역도 인상 동작 시 중량 증가에 따른 하지근육의 길이 및 수축 속도 변화
The Changes in Length and Contraction Velocity of Lower Extremity Muscles with Increasing Weight during Snatch
0
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
[목적] 본 연구의 목적은 역도 인상동작 시 중량 증가와 하지근육의 길이 변화를 관찰하여 주동근을 확인하고 근 수축 속도를 분석을 통하여 빠른 근 수축이 필요한 근육을 밝히는 것이다. [방법] 연구대상자는 국가대표 역도선수 10명으로 이들의 평균 연령은 29±3.84 yrs, 체중 71.3±16.04 kg, 신장 1.63±0.07 m, 인상 최고기록 128±36.30 kg이다. 실험은 개인 최고기록의 70%, 80%, 90% 중량으로 인상 동작을 수행하는 동안 동작분석을 실시하였다. 분석 변인은 근 길이와 근 수축 속도이며 생체역학 모델링에 의하여 산출하였다. 통계처리는 바벨 중량 증가(최고기록의 70%, 80%, 90%)와 근육에 따른 종속변인(하지 각도, 각속도, 근육의 길이, 수축 속도)의 차이를 분석하기 위하여 반복측정 이원분산분석(repeated measure with one-way ANOVA)을 실시하였다. [결과] 연구결과에 의하면 중량 증가에 따른 하지 각도 이동범위, 최대 신전 각속도, 근 길이 차이는 나타나지 않았다. 하지만 근육 간 길이 비교에서는 대퇴 근육에 해당하는 내측광근, 외측광근, 대퇴이두근, 대퇴직근의 길이 차이가 다른 근육 길이 차이 보다 높아 주동근으로 예상된다. 인상 동작 시 빠르게 동원되어야 하는 근육을 확인하기 위해 수행한 근 수축 속도 분석한 결과에 의하면, 대퇴직근, 내측광근, 외측광근, 대퇴이두근이 그 대상으로 나타났다. [결론] 인상동작에서 주동근은 대퇴 주변의 근육이고 대퇴이두근과 대내전근의 동시수축은 경기력 향상에 기여할 것이다.
Abstract
[Purpose] The purpose of this study was to identify the lower extremity muscles length change according to the increase of the weight during snatch. Also, through the muscle contraction velocity analysis, it is necessary to identify muscles that require rapid muscle contraction. [Methods] The subjects were 10 national weight-lifters. Their mean age was 29 ± 3.84 yrs, body weight 71.3 ± 16.04 kg, height 1.63 ± 0.07 m, and the highest recorded height 128 ± 36.30 kg. Experiments were performed during the snatch to 70%, 80%, and 90% of the individual highest records. The analysis variables were the lower extremity angle, angular velocity, muscle length and muscle contraction velocity and were calculated by biomechanical modeling. Statistical analysis was performed with a repeated measure with one-way ANOVA to analyze the difference between the increase weight (70%, 80%, 90% of peak) and the dependent variable (angel, angular velocity, muscle length and muscle contraction velocity). [Results] According to the results of the study, there was no statistical difference in angle, angular velocity and muscle length with increasing weight. However, in the comparison of the muscle length, muscle length of the vastus medialis, vastus lateralis, biceps femoris, rectus femoris were statistically higher than other muscles. Also muscle contraction velocity of the rectus femoris, biceps femoris, vastus medialis, vastus lateralis, rectus femoris were statistically higher than other muscles. [Conclusion] In the snatch, the dominant muscles were the muscles around the femur, and the co-contraction of biceps femoris and great adductor muscles would contribute to improve the performance.
참고문헌 (18)
- Cappozzo, A., "Surface-Marker Cluster Design for 3-D Bone Movement Reconstruction", IEEE Transactions on Biomedical Engineering, 44(12), pp.1165~1174 (1997)
- Caterisano, A., "The effect of back squat depth on the EMG activity of 4 superficial hip and thigh muscles", The Journal of Strength & Conditioning Research, 16(3), pp.428~432 (2002)
- Collins, T. D., "A six degrees-of-freedom marker set for gait analysis : repeatability and comparison with a modified Helen Hayes set", Gait & posture, 30(2), pp.173~180 (2009)
- Delp, S. L., "A graphics-based software system to develop and analyze models of musculoskeletal structures", Computers in biology and medicine, 25(1), pp.21~34 (1995)
- Delp, S. L., "A computational framework for simulating and analyzing human and animal movement", Computing in Science & Engineering, 2(5), pp.46~55 (2000)
- Escamilla, R. F., "Knee biomechanics of the dynamic squat exercise", Medicine and science in sports and exercise, 33(1), pp.127~141 (2001)
- Fleck, S. J., "Designing Resistance Training Programs" (2014), Human Kinetics
- Hadi, G., "Three-dimensional kinematic analysis of the snatch technique for lifting different barbell weights", The Journal of Strength & Conditioning Research, 26(6), pp.1568~1576 (2012)
- Kanehisa, H., "Velocity associated characteristics of force production in college weight lifters", British journal of sports medicine, 33(2), pp.113~116 (1999)
- Longpré, H. S., "Muscle activation and knee biomechanics during squatting and lunging after lower extremity fatigue in healthy young women", Journal of Electromyography and Kinesiology, 25(1), pp.40~46 (2015)
- 문영진, "역도 인상동작 수행시 바벨 증가에 따른 EMG 경향성에 대한 연구", 한국운동역학회지, 16(4), pp.1~12 (2006), 한국운동역학회
- Analysis of Primary and Core Muscle Activity Using SIMM during Snatch, "Moon, Y.", Korea Institute of Sport Science, ~ (2010)
- Evaluation of Injury-related Motion and Body Joints during Snatch, "Moon, Y.", Korea Institute of Sport Science, ~ (2014)
- Evaluation of Factors Related to Anterior Cruciate Ligament Injuries during Snatch, "Moon, Y.", Korea Institute of Sport Science, ~ (2015)
- 박일봉, "고교여자역도 선수들의 용상동작 수행 시 체급별 무게증가에 따른 EMG변화 비교 분석", 한국운동역학회지, 18(2), pp.105~114 (2008), 한국운동역학회
- 박태민, "인상기술 향상을 위한 보조훈련들의 근 활동 분석", 체육과학연구, 19(3), pp.162~169 (2008), 국민체육진흥공단 부설 한국스포츠개발원
- Rønnestad, B. R., "Acute effect of whole-body vibration on power, one-repetition maximum, and muscle activation in power lifters", The Journal of Strength & Conditioning Research, 26(2), pp.531~539 (2012)
- Whitting, J. W., "Influence of Footwear Type on Barbell Back Squat Using 50, 70, and 90% of One Repetition Maximum : A Biomechanical Analysis", The Journal of Strength & Conditioning Research, 30(4), pp.1085~1092 (2016)