Analysis of Lower Extremity Contraction According to Gender Using Tensiomyography.
10.5763/kjsm.2017.35.3.181
- Author:
Bo Kyeong KIM
1
;
Jung Hun CHAI
;
Chan KIM
;
Chul Hyun KIM
;
Sang Won BAE
Author Information
1. Department of Sport and Leisure Studies, Korea University, Sejong, Korea.
- Publication Type:Original Article
- Keywords:
Contraction velocity;
Gender;
Maximal displacement;
Tensiomyography
- MeSH:
Female;
Humans;
Lower Extremity*;
Male;
Muscle Contraction;
Muscles;
Quadriceps Muscle;
Thigh
- From:The Korean Journal of Sports Medicine
2017;35(3):181-189
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Tensiomyography (TMG) is used to evaluate the contraction characteristics of the thigh muscles according to gender. Our hypothesis is that male's maximal displacement (Dm) will be lower than the control because the Dm increases when the muscle becomes stiff or hypertrophied. TMG evaluated 15 males and 12 females. The biceps femoris, semitendinosus, vastus lateralis, vastus medialis, and rectus femoris were evaluated. The TMG parameters obtained for each muscle were Dm and contraction time (Tc). And we calculated contraction velocity (Vc) as the rate of the radial displacement occurring during the time period of Tc with respect to Tc. Dm and Vc values of biceps femoris muscles were significantly lower in males than in controls, whereas Dm and Vc values of vastus medialis muscles were significantly lower in females than males. The Tc values of males were significantly higher in right and bilateral sum than females. This is the first report on TMG assessment by gender. We found that it is the most effective in finding muscle contraction characteristics according to gender and can induce the difference between the Dm and Vc of each muscle.
