight, was less than the overweight group showed the normal weight group. In conclusion, the accumulation of the knee joint muscle fatigue and the increase of body weight may lead to an increased risk of injury during landing.

• 대한물리치료과학회지
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• 제9권3호
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• pp.161-170
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• 2002

knee injuries are among the most common problems confronting patients, physical therapist and physicians. since the bony structure provides little stability, the soft tissues are required to withstand high forces, often resulting in tissue overload and injury immobilization of the knee in the presence of a hemarthrosis usually leads to proliferation of intraarticular connective tissue adhesions and pint fibrosis. the physical basis of treating scar tissue is early controlled motion. the management of the knee with increased instability is to strengthening the muscles to properly treat an soft tissue injuries, physical therapist should know about the anatomic structures and biomechanical function of the knee joint, in this review article, we discuss the physiologic properties of soft tissue, biomechanical observation in fibrous connective tissue, managing soft tissue contractures, principles in treating scar tissue and treatment of the knee with increased instability.

• 한국운동역학회지
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• 제23권1호
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• pp.63-76
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• 2013

The purpose of this study was to investigate the effects of knee joint muscle fatigue and overweight on the angular displacement and moments of the lower limb joints during landing. Written informed consent forms, which were approved by the human subject research and review committee at Dong-A University, were provided to all subjects. The subjects who participated in this study were divided into 2 groups: a normal weight group and an overweight group, consisting of 15 young women each. The knee joint muscle fatigue during landing was found to increase the dynamic stability by minimizing the movements of the coronal and horizontal planes and maintaining a more neutral position to protect the knee. The effect of body weight during landing was better in the normal weight group than in the overweight group, with the lower limbs performing their shock-absorbing function in an efficient manner through increased sagittal movement. Therefore, accumulated fatigue of knee joint muscles or overweight may be highly correlated with the increase in the incidence of injury during landing after jumping, descending stairs, and downhill walking.

• 대한정형도수물리치료학회지
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• 제27권2호
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• pp.37-43
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• 2021

Background: The purpose of this study is to compare and analysis the changes in strength and endurance of the knee extensor muscles after Anterior cruciate ligament reconstruction. Methods: Twelve male subjects with ligament injury were seated on Biodex and the hip joint was flexed at 110°, and torso, lower extremities, and legs were fixed using Velcro. The resistance device was placed at a point 3cm above the ankle, and measurements were taken before and a surgery at 60°/sec and 180°/sec when the knee was maximally extended. The postures ingeniously combine forward-bending poses countered with backward-bending ones. Results: There was no significant difference in the comparison of muscle strength of 60°/sec and 180°/sec before surgery. But there was a significant difference after surgery. There was significant difference in muscle endurance both before and after surgery. There was a significant difference in the pre- and post- operative comparison values of muscle strength and endurance in isokinetic movements at 60°/sec and 180°/sec during knee extension on the injured side. Conclusion: For cruciate ligament tears, Orthopedic reconstruction is recommended. Correct alignment of the knee ligament after surgery can enhance the strength and endurance of the quadriceps femoris during knee extension rejuvenated.

• 대한통합의학회지
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• 제1권2호
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• pp.47-57
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• 2013

Purpose : The purpose of this study was to compare the Effects of Knee Extensor, Flexor Muscle Strength and Joint Position Sense in Squat Exercise on Variety Surface. Method : Subjuects were consisit of 30 male and female who had non disorder knee joint. we had devided 3 group(control group, balance pad group, and togu group) and we measured that knee joint $15^{\circ}/45^{\circ}$proprioception(position sense) and Peak Torque of knee extensor, flexor muslce at $60^{\circ}/sec$, $180^{\circ}/sec$ angular velocity. Result : First, knee joint $15^{\circ}$proprioception(position sense) of balance pad and togu group was significantly different after exercise(p<.05), but only balance pad group was significantly different at knee joint $45^{\circ}$. Second, knee extensor Peak Torque of balance pad and togu group was significantly different at $60^{\circ}/sec$, $180^{\circ}/sec$ angular velocity(p<.05). Third, knee flexor Peak Torque of balance pad and togu group was significantly different at $60^{\circ}/sec$, $180^{\circ}/sec$ angular velocity(p<.05). Conclusion : Squat exercises on the balance pad and togu were affects knee joint proprioception and muscle strength improvement. These results suggest that squat exercise on the unstable surface is effective for prevention of knee joint injury and functional activity.

• 대한본초학회지
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• 제28권6호
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• pp.87-93
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• 2013

Objectives : Degenerative arthritis arises from several physiological factors. The purpose of this study is to investigate the beneficial effects of Phyto-extract Complex (CME) on degenerative arthritis. Methods : CME is composed of extracts of mulberry (Morus alba L.) fruit, mulberry leaves and black beans (Glycine max (L.) Merr.). To measure the toxicity of CME, we performed the single-dose toxicity study. For the evaluation of its effects on degenerative arthritis, we examined the inhibition of cyclooxygenase-2 (COX-2) activity, using in vitro enzyme activity assay, the reduction of protein expression of COX-2, 5-lipoxygenase (5-LO), and inducible nitric oxide synthase (iNOS) in RAW264.7 cells which were stimulated by lipopolysaccharide (LPS). We also examined the serum level of prostaglandins (PGs) and injury of the knee joint cartilage, using animal model of degenerative arthritis induced by mono-sodium iodoacetate (MIA). Results : CME did not have any toxicity in single-dose toxicity study. The CME inhibited the activity of COX-2 and could reduce the protein expression of COX-2, 5-LO and iNOS in RAW264.7 cells. The CME also reduced the serum level of PGs and prevented from the cartilage injury of knee joint in animal model of degenerative arthritis induced by MIA. Conclusions : Taken altogether, the CME could be useful for the improvement of degenerative arthritis through its various anti-inflammatory activities and prevention from the cartilage injury of knee joint.

• 대한정형외과스포츠의학회지
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• 제3권2호
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• pp.128-133
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• 2004

목적: 경골 Inlay 방법으로 자가 골-슬개건-골을 이용한 후방 십자 인대 재건술의 합병증을 알아 보고자 하였다. 대상 및 방법: 1994년 9월부터 2004년 1월까지 경골 Inlay방법으로 후방 십자 인대 재건술을 시행한 57명 58예를 대상으로 수술의 합병증에 대해 분석하였다. 남자가 50명, 여자는 7명이며, 평균 연령은 35세(15$\~$73세)였다. 후방 십자 인대 단독 손상은 28예, 슬관절내 동반 손상이 있는 경우가 30예였다. 원인 별로는 교통 사고가 39예로 가장 많았고, 운동 손상이 7예, 넘어진 손상이 7예, 기타 5예였다. 추시 검사는 술 후 4주, 3개월, 6개월, 1년째 외래 방문을 하게 하였다. 분석 방법은 슬관절의 안정성을 측정하기 위해서 KT-2000TM 슬관절 계측기 및 긴장 방사선 촬영을 사용하였고, Lysholm Knee Score와 임상적 합병증을 평가하였다. 결과: 수술 전 Lysholm Knee Score는 평균 43.2점에서 최종 추시상 87.9점으로 향상되었다 $KT-2000^{TM}$ 슬관절 계측기 검사 상 수술 전 평균 8.75 mm(6.2$\~$l4.3 mm)에서 최종 추시상 3.41 mm (2.1$\~$l0.6 mm)로 향상되었다. 수술 중 합병증으로 슬와 동맥 파열과 동반된 구획 증후군이 1예에서 발생되었으며, 슬개골 골절 1예, 20$^{\circ}$ 이상의 굴곡 운동 범위 감소가 2예, 근위 경골부의 고정 나사가 경골 전면부에 돌출되는 경우가 2예에서 있었다. 수술 후 합병증으로 동요 관절이 11예, 슬개골 골절이 1예, 슬관절의 신전 운동 범위 제한이 5예 및 굴곡 운동 범위 제한이 13예에서 관찰되었으며, 슬관절 주위 통증 21예, 무릎을 꿇을 때 통증이 8예 관찰되었다 결론: 경골 Inlay 방법으로 자가 골-슬개건 -골을 이용한 후방 십자 인대 재건술의 다양한 합병증이 발생되어 수술 및 수술 후 재활시 세심한 주의가 요구된다.