• Journal of Biomedical Engineering Research
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• v.22 no.2
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• pp.211-216
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• 2001

본 연구에서는 상지의 동적 운동시, 상지의 주요 구동요소로서 주요 근육인 전박부 굴곡근, 신전근 및 이두박근 및 삼두박근의 근육들의 근전도를 측정하고, 이와 함께 동적 운동시의 주관절에 발생하는 관절모멘트, 근력, 근전도의 연관관계를 정량적으로 규명함으로써, 해당하는 근육의 근전도만의 측정으로 동적운동 시 필요한 근력의 정량적인 예상을 가능케 하는 수학적 모델을 제시하고자 하였다. 지금까지의 기존 연구는 근력의 등척성 수축운동에서의 근력 예측으로서, 실제 일상 생활에서 발생하는 인체내의 동적운동 상황에서의 근력을 산정 하는데 있어서 제한적 한계를 갖고 있었다. 따라서 본 연구는 실시간 동적 운동시 측정되는 근전도를 이용하여 해당하는 근육의 근력을 예측할 수 있는 수학적 모델을 제시하고자 하였다.

• Korean Journal of Applied Biomechanics
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• v.20 no.2
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• pp.117-127
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• 2010

The axes of upper forearm coordinate system have been considered as principal axis of each segment which was component of elbow joint. The purpose of this study was to verify whether the mean direction(principal axis) of instantaneous axes of rotation for pure flexion/extension motion coincided with the flexion/extension axis of upper forearm coordinate system. The same procedure was done for pronation/supination motion. Furthermore, it was tested indirectly that there was an interaction effect between the two rotational motions. The results showed that most segment coordinate axes statistically were not consistent with the mean directions of flexion/extension and pronation/supination axes of rotation. From the results, it would be concluded that the ISB coordinate systems was proved to be a little valid for human movement analysis. There also was an effect of pronation/supination angles on flexion/extension motion.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.2 no.1
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• pp.21-32
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• 1996

To compare the treatment effects of back exercise on functional status, spinal mobility, SLR, pain severity, and treatment results satisfaction, and to determine whether spinal exercises during the low back pain reduces recurrent episodes of back pain. 1. Flexion and extension exercise groups did not differ in any outcome over 4weeks. After 1week, both exercise groups had reduced disability score, a higher proportion returning to work, and fewer subjects with a positive SLR compared with the control group. 2. There was no difference among groups regarding recurrence of low back pain after 6~12 months. 3. There was no difference for any outcomes between the flexion or extension groups. However, either exercise was slightly more effective than no exercise when patients with low back pain were treated.

• The Journal of Korean Academy of Orthopedic Manual Physical Therapy
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• v.15 no.2
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• pp.35-43
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• 2009

Purpose : The purpose of this study was to measure the change of strength of trunk flexion and extension on abdominal and back muscles. Methods : Each taping group 1(n=14), taping group 2(n=14), taping group 3(n=14) and control group(n=15) were measured a muscle strength by Biodex at first test, second test, third test and forth test in 3 days. Results : The strength of trunk flexion and extension was significantly different among the experimental groups (p<.05). It also shows that significant increasing of muscle strength at 48 hours after application of taping (p<.05). Conclusion : In conclusion, we were found that taping technique base on taping type show immediately assistance of muscle strength and enduring effect for 48 hours.

• Journal of Korean Physical Therapy Science
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• v.1 no.2
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• pp.215-222
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• 1994

The aim of this study was to determine the normative strength value for cervical flexors, extensors and right lateral flexors, left lateral flexors to provide a guideline for rehabilitation of cervical radiculopathy patients. The isometric evaluation of cervical flexors, extensors and lateral flexors by using the Hand-held dynamometer was performed on 50 males and 50 females. The result were as follows. The average cervical muscle strength were 5.7 kg in flexor. 10.5 kg in extensors, and 6.6 kg in right lateral flexor, 6.5 kg in left lateral flexor. There was statistically significant difference between the cervical flexors and extensors(p<0.01) but no significant difference between right lateral flexor and left lateral flexor. There was statistically significant difference between male and female(p<0.01). When one of cervical muscle was strong, also the others did in subjects(p<0.01) and the body weight was significantly releated to the cervical muscle strength(p<0.01).

• The Journal of the Korean bone and joint tumor society
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• v.9 no.1
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• pp.52-60
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• 2003

Purpose: To analyse their end results and also to differentiate the single or multiple giant cell tumor(GCT) of tendon sheath in hand. Materials & Methods: Total 21 cases with GCT of tendon sheath in hand were treated surgically and analyzed their end results with clinically, radiologically and pathologically to allowed for average 16 months after surgical excision. Results: The finger flexor tendons, especially on index and ring finger, involving distal interphalangeal joint and mid-phalanges in fourth decades (average age of 47 years old) were frequently involved, and the mass was not exceed than 2 cm in size, fixed on tendon sheath with rubbery hard tenderness but rare bony involvements except 4 cases of bony erosion and cortical perforation. The three cases with multiple GCT of hand was also combined with familial hypercholesterolemia, and are commonly involved the extensor tendons as well as achilles tendons bilaterally, treated with partial excision because of multiplicity. Average 16 months after surgical excision for single GCT cases was followed and showed the recurrence in 3 cases(3/18,16.7%), treated with wide excision. The single and multifocal GCT are similar in pathologic changes but different soft tissue tumors in their pathogenesis, treatment and prognosis. Conclusion: Incomplete excision of GCT of tendon sheath in hand are thought to be the cause of recurrence, especially in cases with incomplete lesional excision, in multilobular and bony involvement etc. So careful wide excision is necessary to prevent the recurrence.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.10 no.3
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• pp.207-214
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• 2016

The aim of this study was to evaluate Influence on intra-limb coordination in individuals wearing knee brace during walking. Seven healthy male adults ($32.3{\pm}2.7$ years old, $175.2{\pm}3.8cm$, $76.2{\pm}8.7kg$) participated. They wore knee brace or didn't wear any knee brace and were asked to walk along a 10 m long walkway. Spatiotemporal parameters, angles of the lower limbs, and intra-limb continuous relative phase (CRP) were measured and calculated. No differences of spatiotemporal parameters were shown (all p > 0.05). There were no changes in the angle and its range of motion (ROM) in the hip for the subjects as wearing knee brace, while ROM ($65.5{\pm}3.7^{\circ}$ vs. $60.5{\pm}3.5^{\circ}$, p < 0.05) of the angle and maximum flexion angles (stance: $31.9{\pm}4.6$ vs. $25.6{\pm}5.5$, swing: $76.7{\pm}3.1$ vs. $68.9{\pm}3.4$, all p < 0.05) in the knee significantly decreased. No changes in ROM of angle in the ankle were shown, whereas maximum dorsiflexion decreased ($22.4{\pm}2.6$ vs. $19.2{\pm}2.1$, p < 0.05) and maximum plantarflexion increased ($9.5{\pm}3.0$ vs. $15.7{\pm}2.2$, p<0.05). There were no changes in most of CRP between joints. CRP between the hip and knee joints decreased ($93.0{\pm}7.8$ vs, $84.7{\pm}4.9$, p < 0.05). Most of CRP standard deviation increased (between the hip and ankle joint during swing: $25.1{\pm}6.7$ vs. $32.4{\pm}1.9$, between the knee and ankle joint during stance: $46.0{\pm}12.9$ vs. $80.1{\pm}31.1$, between the knee and ankle joint during swing: $34.5{\pm}4.1$ vs. $37.6{\pm}3.1$, all p < 0.05). These results indicated that wearing knee brace affected joint angle and intra-limb coordination, but less affected gait features.

• Journal of the Korean Society of Radiology
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• v.7 no.3
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• pp.205-211
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• 2013

This study is for patients who are diagnosed with Frozen Shoulder, Korean traditional osteopath (KTO) was applied. The reduction of pain in patients with significant pain relief who studied how to increase the range of motion of the shoulder joint in order to additionally confirm. Consists of a total of 14 subjects, divided into two groups of seven experimental groups and seven control groups was studied. KTO seven patients was performed a total of 10 times seven patients was not performed. Look at each item, if the range of motion of the shoulder joint, The group looked at the changes in the operation value when applying the KTO Flexion (7.33), Extension (10.00), Abduction (8.76), Adduction (9.05), external rotation (8.10), internal rotation (10.00) was changed. The group looked at the changes in the operation value when did not apply the KTO Flexion (7.33), Extension (10.00), Abduction (8.76), Adduction (9.05), external rotation (8.10), internal rotation (10.00) was changed. That you can bring an increase in range of motion of the shoulder Frozen Shoulder Korean traditional osteopathic treatment to patients.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.3 no.1
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• pp.8-14
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• 2010

Purpose: We wished to evaluate the clinical usefulness of ultrasound, when loose body is palpated and is shown radiographically in knee. Material and Methods: Twenty-five knees of twenty-two patients with loose body in knee radiographically from March, 2007 to July, 2009 were involved in this study, there were 8 males and 14 females, there were 11 right knees, 8 left knees and 3 both knees, the average age was 56.3 years (range, 32~76 years). The location of loose bodies were 13 cases at suprapatella pouch, 1 case at infrapatella anterior compartment and 11 cases at posterior compartment. In loose bodies of suprapatella pouch, we examined the mobility of loose bodies longitudinally with ultrasound placed at superior patella pole while flexing and extending the knee. In loose bodies of infrapatella anterior and posterior compartment, we examined the mobility of loose bodies longitudinally and transversely with ultrasound while flexing and extending the knee. Results: All cases of suprapatella pouch and infrapatella anterior compartment were diagnosed to movable loose bodies and were removed surgically, all cases of posterior compartment were diagnosed to immovable loose bodies and were not removed. Conclusion: When we determined the surgical removal according to mobility of loose body in knee, ultrasound may be helpful clinically.

• 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.