| Title |
Comparison of the Maximum Moment of Ankle Plantarflexors During Various Isokinetic Contractions in the Elderly Males and Females and Young Males and Females |
| Authors |
김지원(Kim, Ji-Won) ; 김상우(Kim, Sang-Woo) ; 문기욱(Moon, Ki-Wook) ; 엄광문(Eom, Gwang-Moon) ; 이영규(Lee, Young-Gyu) ; 남정숙(Nam, Jung-Sook) ; 박관용(Park, Kwan-Yong) ; 김요한(Kim, Yo-Han) ; 홍정화(Hong, Jeong-Hwa) ; 박병규(Park, Bung-Kyu) |
| Keywords |
Fall risk ; Elderly ; Ankle moment ; Isokinetic contraction |
| Abstract |
In this paper, we investigated the maximum ankle joint plantarflexion moment(MPM) of young and elderly subjects during various modes of isokinetic contractions with special interest in the elderly females who were reported to have higher fall rate than the elderly males. Subjects include the young subjects(14 males: 22.7pm2.5yrs, 13 females: 20.5pm1.3yrs) and the elderly subjects(17 males: 65.8pm10.5yrs, 26 females: 71.4pm5.2yrs). The MPM was normalized by each subject's body weight. The MPM of elderly females was the weakest among the groups, particularly, at the eccentric contractions. The male-to-female ratio of MPM was greater in the elderly than in the young and the young-to-elderly ratio of MPM was greater in female than in male, both during the eccentric contractions. The result suggests that the decreased muscle force per body weight, especially at the eccentric contraction, may be one reason for the more frequent fall of the elderly female than the elderly male. |