DOI QR코드

DOI QR Code

The Effect of snatch technique improvement for men weightlifter of feedback support through quantity analysis by periods

주기적 정성적분석을 통한 훈련목표 제공이 남자 역도 인상기술 향상에 미치는 영향

  • Published : 2004.08.30

Abstract

The purpose of this study is searching for technical merits and demerits of each weight lifting player through qualitative motion analysis system. Moreover, It is also analysis the repeating the establishment of exercise purpose and studying for the effect of the field adaptation. The subject of this study was five male weight lifting players who have been engaged in Korean Delegation Team. The institution of exercise target was made through two times qualitative analysis and the result of studying for the effect of the field adaptation was produced before offering feedback. Moreover, two time analysis added after offering feedback. All analysis was based on 2-D visual analysis. The results of this study are as follows: 1. Maximal barbell moving speed in starting phase was decreased after offering feedback. This result implies advancement of technical skills after offering feedback. 2. From starting posture to 앉아받기, forward and backward moving distance of hip joint was decreased after offering feedback in all subjects. This result represents advancement of technical skills after offering feedback. 3. In terms of pull phase, forward and backward moving distance of hip and shoulder joint was decreased after offering feedback in all subjects. This result represents advancement of technical skills after offering feedback. 4. In terms of pull phase, the difference of horizontal value of coordinates was decreased after offering feedback in all subjects. This result represents advancement of technical skills after offering feedback. 5. In terms of pull phase, the motion range of hip joint was decreased after offering feedback in three of five subjects and this represents advancement of technical skills after offering feedback. However, the rest of them were not variable or narrow decreasing. This result represents that feedback system could not brought tremendous effects. 6. From apex point of barbell to 앉아받기, the difference of barbell height was decreased after offering feedback in three of five subjects and this represents advancement of technical skills after offering feedback. However, the rest of them weren't variable or narrow increasing. This result represents that feedback system could not brought tremendous effects. 7. In terms of last-pull phase, the angular velocity of knee joint was increased after offering feedback in four of five subjects and this represents advancement of technical skills after offering feedback. However, the rest of them, only one subject, decreased. This result represents that feedback system could not brought tremendous effects. 8. In terms of last-pull, the conversional tendency of maximal extension to flextion came out all but simultaneously without offering feedback in four of five subjects. This is well-performed technique. Only one subject, however, could not use power effectively because the fact that his maximal extension came out in serial, from ankle to knee and waist means dispersion of power. In addition to, after offering feedback, only one subject made increasing the maximal extension of knee in last-pull and this result represents advancement of skills after offering feedback. However, the rest of them could not make meaningful development after offering feedback. 9. It might be assumed that searching for technical merits and demerits of each weight lifting player through qualitative motion analysis system could improve player's skill.

Keywords

References

  1. 문영진, (2001). 역도 엘리트 선수들의 인상기술 운동학적 분석. 성균관 대학교 스포츠과학논집, 2001년도 6호
  2. 문영진, (2002). 역도 인상동작의 경기력 향상모델 연구. 서울대학교 박사학위 논문
  3. 문영진, (2001). 우수 역도선수들의 인상기술 특성 분석. 한국체육학회지, 2001, 제40권 제 2호.
  4. 예종이, (1994) 바벨 인상동작시 바의 인체의 중심변화에 대한 운동학적 분석. 세종대학교 박사학위 논문
  5. 조석희, (1992). 역도경기 인상 동작 연구. 1급 경기지도자 수료논문
  6. 주명덕, (1991) 역도경기의 인상동작에 대한 생체역학적 연구. 서울대학교 박사학위 논문

Cited by

  1. Kinematic Analysis of Jerk Motion during Successful and Failed Trials of a Male Weight lifter -Case Study of an Olympic Gold Medalist- vol.19, pp.4, 2009, https://doi.org/10.5103/KJSB.2009.19.4.739