메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색

논문 기본 정보

자료유형
학술저널
저자정보
박지홍 (경희대학교) 송경택 (MOTION Science Institute Department of Exercise) 이세용 (연세대학교) 류호형 (경희대학교(국제캠퍼스))
저널정보
한국운동생리학회 운동과학 운동과학 제29권 제3호
발행연도
2020.1
수록면
225 - 232 (8page)

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색

초록· 키워드

오류제보하기
PURPOSE: We examined the immediate effect on ankle or knee joint cooling on the lower-extremity activation during a single-leg dropjump. METHODS: Twenty healthy adults randomly completed three data collection sessions (a 20-minute ankle or knee joint cooling, or control). Two wireless surface electromyography (EMG, 2,000 Hz) electrodes were attached over the vastus medialis (VM) and the medialgastrocnemius (MG) on their right limb. Subjects were asked to drop down from a wooden box (a 30-cm height) on their right footonto the force platform (2,000 Hz) and then performed an immediate jump as high as they could. Whole EMG signals (normalised bythe mean EMG value recorded during a reference position) within the preactivation (100-ms prior to contact) and the ground contact(on the force platform) during the drop jump task were analysed using functional linear models (p=.05, Cohen’s d effect size: ES). RESULTS: After knee joint cooling, (1) the VM activation was decreased during the ground contact (6 to 14%, 30 to 45%, 60 to 90%for ES of 0.50, 0.47, and 0.61, respectively) and (2) the MG activation was increased during the preactivation (84- to 29-ms prior to initialcontact, ES=1.30) and the ground contact (59 to 100%, ES=1.40). No changes were observed under the condition of ankle jointcooling or control. CONCLUSIONS: A 20-minute unilateral knee joint cooling may result in an ipsilateral quadriceps inhibition during a drop jump task. The gastrocnemius appears to increase activation as a compensatory strategy responding to the quadriceps inhibition. The altered neuromuscularactivations do not seem to put an individual at risk of injury, resulting from compressive forces in the sagittal plane.

목차

등록된 정보가 없습니다.

참고문헌 (36)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

최근 본 자료

전체보기

댓글(0)

0