수영 트랙 스타트 동작 시 양발 스탠스 유형에 따른 운동학적 요인 비교분석 (Kinematic Comparison Analysis According to Bipedal Stance in Swimming Track Start)

서지정보

· 발행기관 : 한국체육과학회
· 수록지 정보 : 한국체육과학회지 / 28권 / 2호 / 1151 ~ 1164페이지
· 저자명 : 오정환, 임승희, 신의수

초록

The purpose of this study was to kinematic comparison analysis according to square stance in swimming track start motion. The subjects of this study were adult male swimming players, and duration time, COM(center of mass) position, COM velocity, incidence angle and projection angle, distance of entering water were compared to analyze kinematics by square stance at the starting movement on the swimming track by 3D motion capture analysis. Based on the study results, the following conclusions were deducted. First, duration time by square stance at the starting movement on the swimming track showed the significant difference in P3 (p<.001). Upon post-hoc analysis results in P3, duration time of level 1 showed shorter than that of level 5, and lead time of level 2 showed shorter than that of level 4 and 5. In addition, statistically significant difference was found in total duration time upon the difference verification by levels (p<.05). Also, in post-hoc analysis results of total duration time, level 1 showed shorter than level 4. Second, lateral COM position did not show the significant difference by square stance at the starting movement on the swimming track. However, the least difference was found in level 2 and 3, while the greatest difference in level 1 and 5. With respect to anterior and posterior COM position, level 1 and 2 showed higher displacement than level 4 and 5 in E3. Vertical COM position did not show any significant difference. However, level 1 and 2 showed the lowest vertical COM position in E2 and E3, and level 4 showed the lowest in E4. Third, lateral COM velocity did not show any significant difference by square stance at starting movement on swimming track. However, anterior and posterior COM velocity showed the significant difference in E1 (p<.05). Also, upon the result of post-hoc analysis, level 1 and 2 showed faster anterior and posterior COM velocity than level 4 in E1, and statistical difference was found in E3 (p<.01). Upon the result of post-hoc analysis, level 1 and 2 showed faster anterior and posterior COM velocity than level 4 and 5. Significant difference of vertical COM　velocity was found in E1 (p<.01). Level 2 showed faster vertical COM velocity than level 4 in E1. Fourth, incidence angle by square stance at the starting movement on the swimming track did not show any significant difference. However, incidence angle was the biggest in level 2 and the least in level 4. Angle of projection angle showed the least angle in level 4 and the biggest in level 2. Fifth, distance of projection by square stance at the starting movement on the swimming track did not show the significant difference.
However, level 4 showed the longest distance of entering water while level 5 showed the shortest.

영어초록

The purpose of this study was to kinematic comparison analysis according to square stance in swimming track start motion. The subjects of this study were adult male swimming players, and duration time, COM(center of mass) position, COM velocity, incidence angle and projection angle, distance of entering water were compared to analyze kinematics by square stance at the starting movement on the swimming track by 3D motion capture analysis. Based on the study results, the following conclusions were deducted. First, duration time by square stance at the starting movement on the swimming track showed the significant difference in P3 (p<.001). Upon post-hoc analysis results in P3, duration time of level 1 showed shorter than that of level 5, and lead time of level 2 showed shorter than that of level 4 and 5. In addition, statistically significant difference was found in total duration time upon the difference verification by levels (p<.05). Also, in post-hoc analysis results of total duration time, level 1 showed shorter than level 4. Second, lateral COM position did not show the significant difference by square stance at the starting movement on the swimming track. However, the least difference was found in level 2 and 3, while the greatest difference in level 1 and 5. With respect to anterior and posterior COM position, level 1 and 2 showed higher displacement than level 4 and 5 in E3. Vertical COM position did not show any significant difference. However, level 1 and 2 showed the lowest vertical COM position in E2 and E3, and level 4 showed the lowest in E4. Third, lateral COM velocity did not show any significant difference by square stance at starting movement on swimming track. However, anterior and posterior COM velocity showed the significant difference in E1 (p<.05). Also, upon the result of post-hoc analysis, level 1 and 2 showed faster anterior and posterior COM velocity than level 4 in E1, and statistical difference was found in E3 (p<.01). Upon the result of post-hoc analysis, level 1 and 2 showed faster anterior and posterior COM velocity than level 4 and 5. Significant difference of vertical COM　velocity was found in E1 (p<.01). Level 2 showed faster vertical COM velocity than level 4 in E1. Fourth, incidence angle by square stance at the starting movement on the swimming track did not show any significant difference. However, incidence angle was the biggest in level 2 and the least in level 4. Angle of projection angle showed the least angle in level 4 and the biggest in level 2. Fifth, distance of projection by square stance at the starting movement on the swimming track did not show the significant difference.
However, level 4 showed the longest distance of entering water while level 5 showed the shortest.

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