Abstract：
Femoroacetabular impingement (FAI) is caused by hip joint anomalies. Although asymptomatic and symptomatic FAI have been reported in young adults, information on biomechanical and functional characteristics of FAI is rare. We compared the subjective hip score, range of motion (ROM), dynamic balance, and hip strength between symptomatic FAI (FAIsym) and asymptomatic FAI (FAIasym) groups and healthy controls. Participants (n = 307; men: 155, women: 152) were classified according to morphological abnormalities and hip joint symptoms, comprising symptomatic FAI, asymptomatic FAI, and healthy controls. The Copenhagen Hip and Groin Outcome Score (HAGOS), hip ROM, Y-balance test (YBT), and isokinetic hip strength were measured. The types of FAI were not significantly differenent in both men and women. FAIsym exhibited significantly reduced HAGOS, whereas FAIasym showed no significant difference compared to the healthy group (men: healthy 91.7 vs. FAIasym 87.2 vs. FAIsym 49.9, women: healthy 91.7 vs. FAIasym 86.2 vs. FAIsym 53.9). Hip flexion, adduction, and internal and external rotation ROMs were only significantly reduced in symptomatic FAI. Asymptomatic and symptomatic FAI groups displayed significantly lower YBT scores than healthy controls (men healthy: 84.9 vs. FAIasym: 69.0 vs. FAIsym 58.7, women healthy 79.2 vs. FAIasym 64.0 vs. FAIsym 55.5). Isokinetic hip flexion, adduction, and abduction strengths were significantly lower in FAIsym. In conclusion, FAIasym showed no decrease in muscle strength but displayed reduced dynamic balance. Subjective satisfaction, ROM, muscle strength, and dynamic balance were lower in FAIsym compared to FAIasym and healthy groups.
摘要：
股骨髋臼撞击（FAI）是由髋关节异常引起的。尽管在年轻人中已经报道了无症状和有症状的FAI，有关FAI生物力学和功能特征的信息很少。我们比较了主观髋关节评分，运动范围（ROM），动平衡,有症状FAI（FAISym）和无症状FAI（FAIasym）组和健康对照组之间的髋关节力量。参与者（n=307；男性：155，女性：152）根据形态异常和髋关节症状进行分类，包括有症状的FAI，无症状FAI，和健康的控制。哥本哈根髋部和腹股沟结果评分（HAGOS），臀部ROM，Y平衡试验(YBT),测量等速髋关节力量。FAI的类型在男性和女性中没有显着差异。FAISym表现出显著降低的HAGOS，而FAIasym与健康组相比没有显着差异(男性：健康91.7vs.FAIasym87.2vs.FAISym49.9，女性：健康91.7vs.FAIasym86.2vs.FAISym53.9)。髋关节屈曲,内收,内外旋转ROM仅在有症状的FAI中显着减少。无症状和有症状FAI组的YBT评分明显低于健康对照组（男性健康：84.9vs.FAIasym：69.0vs.FAISym58.7，女性健康79.2vs.FAIasym64.0vs.FAISym55.5)。等速髋关节屈曲,内收,FAISym的外展强度明显较低。总之,FAIasym显示肌肉力量没有降低，但动态平衡降低。主观满意度,ROM,肌肉力量,与FAIasym和健康组相比，FAISYM的动态平衡较低。
