유소년의 수직점프 시 연령과 성별에 따른 운동역학적 분석 연구 (Kinematic Analysis According to Age and Gender During Vertical Jump in Youth)

서지정보

· 발행기관 : 한국리듬운동학회
· 수록지 정보 : 한국리듬운동학회지 / 17권 / 1호 / 51 ~ 60페이지
· 저자명 : 김미선, 이승훈

초록

The purpose of this study was to investigate the ground reaction force characteristics according to age and gender of youth during vertical jumps. 65 youth participated in this study. Participants were asked to perform three vertical jumps.
One force plate were used to measure kinematic data. Sampling was set to 1000Hz. Ground reaction force kinematic variables include time variables (duration of major negative impulse, duration of major positive impulse, duration from minimum to maximum force, duration from maximum force to takeoff, duration of takeoff phase, flying time), and force variables (peak negative force, peak positive force, landing force), and impulse variables (negative impulse, positive impulse) were calculated using the python program. Two-way ANOVA was performed to verify differences in kinematic variables. In the time variable, Duration of major negative impulse showed a significant effect for the age, and Duration from minimum to maximum force showed a significant effect on gender. In force variables, peak negative force, peak positive force, and landing force all showed significant effects for the age, but only peak negative force and peak positive force showed significant effects on gender. In the impulse variable, negative impulse showed significant effects for both age and gender. In older grades, it is believed that there is a need to strengthen lower limb muscles due to the significant energy loss that occurs in the process of converting elastic energy into kinetic energy. It is believed that lower grades will need exercises to increase lower extremity joint movement, joint stability, and proprioception.

영어초록

The purpose of this study was to investigate the ground reaction force characteristics according to age and gender of youth during vertical jumps. 65 youth participated in this study. Participants were asked to perform three vertical jumps.
One force plate were used to measure kinematic data. Sampling was set to 1000Hz. Ground reaction force kinematic variables include time variables (duration of major negative impulse, duration of major positive impulse, duration from minimum to maximum force, duration from maximum force to takeoff, duration of takeoff phase, flying time), and force variables (peak negative force, peak positive force, landing force), and impulse variables (negative impulse, positive impulse) were calculated using the python program. Two-way ANOVA was performed to verify differences in kinematic variables. In the time variable, Duration of major negative impulse showed a significant effect for the age, and Duration from minimum to maximum force showed a significant effect on gender. In force variables, peak negative force, peak positive force, and landing force all showed significant effects for the age, but only peak negative force and peak positive force showed significant effects on gender. In the impulse variable, negative impulse showed significant effects for both age and gender. In older grades, it is believed that there is a need to strengthen lower limb muscles due to the significant energy loss that occurs in the process of converting elastic energy into kinetic energy. It is believed that lower grades will need exercises to increase lower extremity joint movement, joint stability, and proprioception.

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