Colliander E B, Tesch P A
Department of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
Eur J Appl Physiol Occup Physiol. 1989;59(3):227-32. doi: 10.1007/BF02386192.
This study assessed maximum eccentric (ECC) and concentric (CON) torque of quadriceps (QUAD) and hamstring (HAM) muscle groups in healthy females (n = 13) and males (n = 27). Peak torques (PT) of bilateral muscle actions were recorded at constant angular velocities of 0.52, 1.57 and 2.61 rad.s-1. The QUADCON and HAMCON PT decreased (p less than 0.05) with increasing angular velocity. The QUADECC and HAMECC PT increased (p less than 0.05) in females, whereas QUADECC PT decreased (p less than 0.05) and HAMECC PT showed no change in males. In general, ECC PT was higher (p less than 0.05) than CON PT and QUAD PT was higher (p less than 0.05) than HAM PT, for any given angular velocity. Males displayed higher (p less than 0.05) PT than females but when PT were adjusted for body mass the sex differences in QUADCON and HAMCON were reduced (p less than 0.05), whereas the differences in QUADECC and HAMECC were abolished. The CON and ECC PT were, on average, 60% and 41% greater, respectively, in males than in females. The corresponding differences, when adjusted for body mass, were 23% and 8%. ECC:CON PT for QUAD were higher (p less than 0.05) in females than in males. CON and ECC HAM:QUAD PT ratio increased (p less than 0.05), as a function of velocity. This study suggests, that bilateral ECC PT is higher than CON PT and CON HAM:QUAD PT ratio is higher than ECC HAM:QUAD PT ratio.(ABSTRACT TRUNCATED AT 250 WORDS)
本研究评估了健康女性（n = 13）和男性（n = 27）股四头肌（QUAD）和腘绳肌（HAM）肌群的最大离心（ECC）和向心（CON）扭矩。在0.52、1.57和2.61 rad.s-1的恒定角速度下记录双侧肌肉动作的峰值扭矩（PT）。随着角速度增加，QUADCON和HAMCON PT降低（p小于0.05）。女性的QUADECC和HAMECC PT增加（p小于0.05），而男性的QUADECC PT降低（p小于0.05）且HAMECC PT无变化。一般来说，在任何给定角速度下，ECC PT高于CON PT（p小于0.05），QUAD PT高于HAM PT（p小于0.05）。男性的PT高于女性（p小于0.05），但当根据体重调整PT时，QUADCON和HAMCON的性别差异减小（p小于0.05），而QUADECC和HAMECC的差异消失。男性的CON和ECC PT平均分别比女性高60%和41%。根据体重调整后，相应差异为23%和8%。女性QUAD的ECC:CON PT高于男性（p小于0.05）。CON和ECC HAM:QUAD PT比值随速度增加（p小于0.05）。本研究表明，双侧ECC PT高于CON PT，且CON HAM:QUAD PT比值高于ECC HAM:QUAD PT比值。（摘要截断于250字）
