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이광진,황득수,진영안 대한골절학회 1991 대한골절학회지 Vol.4 No.1
The ankle is a complex weight-bearing joint and play an important role biomechanically. The injuries to the ankle joint complex include not only injuries that cause disruption of the bony architecture of the ankle joint but often significant ligamentous and soft tissue components. There is many study for ankle to exact diagnosis and treatment in order to anatomical reduction and stability. The author analysed 105 cases(102 patients) of ankle fracture which were admitted and treated in Orthopedic Department Chungnam National University Hospital from September 1985 to February 1990. The follwing results were obtained. l. According to classification, the most common fracture type was supinaton-external rotation type(33%) in Lauge-Hansen., type B (46%) in DanisWeber., type II unstable (50%) in Tile. 2. Among the three fracture classification, Lauge-Hansen classification is cumbersome and difficult to apply clinically because of complexity and variable fracture patterns but useful for hidden ligament injury. Danis-Weber classification is simple and easily applicated but not helpful for decision of the treatment methods. 3. According to Tile classification, bony avulsion fracture suggested posterior syndesmotic ligament complex injury was noted 26 cases (50%) in type II unstable with operative treatment. 4. Poor cases on clinical result were due to no achieving anatomical reduction and severe initial injury regardless of operative or conservative management.
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이광진,우기도 대한금속·재료학회 2011 대한금속·재료학회지 Vol.49 No.6
Pre-aging heat treatment after solution heat treatment (SHT) of Al-0.4 wt%Mg-1.2 wt%Si-0.1 wt%Mn alloy sheets for auto-bodies was carried out to investigate the effect of pre-aging and its conditions on the bake-hardening response. Mechanical properties were evaluated by a tensile and Vickers hardness test. Microstructural observation was also performed using a transmission electron microscope (TEM). It was revealed that pre-aging treatments play a great role in the bake-hardening response. In addition, it was found that the sphere-shaped nanosized clusters that can directly transit to the needle-shaped β” phase during the paint-bake process, not being dissolved into the matrix, are formed at 343 K. The result, reveals that the dominant factor of the bake-hardening response is the pre-aging temperature rather than the pre-aging time.
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이광진,이호성 대한운동학회 2018 아시아 운동학 학술지 Vol.20 No.1
PURPOSE The purpose of this study was to examine the effects of core stabilization exercise on the dynamic stability in young aged women wearing heeled shoes. METHODS Fourteen young aged women were divided into high heel group (HHG, n=7) and low heel group (LHG, n=7) with heel height. Core stabilization exercise was performed for 60 min (warm up 10min, exercise 40 min and cool down 10min), three times a week for 8 weeks. The dynamic stability was measured by Y-Balance test (Anterior; Ant, posteriolateral; PL, posteriomedial; PM, composite score; CS). RESULTS The dynamic stability was significant difference between groups in both PL and CS at before exercise. The dynamic stability showed also significant improvement in both HHG (Ant, PL, PM, CS) and LHG (PL) at after exercise. CONCLUSIONS We demonstrated that wearing heeled shoes reduce dynamic stability, while core stabilization exercise improve dynamic stability.
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