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학제간연구 과학기술학 뇌인지과학 기술정책 기타 복합학

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논문 기본 정보

자료유형
학술저널
저자정보
저널정보
한국사회체육학회 한국사회체육학회지 한국사회체육학회지 제41권 제2호
발행연도
2010.8
수록면
763 - 776 (14page)
DOI
10.51979/KSSLS.2010.08.41.763

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초록· 키워드

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The purpose of this study is to examine the alignments of the body joints while taking a spin-kick move with a total of 8 test subjects. The test subjects were composed of 4 registered female university Taekwondo athletes with Korean Taekwondo Association and 4 other athletes with symptoms of waist pain. Also, we would examine the effects of the motor variants of the lower limbs while taking the moves by the contraction of the waist extensor muscles in a scientific way. 1. The total elapsed time of taking the moves in A group (Normal) was 0.288±0.028 sec., while B group`s lapsed time was 0.305±0.016 sec., indicating higher speeds in A group. The differences of the elapsed times in the two groups appeared to be statistically significant. (p<0.05) 2. In the spin-kick events, A Group (Normal) and B Group (CLBPI) did not have significant differences in the angular displacements of the hip joints and knee joints. But the angular displacements of the ankle joints showed significant differences in MKA. (p<0.05) 3. In the spin-kick events of the two groups the displacement of the body center in four directions (left, right, up, down) did not show any statistically significant differences. 4. In the spin-kick events of A group (Normal) and B group (CLBPI) the angular velocity of the hip joints appeared higher with TOL and MKA when the move was taken in a stand-still position, but there was not a significance to be assured. However, the changes in the angular velocity of the knee joints did have some statistically significant difference in TOL. (p<0.01) 5. The muscular strength at the waist extensor of A group (Normal) was 149.80±57.61, while B group (CLBPI) marked 112.44±21.70, making a significant difference between the two groups. (p<.002) 6. No matter how great the muscular strength and stamina of a Taekwondo athlete might be, if there is a weakening with the errector spinae, it turned out to significantly affect the spinning and bending of the lower limbs (waist), of which an extremely fast initial bending is required. Therefore, the rehabilitation of the athletes must precede in order for the enhancement of the performance of the athletes at the matches. A further study to analyze the correlations between the speed of the kicks and the muscular strength of the waist extensor after the muscular training of the waist extensor on the athletes with waist pain symptoms is therefore required. Finally, in performing a spin-kick move, we concluded that the contraction of the waist extensor did have significant effects upon the motor scientific variants of the lower limbs. That is, in order to gain more speed in the kicking moves, the statue of the body should firmly fixed by the muscular strength of the muscles surrounding the spine, leading to more precise, and therefore, faster movements. Further studies will be made with the kicking moves, on the efficacy of the strengthening programs for the waist extensors and changes in the extensor muscles thereby, as well as the speed of the kicks.
#Taekwondo #spin-kick #waist extensor muscle

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