Dauty M, Potiron-Josse M, Rochcongar P
Pôle de médecine physique et réadaptation, hôpital Saint-Jacques, CHU de Nantes, 44035 Nantes 01, France.
Ann Readapt Med Phys. 2003 Dec;46(9):601-6. doi: 10.1016/j.annrmp.2003.04.001.
To know if isokinetic parameters identify previous hamstring (H) injury and predict a new muscle injury in high-level soccer player.
Concentric (con) and eccentric (ecc) isokinetic torque was measured at the angular speed of 60 degrees /s in 28 elite soccer players (23 years +/- 3.3; 74 kg +/- 7.5; 178 cm +/- 6.5). First, 11 players, victims of 15 moderate or major hamstring injuries in the preceding 2 years, were compared with 17 players without previous hamstring injury. Comparisons were carried out from isokinetic knee flexors-extensors ratios [Hcon/Qcon and Hecc/Qcon] and bilateral knee flexors ratios [Hcon/Hcon and Hecc/Hecc]. Secondly, all the population was followed during 12 months and the isokinetic muscular profile of players who presented a recurrence or a new hamstring muscle injury was analysed.
A concentric ratio hamstring-to-quadriceps lower than 0.6 and a hamstring asymmetry of more than 10% do not allow to identify previous hamstring injury. On the other hand, the mixed ratio eccentric hamstring-to-concentric quadriceps lower than 0.6 represents the best indicator (probability: 77.5%). The rate of recurrence is 30% (three cases of 10) and the rate of new hamstring muscle injury is 31% (five cases of 16) (P > 0.05). One of the five injured soccer players presented a concentric ratio hamstring-to-quadriceps lower than 0.6 and no player presented a mixed ratio lower than 0.6. However, four of the five injured players presented a concentric and an eccentric asymmetry. But, it is the strongest side, which presented a new hamstring muscle injury.
The mixed ratio eccentric hamstring-to-concentric quadriceps lower than 0.6 identify a previous hamstring injury despite the resumption of competitive soccer. However, this ratio and the others isokinetic studied parameters do not predict a recurrence or a new hamstring muscle injury.
了解等速参数能否识别高水平足球运动员既往的腘绳肌（H）损伤，并预测新的肌肉损伤。
对28名精英足球运动员（23岁±3.3岁；74千克±7.5千克；178厘米±6.5厘米）在60度/秒的角速度下测量向心（con）和离心（ecc）等速扭矩。首先，将11名在前两年中曾有15次中度或重度腘绳肌损伤的运动员与17名无既往腘绳肌损伤的运动员进行比较。比较基于等速屈膝肌-伸膝肌比率[Hcon/Qcon和Hecc/Qcon]以及双侧屈膝肌比率[Hcon/Hcon和Hecc/Hecc]。其次，对所有运动员进行为期12个月的随访，并分析出现复发或新的腘绳肌损伤的运动员的等速肌肉特征。
向心腘绳肌与股四头肌比率低于0.6以及腘绳肌不对称超过10%无法识别既往的腘绳肌损伤。另一方面，离心腘绳肌与向心股四头肌的混合比率低于0.6是最佳指标（概率：77.5%）。复发率为30%（10例中的3例），新的腘绳肌损伤率为31%（16例中的5例）（P>0.05）。5名受伤的足球运动员中有1名向心腘绳肌与股四头肌比率低于0.6，没有运动员的混合比率低于0.6。然而，5名受伤运动员中有4名存在向心和离心不对称。但出现新的腘绳肌损伤的是最强的一侧。
尽管恢复了竞技足球运动，但离心腘绳肌与向心股四头肌的混合比率低于0.6可识别既往的腘绳肌损伤。然而，该比率以及其他研究的等速参数无法预测复发或新的腘绳肌损伤。
