• Physical Therapy Korea
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• v.10 no.4
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• pp.1-15
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• 2003

본 연구는 슬관전 신전 직전에 수행된 선행 슬관절 굴곡이 슬관절 신전근의 최대 근력발생 및 근육 활성도(activation)에 미치는 영향을 알아보기 위하여 실시되었다. 16명의 정상인이 Cybex II 등속운동기구에서 3가지 다른 운동 속도($100^{\circ}/s$, $200^{\circ}/s$, $300^{\circ}/s$)와 2가지 다른 근육 활성 조건(선행부하가 없는 조건과 선행부하 조건)에서 슬관절의 최대 신전을 수행하였다. 연구대상자들에게 선행부하 없는 조건에서는 $90^{\circ}$ 슬관절 굴곡 상태에서 $0^{\circ}$까지 최대 신전을 수행하도록 하였고, 선행부하 조건에서는 구심성 슬와부 근육의 구심성 수축으로 $0^{\circ}$에서 $110^{\circ}$까지 굴곡한 후, 다시 $0^{\circ}$까지 최대 신전을 하도록 요구하였다. 종속변인으로는 내측광근과 외측광근의 최대 근전도와 최대 신전근력을 측정하였다. 실험 결과 최대 근전도와 최대 근력 모두 선행부하 조건에서 높게 나타났으며, 운동 속도가 증가함에 따라 최대 근력은 감소하는 전형적인 최대 근력-운동속도 상관법칙이 본 실험에서도 나타났다. 또한 운동속도와 전환속도 간의 간섭이 없는 것으로 나타나, 슬관절 신전근에 선행부하(preloading)를 가하는 것이 최대 근력-운동속도 상관법칙(force-velocity relation)에 영향을 미치지 못하는 것으로 해석되었다. 선행부하로 인해 증가된 최대 근력 및 근 활성도의 증가는 주로 신경촉진에 의한 것으로 해석된다.

• Journal of the Korean Arthroscopy Society
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• v.13 no.2
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• pp.161-164
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• 2009

Irreducible knee dislocation is a rare injury and often need an open procedure with ligaments reconstruction. This report describes a case of arthroscopic treatment of a patient with traumatic knee dislocation unable to reduce in a closed method. MRI revealed incarceration of the medial collateral ligament and capsule in the medial compartment. And arthroscopic examination confirmed incarcerated medial capsuloligamentous structures which prevented the knee from reduction. Arthroscopic procedure without ligaments reconstruction was complete when the medial condyle was well visualized and the knee reduced. After 4 weeks of immobilization in extension, range of motion exercise and gradual increases in weight bearing was allowed. At the 3- year follow-up, mild laxity was remained but the patient did not have any discomfort of doing ADL activity and showed full range of motion of the knee.

• The Journal of Korean Physical Therapy
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• v.12 no.2
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• pp.145-152
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• 2000

Pcak torque. angle of peak torque occurrence. total work, average power. endurance of the ankle plantar flexors were studied with the knee positioned $0^{\circ}\;and\;90^{\circ}$ flexion. Plantar flexors of 20 students were tested on Cybex 6000 dynamometer. The results were as fallows ; 1. The peak torque values were significantly higher with knee extension than knee $90^{\circ}$ flexion. 2. The angle of peak torque occurrence were earlier with knee extension than knee $90^{\circ}$ flexion, but no significant. 3. The total work were significantly higher with knee extension than knee $90^{\circ}$ flexion. at$30^{\circ}/sec$, but no significant at $90^{\circ}/sec$ 4. The endurance ratio were higher significantly with knee $90^{\circ}$ flex ion than knee extension 5. The mean average power were significantly higher with knee extension than knee $90^{\circ}$ flextion

• Journal of the Korean Data and Information Science Society
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• v.28 no.6
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• pp.1383-1402
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• 2017

This study aims to investigate the effects of aroma inhalation on pain, anxiety, and heart rate variability of elderly women with total knee arthroplasty (TKA) during continuous passive motion (CPM) exercise. Equivalent control group pretest-posttest design was used. Participants were randomized to intervention group (n=26) or control group (n=27). Participants inhaled aroma or distilled water for 5 minutes before CPM exercise and for 40 minutes during CPM exercise on 3 consecutive days. Pain NRS, number of painkiller used, anxiety NRS, blood pressure, and heart rate variability (HRV) were measured before and after intervention. Pain NRS, anxiety NRS, blood pressure in experimental group were significantly lower than those of control group. All indices of HRV were significantly different between the two groups. Based on these results, it can be concluded that aroma inhalation was effective in decreasing pain and anxiety and changing HRV among elderly women with TKA during CPM exercise.

• Journal of the Speleological Society of Korea
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• v.40
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• pp.30-70
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• 1994

지구의 중력작용에 대하여 수평으로 이동, 운동하는 걷기는 신체중에서도 하지장의 골격과 근육에 가장 큰 관계를 갖는다. 하지장의 골격으로는 하지대의 관골, 대퇴골의 대퇴골과 슬개골, 하퇴골의 경골과 비골, 그리고 발 부분이 되는 족골은 족근골. 증족골, 족지골의 세부분으로 총 62개의 골로 구성되며 관절은 고관절. 슬관절. 족관절이 있어 굴신, 신전, 회선, 내전, 의전과 같은 운동을 한다.(중략)

• Journal of Korean Orthopaedic Sports Medicine
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• v.2 no.1
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• pp.56-61
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• 2003

This is a review article about range of motion, stretching, and aerobic exercise in accelerated rehabilitation of knee and shoulder. If the joint was immobilized for a long time after injury, it would cause stiffness and atrophy. Therefore, this program includes various exercise techniques; range of motion for joint stiffness, and stretching for muscle relaxation, and cardiovascular training (e.g., swimming, upper body extremity, stationary bicycle) for prevention of cardiopulmonary function decrease. In accelerated rehabilitation, It is very important factor to make interaction between clinical exercise specialist and patients. Also, we recommend that they should discuss with sports medicine doctor as a team members the following; pain, adaptation of exercise, fitness level, and progression of program.

• Journal of the Korean Arthroscopy Society
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• v.13 no.1
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• pp.39-45
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• 2009

Purpose: To investigate the outcome of arthroscopic treatment for the complications of knee arthroplasty and to evaluate the effectiveness of arthroscopy. Materials and Methods: We analyzed 25 patients who underwent arthroscopy to treat complications of knee arthroplasty between May 1992 and June 2008. Nineteen cases out of 25 had total knee arthroplasty (TKA) and the remaining 6 cases had unicompartmental knee arthroplasty (UKA). Before arthroscopy, physical examinations and radiographic evaluations were carried out to find out the causes of complications. Joint fluid aspiration and hematologic evaluation were added when infection was suspected. Results: Among the diagnosis at the time of arthroscopy, there were 11 cases of infection, 6 cases of stiffness due to adhesion and fibrosis, and 2 cases of soft tissue impingement in the cases of TKA. Among the cases of UKA, one for each case of meniscal tear, subluxation of mobile insert, hemarthrosis, cement loose body, soft tissue impingement, and stiff knee was found. Nine out of 11 patients who had infection were treated successfully with arthroscopy but the remaining 2 cases underwent revision arthroplasty. Seven patients with arthrofibrosis had improved range of motion from $65^{\circ}$ preoperatively to $105^{\circ}$ postoperatively. The others also showed successful results after arthroscopy. Conclusion: Arthroscopy to treat complications after knee arthroplasty was a safe and effective method when appropriate selection of patients was made.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.5 no.1
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• pp.1-10
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• 2011

Our study is to verify validation of exercise effect that developing exercise and rehabilitation instrument using pneumatic actuators available rehabilitation and healthcare, while at the same time safer and more convenient for the user to select the desired exercise. Shares subject to the usual exercise is conducted in less than a week in the knee extension and flexion at the undergraduate level there is no more than 10 of the 20 patients were female. Subject performed knee exercise 3 set a day with 12times a set using fluid type exercise instrument and pneumatic exercise instrument that build in this study. Experiment has progressed in 4-weeks with 3-days a week. Our exercise load consist of two type. One is active exercise load with developed instrument in our study and the other one is passive exercise load with fluid instrument. Exercise program based on real-time muscle activation patterns and muscle activity before and after exercise by comparing the effects of exercise for rehabilitation has been verified. The results showed that muscular activity is higher in active exercise load than passive load, and improvement of muscle strength more increased too. Equipment more user-centered exercise more effectively exercise may enhance muscle strength was found. This study can adapt rehabilitation program and exercise for patient and weaker. Also our system can provide easily and convenient prescription of rehabilitation for expert related rehabilitation.

• Journal of the Institute of Electronics Engineers of Korea SC
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• v.46 no.4
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• pp.77-83
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• 2009

In this study, we investigated relationship of muscular activity in thigh muscle and knee joint angle from bicycle exercise. The EMG signals of 16 persons were measured from rectus femoris and vastus lateralis muscles. The experiment was performed in 5 steps according to saddle distance and 60RPM/200W loads were applied for 1 minute at each step. EMG activation of rectus femoris and vastus lateralis muscles and knee joint angle were recorded using surface EMG and motion analysis system, respectively. Experimental results of inter relationship between EMG activation of thigh muscles and knee joint angle showed high correlation from Step 1. The unified EMG activation of two muscles and knee joint angle showed negative correlation(-0.97).

• Journal of Korean Orthopaedic Sports Medicine
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• v.5 no.1
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• pp.45-49
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• 2006

목적: 자가 골-슬개건-골과 슬괵건을 이용한 전방 십자 인대 재건술의 5년 중기 추시 결과를 비교 분석하고자 한다. 대상 및 방법: 전방 십자 인대 재건술을 시행한 후 5년 이상 추시 관찰이 가능한 65예를 대상으로 하였고, 골-슬개건-골이 38예, 슬괵건이 27예였다. 술 후 평가는 Lysholm 점수, 관절 운동 범위, 대퇴부 중간 부위 둘레 길이, Lachman 검사, 축 이동 검사, KT 2000 관절 계측기를 시행하였고, 술 후 합병증을 평가하였다. 결과: Lysholm 점수는 골-슬개건-골군과 슬괵건국에서 각각 평균 91점, 94.2점으로 슬괵건군이 우수하였고, 대퇴부 중간 부위 둘레 길이는 건측에 비해 각각 평균 1.7cm, 1.3cm의 차이를 보였다. 양 군간에 관절 운동 범위, Lachman 검사, 축 이동 검사 및 KT 2000 관절 계측 결과는 통계적으로 유의한 차이가 없었으나, 술 후 합병증은 과도한 보행이나 운동 후 슬관절 동통이 골-슬개건-골군에서 7예, 슬괵건 군에서 4예 관찰되었고, 전방 슬관절 동통이 골-슬개건-골군에서 4예 관찰되어, 골-슬개건-골군에서 더 많이 발생하였다. 결론: 5년 중기 추시에서 자가 슬괵건군이 우수한 슬관절 기능, 적은 합병증 등 임상적으로 우수하였으나 장기 추시가 요할 것으로 사료된다.