Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Effect of Whole Body Vibration Training in Drop Landing Jump

전신진동운동이 드랍랜딩점프 동작에 미치는 영향

  • 홍수연 ((주)인터오션) ;
  • 장영관 (강원대학교 산업경영공학과) ;
  • 김진현 (제주국제대학교 스포츠재활학과)
  • Received : 2018.02.01
  • Accepted : 2018.03.09
  • Published : 2018.03.31
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Abstract

Objective: This study was conducted to investigate the effects of WBVE on biomechanical factor analysis of drop landing jumps before and after a four week training program. Methods: Participants were divided into two group: VEG (n=5, age: $25.7{\pm}2.3yrs$, height: $170{\pm}7.6cm$, weight: $69.3{\pm}8.3kg$) and OEG (n=5, age: $24.6{\pm}3.4yrs$, height: $164{\pm}4.9cm$, weight: $58.8{\pm}9.2kg$). Ten infrared cameras (Vicon, UK) with a sampling rate of 100 Hz were used in two GRF measurement systems (AMTI, USA). Results: The variability of the center of mass was largest at the falling phase, and there was a great risk of injury when landing after the jump. Second, the jumping heights of the VEG (vibration exercise group) were higher than those of the OEG (only exercise group), regardless of training period. Third, there were significant differences in the hip joint P1 (flexion) and knee joint P2 (extension) between the exercise groups after 4 weeks of training. However, there were no significant differences among training periods or phases. Conclusion: regardless of training periods, the VEG showed increased jump height compared with the OEG, but the consistency between the jump height and the lower joint power could not be determined.

연구목적 본 연구의 목적은 전신진동운동(whole body vibration exercise)이 드랍랜딩점프(drop landing jump) 동작에 미치는 영향을 규명하는 것으로 진동운동그룹(n=5, VEG, Vibration Exercise Group)과 단순운동그룹(n=5, OEG, Only Exercise Group)을 4주 동안 트레이닝 시킨 후 운동 전과 운동 4주 후 변화를 비교 분석하였다. 실험방법 3차원 영상 데이터는 10개의 적외선카메라(Vicon, UK)를 샘플링 율, 100 Hz.를 사용하여 획득하였으며, 하지 관절의 파워는 2대의 지면반력기(AMTI, USA)를 샘플링 율 1000Hz.로 데이터를 획득 하였다. 연구결과 첫째, 무게중심의 변동성은 하강국면에서 가장 크게 나타나 점프 후 착지 시 상해위험성이 큰 것으로 나타났다. 둘째, 진동운동그룹은 훈련기간에 관계없이 단순운동그룹보다 점프높이가 증가하였다. 셋째, 운동그룹간의 관절파워가 4주 훈련 후 엉덩관절 P1(굴곡)과 무릎관절 P2(신전)에서 통계적으로 유의한 차이를 보였으나, 훈련기간에 따른 하지의 관절파워는 모든 국면과 운동그룹에 관계없이 통계적으로 유의한 차이를 보이지 않았다. 결론 훈련기간에 관계없이 진동과 운동을 병행한 진동운동그룹이 운동만을 수행한 단순운동그룹보다 점프높이에 증가를 가져왔으나 점프높이와 하지의 관절 파워와의 일관성 규명할 수 없었다.

Keywords

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