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서국웅(Kook Woong Seo),정미라(Mi La Jeong) 한국체육교육학회 2000 한국체육교육학회지 Vol.4 No.2
The study is to find out the amplitude changes of electromyographic signals of four muscles of support limb according to the aerobic dance kick types(knee-up, long-kick, high-kick) and the speed(BYM 120, 140, 160)changes. To do this, We select 6 female aerobic dancers over 3 years career. $quot;This study is also to utilize the fundamental data for preventing usual injuries by comparing these muscle load rate. The result of this study is as follows 1. Exercise intensity show in turn by high-kick, long-kick, knee-up according to kick types in 13YM 120, 190, 160 of muscular conductivity value. 2. Muscle load rate show the constant in turn by gastrocnemius muscle, tibialis anterior muscle, vastus lateralis muscle, vastus medialis muscle without any relation Co kick types in BYM 120, 140, 1 EiO. 3. Gastrocnenuus muscle is the highest of muscular conductivity value and load rate.
발레의 1st Position 점프 동작 시 신발 유형에 따른 하지의 운동학적 비교분석
염창홍,박영훈,서국웅,Youm, Chang-Hong,Park, Young-Hoon,Seo, Kook-Woong 한국운동역학회 2003 한국운동역학회지 Vol.13 No.3
The purpose of this study was to investigate the height of jump, angle of the ankle and knee, the angular velocity of the ankle and knee between two types of ballet shoes during a jump in the 1st position. The subjects were 5 female ballet majors of university in Busan the majors who have been dancing ballet for six years on the average. The conclusions are as follows: 1. The height of jump had no significant difference between two types of ballet shoes, and then the average of the height of jump with point shoes group ($20.24{\pm}4.62\;cm$) was a little higher than ballet shoes group ($17.50{\pm}4.05\;cm$). 2. The angle of the ankle had no significant difference for all events between two types of ballet shoes. The minimum angle of ankle joint was represented to $54.36_{\circ}$ at the E1 of the left ankle angle of the ballet shoes and the maximum value was showed $155.43_{\circ}$ at the E3 of the right ankle angle of the point shoes. 3. The angle of the knee had no significant difference for all events between two types of ballet shoes. The minimum angle of knee joint was represented to $99.54_{\circ}$ at the E1 of the left knee angle of the ballet shoes and the maximum value was showed $174.25_{\circ}$ at the E3 of the right knee angle of the point shoes. 4. The ankle velocity of the ankle had no significant difference for all events between two types of ballet shoes. The minimum angular velocity of the ankle was represented to 4.35 deg/s at the maximum height(E3) of the point shoes and the maximum value was showed 597.81 deg/s at the take-off(E2) of the right ankle angle of the point shoes. 5. The angular velocity of the knee had significant difference between two types of ballet shoes at the event 1(p<.05). The minimum angular velocity of the hee was represented to -1.68 deg/s at the maximum height(E3) of the point shoes and the maximum value was showed 360.25 deg/s at the take-off(E2) of the left knee angle of the ballet shoes. The other events had no significant difference between two types of ballet shoes.
발레 숙련도에 따른 센터에서 Grand Battement Jeté á la seconde 동작의 운동학적 비교 분석
염창홍,박영훈,서국웅,양충모,Youm, Chang-Hong,Park, Young-Hoon,Seo, Kook-Woong,Yang, Chung-Mo 한국운동역학회 2004 한국운동역학회지 Vol.14 No.2
The purpose of this study was to investigate time of the phase, angle of the right ankle, knee, and hip joint, lateral angle of the trunk, mediolateral displacement of COM, and vertical displacement of COM between two groups while executing grand battement $jet{\acute{e}}$ $\acute{a}$ la seconde in a center exercise setting through 3D video analysis. The subjects participated in this study were skilled and unskilled 6 female ballet majors in Busan, respectively. The conclusions are as follows: 1. The time of the phase 2 was faster than P3. It shows a significant difference(p<.05) for P1 and P4 between skilled and unskilled groups 2. The angle of He right ankle joint has a significant difference(p<.05) at E4 between skilled and unskilled groups. The angle of the right knee joint has no significant difference at all events between skilled and unskilled groups. The angle of the right hip joint has a significant difference(p<.001) at E3 between skilled and unskilled groups. 3. The lateral angle of the trunk has a significant difference(p<.05) at E1 and at E5 between skilled and unskilled groups. The skilled group of the lateral angle of the trunk was lower than the unskilled group. However the skilled group's lateral angle of the trunk was bigger than the unskilled group at E3. It has significant difference(p<.001) at E3 between skilled and unskilled groups. 4. The mediolateral displacement of COM has no significant difference at all events between skilled and unskilled groups. The vertical displacement of COM has a significant difference(p<.01) at E3 between skilled and unskilled groups.