인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
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.
초록·키워드
The aim of this study was to investigate the age-related changes of MVF (maximal voluntary contraction force) and finger interaction indices such as finger force enslaving (FE: force production by unintended fingers during force production by task finger), force deficit (FD: force difference between single finger MVF and the force of the same finger in four- finger task), and force sharing (FS: percent contributions of individual finger forces to the total force in four- finger task). Children(n=25, 6-11 years) and young adults(n=8, 20-23 years) participated as subjects in this study. The subjects performed single-finger and four-finger maximal voluntary contraction tasks. During the tasks, the subjects inserted the distal phalanges of the right hand into thimbles affixed to small force sensors with 20° of flexion about the metacarpophalangeal joint and pressed the sensor(s) to produce their maximum isometric force. The results revealed that: 1) MVF increased with age, the steep of increasing slope(N/year) from regression analysis was greatest at four-finger task, then index & middle finger, ring, and little finger task in that order. 2) FE showed the tendency of decrease with age, however, there was no significant difference across age groups. 3) FD revealed the tendency of decrease at all finger tasks with age, however, index finger only showed significant decrease with age. 4) FS was different across task fingers(M > I > R > L). FS pattern of individual finger was very similar across all age groups. We conclude that the finger strength increases with age, however, finger interaction indices(FE and FD) show the tendency of decrease with age from 6 to 23 years. The sharing pattern of fingers appears to develop before 6 years of age.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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