PDF(Pubmed)
Abstract：
Introduction: Sports requiring sprinting, jumping, and kicking tasks frequently lead to hamstring strain injuries (HSI). One of the structural risk factors of HSI is the increased passive stiffness of the hamstrings. Anterior cruciate ligament (ACL) injury history is associated with a 70% increase in the incidence of HSI, according to a recent meta-analysis. The same report recommended that future research should concentrate on the relationships between the HSI risk factors. Hence, the present study aimed to retrospectively compare changes in the passive stiffness of the hamstrings in athletes with and without ACL reconstruction history. Methods: Using ultrasound-based shear-wave elastography, the mid-belly passive muscle stiffness values of the biceps femoris long head, semimembranosus, and semitendinosus muscles were assessed and compared amongst athletes with and without a history of ACL reconstruction. Results: There were no significant differences in the biceps femoris long head (injured leg (IL): 26.19 ± 5.28 KPa, uninjured contralateral (UL): 26.16 ± 7.41 KPa, control legs (CL): 27.64 ± 5.58 KPa; IL vs. UL: p = 1; IL vs. CL: p = 1; UL vs. CL: p = 1), semimembranosus (IL: 24.35 ± 5.58 KPa, UL: 24.65 ± 8.35 KPa, CL: 22.83 ± 5.67 KPa; IL vs. UL: p = 1; IL vs. CL: p = 1; UL vs. CL, p = 1), or semitendinosus (IL: 22.45 ± 7 KPa, UL: 25.52 ± 7 KPa, CL: 22.54 ± 4.4 KPa; IL vs. UL: p = 0.487; IL vs. CL: p = 1; UL vs. CL, p = 0.291) muscle stiffness values between groups. Conclusions: The passive mid-muscle belly stiffness values of the biceps femoris long head, semitendinosus, and semimembranosus muscles did not significantly differ between previously injured and uninjured athletes; therefore, further assessment for other muscle regions of hamstrings may be necessary. To collect more comprehensive data related to the structural changes that may occur following ACL reconstructions in athletes, a future study should examine the passive stiffness of wider muscle regions from origin to insertion.
摘要：
简介：需要短跑的运动，跳跃,和踢任务经常导致腿筋拉伤（HSI）。HSI的结构风险因素之一是腿筋的被动刚度增加。前交叉韧带(ACL)损伤史与HSI发病率增加70%相关,根据最近的一项荟萃分析。同一份报告建议，未来的研究应集中在HSI风险因素之间的关系。因此，本研究旨在回顾性比较有和没有ACL重建史的运动员腿筋被动刚度的变化.方法:采用基于超声的剪切波弹性成像,股二头肌长头的中腹被动肌肉刚度值，半膜，在有和没有ACL重建史的运动员中对半腱肌进行了评估和比较。结果:股二头肌长头(伤腿(IL):26.19±5.28KPa,未受伤的对侧（UL）：26.16±7.41KPa，对照腿（CL）：27.64±5.58KPa；ILvs.UL:p=1;ILvs.CL:p=1;ULvs.CL:p=1),半膜（IL：24.35±5.58KPa，UL:24.65±8.35KPa,CL:22.83±5.67KPa;ILvs.UL:p=1;ILvs.CL:p=1;ULvs.CL,p=1),或半腱肌（IL：22.45±7KPa，UL:25.52±7KPa,CL:22.54±4.4KPa;ILvs.UL:p=0.487;ILvs.CL:p=1;ULvs.CL,p=0.291)组间肌肉刚度值。结论:股二头肌长头的被动中肌腹刚度值,半腱肌,和半膜肌在先前受伤和未受伤的运动员之间没有显着差异；因此，可能需要进一步评估腿筋的其他肌肉区域。为了收集与运动员ACL重建后可能发生的结构变化相关的更全面的数据，未来的研究应该检查从起源到插入更广泛的肌肉区域的被动刚度。
