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케틀벨 스윙과 덤벨 스쿼트 동작 시 20대 남자 대학생의 둔부 근육 활성도 비교
여상준 ( Sang-jun Yeo ),박기덕 ( Gi Duck Park ) 한국발육발달학회 2016 한국발육발달학회지 Vol.24 No.3
The purpose of this study tried to identify what muscles show the most effective muscle activity through activity differences in each muscle and Kettlebell swing known to be efficient for strengthening the lower limb leg by measuring and comparing muscle activities of lower limb muscles, including hip muscles, while performing Kettlebell swing. A total of 24 healthy boy students were selected as subjects of this study, who had no pain nor surgical history of the knee or hip. Then, they were asked to perform Kettlebell swing, 3 sets of 5 times at 50% of 1RM. The results of this study showed that the average muscle activity and the maximum muscle activity of Biceps femoris, gluteus maximus, and gluteus medius made a statistically significant difference during Kettlebell swing (p<.001). These results are thought to be provided as basic materials for the development of programs for effectively strengthening low limb muscles.
케틀벨 스윙과 런지 동작 시 20대 남성 하지 근 활성도 비교
여상준(Yeo, Sang-Jun),윤성덕(Yoon, Seong-Deok),박기덕(Park, Gi-Duck) 한국체육과학회 2016 한국체육과학회지 Vol.25 No.5
The purpose of this study tried to identify what muscles show the most effective muscle activity through activity differences in each muscle and Kettlebell swing and Lunge known to be efficient for strengthening the lower limb leg by measuring and comparing muscle activities of lower limb muscles, including hip muscles, while performing Kettlebell swing and Lunge. A total of 24 healthy boy students were selected as subjects of this study, who had no pain nor surgical history of the knee or hip. Then, they were asked to perform Kettlebell swing and Lunge, 3 sets of 5 times at 50% of 1RM. The results of this study showed that the average muscle activity and the maximum muscle activity of Biceps femoris, gluteus maximus(p<.001), and gluteus medius made a statistically significant difference during Kettlebell swing (p<.001). These results are thought to be provided as basic materials for the development of programs for effectively strengthening low limb muscles.
여상준,박승원,김영백,황성남,최덕영,석종식,정동규,민병국,Yeo, Sang-Jun,Park, Seung-Won,Kim, Young-Baeg,Hwang, Sung-Nam,Choi, Duck-Young,Suk, Jong-Sik,Chung, Dong-Kue,Min, Byung-Kook 대한신경외과학회 2000 Journal of Korean neurosurgical society Vol.29 No.11
Objectives : Transpedicular screw fixation has become an important method for internal fixation in variety of disorders. However, acceleration of degeneration at the adjacent segment in any follow. The goal of this study is to review the change of motion ranges of vertebral joints adjacent to fused level in lumbar spine. Methods : This study consists of 22 patients with degenerative spinal instability. Treatment of spinal instability includes posterior fusion with transpedicular screw fixation or transpedicular screw fixation with posterior lumbar interbody fusion. The flexion-extension angle(FEA) was measured from dynamic views of lumbar spine taken both at preoperative and post operative period. Results : The FEA of upper vertebral joint adjacent(FEA-u) to a fused L4-5 level was increased(p=0.010). The FEA-u was increased in case of L5-S1 fusion(p=0.025). The change of FEA-u in case of L5-S1 fusion was greater than that in L4-5 fusion(p=0.013). Conclusion : After L4-5 fusion, there seems to be more meaningful increase in FEA of L3-4 than that of L5-S1. The reason may be due to the damage of L3-4 facet joints during the operation, the other possible explanation may be the anatomical stability of L5-S1 vertebral joint. The change of FEA-u of L5-S1 fusion is increased more than that of L4-5 fusion. Because there are compensations in the adjacent vertebrae both above and below the fused L4-5, the compensatory motion in FEA-u of L5-S1 fusion was greater than that of the L4-5 fusion.
강석형 ( Suk Hyung Kang ),여상준 ( Sang Jun Yeo ),박승원 ( Seung Won Park ),황성남 ( Sung Nam Hwang ),민병국 ( Byung Kook Min ) 대한뇌종양학회 2003 대한뇌종양학회지 Vol.2 No.2
Intracranial germ cell tumors are rare lesions that account for 0.3 to 3.4% of all intracranial tumors. Although pure forms are rare, intracranial germ cell tumors are classified into five types:germinomas, teratomas, embryonal carcinomas, endodermal sinus tumors and choriocarcinomas. Teratomas are embryonal neoplasms composed of tissues that are derived from three germinal layers, the endoderm, mesoderm, and ectoderm. They may be solid or cystic and are classified histologically as mature, immature, and malignant. Intracranial teratomas have a predilection for the supratentorial and midline sites, especially pineal area. These are arise commonly in the neonatal period. Advances in neuroradiology and microsurgical techniques now make early diagnosis and successful treatment in many of these patients. We present a rare case of malignant teratoma in suprasellar region of a young boy. A complete excision of the tumor was achieved by pterional approach. Histological diagnosis of the tumor was teratoma with malignant components. The management, pathologic feature and clinical course of this unusual malignancy are discussed with a review of the literatures.