지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.1
- 수록면
- 279 - 290 (12page)
- DOI
- 10.51979/KSSLS.2022.01.87.279
이용수
초록· 키워드
오류제보하기
Purpose: The purpose of this study is to analyze the kinematics and kinematic changes of the lower extremity in the landing height, landing stand width, and foot contact patterns, and to reveal the relationship between these factors and lower extremity injuries.
Method: The subjects of this study were nine male college students. The experimental task was to perform drop landing with both feet on the jump platform. The landing procedures were to land in accordance with the conditions of the landing height (30, 50cm), the landing stand width (narrow, wide), and foot contact patterns(flatfoot, forefoot). Three-dimensional cinematography was performed to analyze the ground reaction force, loading rate, angle, moment, and joint stiffness of the lower extremity.
Results: The peak vertical ground reaction force increased when the landing height was increased, but the loading rate did not differ in all factors. As the landing height was increased, flexion and abduction of the hip joint increased, and the extension moment of the hip joint increased at the same time. As the landing stand width increased, abduction of the hip joint and inversion of the ankle joint increased. The change in foot contact pattern resulted in differences in all factors except hip flexion angle, and in particular, increased plantar flexion moment along with dorsiflexion of the ankle joint during forefoot contact. Finally, there was no difference in joint stiffness of the lower extremity in all conditions.
Conclusion: The landing height affected the hip and knee joints, but the ankle joint was affected by the foot contact patterns. An increase in ankle plantar flexion moment during forefoot contact could be considered an effective feature to reduce lower extremity injuries. The landing stand width resulted in opposite anatomical characteristics in the hip and ankle joints, and further studies are likely to be needed to clarify the results related to this factor.
Method: The subjects of this study were nine male college students. The experimental task was to perform drop landing with both feet on the jump platform. The landing procedures were to land in accordance with the conditions of the landing height (30, 50cm), the landing stand width (narrow, wide), and foot contact patterns(flatfoot, forefoot). Three-dimensional cinematography was performed to analyze the ground reaction force, loading rate, angle, moment, and joint stiffness of the lower extremity.
Results: The peak vertical ground reaction force increased when the landing height was increased, but the loading rate did not differ in all factors. As the landing height was increased, flexion and abduction of the hip joint increased, and the extension moment of the hip joint increased at the same time. As the landing stand width increased, abduction of the hip joint and inversion of the ankle joint increased. The change in foot contact pattern resulted in differences in all factors except hip flexion angle, and in particular, increased plantar flexion moment along with dorsiflexion of the ankle joint during forefoot contact. Finally, there was no difference in joint stiffness of the lower extremity in all conditions.
Conclusion: The landing height affected the hip and knee joints, but the ankle joint was affected by the foot contact patterns. An increase in ankle plantar flexion moment during forefoot contact could be considered an effective feature to reduce lower extremity injuries. The landing stand width resulted in opposite anatomical characteristics in the hip and ankle joints, and further studies are likely to be needed to clarify the results related to this factor.
목차
Ⅰ. 서론
Ⅱ. 연구방법
Ⅲ. 결과
Ⅳ. 논의
Ⅴ. 결론 및 제언
참고문헌
ABSTRACT
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UCI(KEPA) : I410-ECN-0101-2022-692-000203916