학술논문
창 던지기 릴리즈 동작 시 운동역학적 변인과 기록 간의 상관관계 분석
Correlation analysis between kinetic variables and records in release of Javelin
Correlation analysis between kinetic variables and records in release of Javelin
Document Type
Article
Author
박재명 / Jae Myoung Park; 양진주 / Jin Joo Yang; 이영선 / Young Sun Lee; 김지현 / Ji Hyeon Kim; 박종철 / Jong Chul Park
Source
스포츠사이언스 / Sport Science. Dec 31, 2022 40(3):493
Subject
Language
Korean
ISSN
2093-3363
Abstract
본 연구는 창던지기 선수들의 릴리즈 동작의 남녀 차이를 비교분석하고 기록과 주요 근육의 상관관계분석을 통해, 과학적이고 정량적인 자료를 재공하고, 릴리즈 동작에서의 기술 향상을 도모하는데 그 목적이 있다. 연구대상은 서울소재의 K대학교에 재학 중인 창 던지기 선수 6명(남 : 나이 22.3±1.2 years, 신장: 179.3±5.0 cm, 체중: 90.3±5.6 kg; 여 : 나이 22.0±0.8 years, 신장: 171.3±4.5 cm, 체중: 71.0±2.9 kg)을 선정하였으며, 릴리즈 동작시 무릎관절의 각도와 근 활성도를 측정하기 위하여 3회의 창던지기 동작을 실시하였다. 이때, 무릎관절 각도와 근활성도를 측정하기 위하여 초고속 카메라 1 대와 EMG system 5채널을 이용하여 자료를 취득하였으며, 얻어진 데이터는 통계프로그램을 통하여 독립표본 t-검정과 상관관계를 분석하였다. 연구 결과, 성별에 따른 기록에서는 차이가 나타났으나(p< .05), 최대 무릎 굴곡각도에서는 유의한 차이가 나타나지 않았다(p >.05). 기록과 근 활성도의 상관을 분석한 결과, 릴리즈 구간에서의 평균 근 활성도가 어깨세모근과 큰가슴근이 정적 상관을 나타냈으며(p<.05), 최대 근 활성도에서는 큰가슴근이 정적 상관을 나타냈다(p<.05). 하지만 최대 무릎 굴곡각도와 근 활성도는 상관관계가 나타나지 않았다. 본 연구의 이러한 결과는 상체 근육과 기록의 관계를 확인할 수 있었으며, 엘리트 선수들의 효과적인 상체사용에 대한 정보를 제공할 수 있을 것으로 생각된다.
The purpose of this study is to compare and analyze gender differences in release of javelin throwers, release data through records and correlation analysis of major muscles, and improve their skills. Six javelin althletes (male: 22.3±1.2 years, height: 179.3±5.0 cm, weight: 90.3±5.6 kg, female: 22.0±0.8 years, height: 171.3±4.5 cm, weight: 71.0±2.9 kg) were selected. In order to measure maximum knee joint flexion angle and muscle activity, the data were obtained using a high-speed camera and channel 5 of EMG system, and the obtained data were analyzed for independent t-test and correlation through a statistical program. As a result of the study, there was a difference in gender records (p< .05), but there was no significant difference in maximum knee flexion angle (p >.05). Analysis of the correlation between records and muscle activity showed that the AD, PM average muscle activity in the release and PM maximum muscle activity shows positive correlation(p< .05). However, the maximum knee flexion angle and muscle activity were not correlated(p >.05). These results from this study can confirm the relationship between upper body muscles and records and can provide information on the effective upper body use of elite athletes.
The purpose of this study is to compare and analyze gender differences in release of javelin throwers, release data through records and correlation analysis of major muscles, and improve their skills. Six javelin althletes (male: 22.3±1.2 years, height: 179.3±5.0 cm, weight: 90.3±5.6 kg, female: 22.0±0.8 years, height: 171.3±4.5 cm, weight: 71.0±2.9 kg) were selected. In order to measure maximum knee joint flexion angle and muscle activity, the data were obtained using a high-speed camera and channel 5 of EMG system, and the obtained data were analyzed for independent t-test and correlation through a statistical program. As a result of the study, there was a difference in gender records (p< .05), but there was no significant difference in maximum knee flexion angle (p >.05). Analysis of the correlation between records and muscle activity showed that the AD, PM average muscle activity in the release and PM maximum muscle activity shows positive correlation(p< .05). However, the maximum knee flexion angle and muscle activity were not correlated(p >.05). These results from this study can confirm the relationship between upper body muscles and records and can provide information on the effective upper body use of elite athletes.