Effects of accentuated eccentric resistance training on concentric knee extensor strength

被引:22
|
作者
Godard, MP [1 ]
Wygand, JW [1 ]
Carpinelli, RN [1 ]
Catalano, S [1 ]
Otto, RM [1 ]
机构
[1] Adelphi Univ, Dept Hlth Phys Educ & Human Performance Studies, Garden City, NY 11530 USA
关键词
isotonic; torque; specificity;
D O I
10.1519/00124278-199802000-00005
中图分类号
G8 [体育];
学科分类号
04 ; 0403 ;
摘要
This study tested the hypothesis that concentric resistance exercise along with an accentuated eccentric load would elicit greater increases in concentric strength than training with a similar amount of resistance for concentric and nonaccentuated eccentric muscle actions. Pre- and posttraining concentric one repetition max (1-RM) of the left knee extensors was used to measure strength in 28 untrained young men and women. Resistance for concentric and eccentric muscle actions was a constant external torque initially set at 80% of the concentric 1-RM for subjects in the Con/Ecc group. Resistance for the eccentric component of the Con/Ecc+ group was 40% greater than their concentric resistance. Both groups trained with one set of 8-12 unilateral repetitions (3 sec concentric, 3 sec eccentric) to muscular fatigue twice a week for 10 weeks on a Cybex 6000 dynamometer. There were significant increases in concentric knee extensor torque in both groups, with no significant difference between groups. The results suggest there is no significant further enhancement of maximal concentric torque from training with an accentuated eccentric resistance in previously untrained persons.
引用
收藏
页码:26 / 29
页数:4
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