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논문 기본 정보

자료유형
학술저널
저자정보
Sangho Park (PLUG Kids Ilsan Republic of Korea) 김창영 (명지대학교)
저널정보
J-INSTITUTE Kinesiology Kinesiology Vol.6 No.4
발행연도
2021.12
수록면
12 - 20 (9page)

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Purpose: Weight training is a training method that can effectively increase muscle strength and anaerobic ex-ercise capacity. The muscles of the lower extremities, which have been trained through lower body exercises, are a particularly important group of muscles for daily physical and sporting activities. The purpose of this study was to investigate the difference squat loading of the lower extremity joints movement pattern between trained versus un-trained individuals. Method: A total of 20 physically healthy individuals 10 trained subjects(age: 28.71±2.41 yrs, height: 178.92± 4.25 cm, weight: 81.72±4.98 kg) and 10 un-trained subjects(age: 29.42±3.67 yrs, height: 176.62±3.8 cm, weight: 80.2±5.11 kg) participated in this study. The un-trained subjects who had not performed regular resistance exer-cise for at least the past 1 year, and had no experience performing squat movements were selected. The trained group was selected as subjects who had regularly performed resistance strength training for at least 3 years. The three-dimensional motion analysis system, force plate and an wireless electromyography system were synchro-nized and used for measurement. Results: The results of this study showed that there was difference between the trained group and the un-trained group and the trained group showed the pattern of knee varus and un-trained group showed the valgus angle(Knee valgus) displacement. Also, Statistically significant differences appeared in knee forward movement and the trained group(5cm) showed less than the un-trained group(11cm). In the case of MLSI(Medial-Lateral Stability Index), the untrained group showed a higher stability index than the trained group. It was found that the stability index of the trained and untrained groups increased as the body weight increased. Conclusion: The purpose of this study was to investigate the effect of various squat loads on lower extremity movement patterns and stability index during squat exercise between trained and untrained individuals. The sub-jects of the study were 10 trainees who regularly squat for 3 years and 10 non-trainers who practiced squats ir-regularly throughout their lives. As a result of the experiment, it was confirmed that the untrained group had greater knee forward movement and a smaller hip flexion angle than the trained group. In the stability index, it was confirmed that the untrained group showed a higher stability index than the trained group. In future studies, it is considered necessary to study the improvement of squat motion in untrained individuals. It is important to check for changes in movement patterns after training.
#Squat #Stability Index #Joint Movement #Knee Valgus #External Load

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이성도 / 2011 / 스미스 머신을 이용한 스쿼트 운동시 중량 부하가 운동역학적 변인과 하지 근육 활성도에 미치는 영향 / 체육과학연구 22(2):1884~1893 dbpia 임진택 / 2015 / CrossFit Training과 Weight Training이 중학교 축구선수의 신체조성, 체력, 무산소성 운동능력 및 등속성 근기능에 미치는 영향 / 코칭능력개발지 17(4):157~165 dbpia Park Jung-min / 2017 / The Comparative Analysis on Balance Ability of Throwers between Excellent ATHLETES and Non Excellent ATHLETES / Kinesiology 2(2):23~28 dbpia 채원식 / 2007 / 스쿼트 동작 시 발뒤꿈치 보조물 경사각에 따른 하지근과 척추기립근의 근육활동 비교 / 한국운동역학회지 17(2):113~121 dbpia Rao G / 2009 / Influence of Additional Load on the Moments of the Agonist and Antagonist Muscle Groups at the Knee Joint during Closed Chain Exercise / Journal of Electromyography and Kinesiology 19(3):459~466 google schola

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