Brunner Romana, Maffiuletti Nicola A, Casartelli Nicola C, Bizzini Mario, Sutter Reto, Pfirrmann Christian W, Leunig Michael
Neuromuscular Research Laboratory, Schulthess Clinic, Zurich, Switzerland Zurich University of Applied Sciences (ZHAW), Winterthur, Switzerland.
Neuromuscular Research Laboratory, Schulthess Clinic, Zurich, Switzerland
Am J Sports Med. 2016 Jan;44(1):46-53. doi: 10.1177/0363546515607000. Epub 2015 Oct 13.
Femoroacetabular impingement (FAI), which is highly prevalent in adult ice hockey players, is often associated with negative clinical and functional outcomes. It is unclear, however, whether FAI-related bony deformities and symptoms may lead to functional alterations as reflected in hip muscle strength, range of motion (ROM), and on-ice physical performance in youth ice hockey players.
Compared with players with neither structural signs nor symptoms related to FAI, players with symptomatic FAI would show hip muscle weakness and reduced hip ROM, which would in turn affect ice hockey physical performance.
Controlled laboratory study.
A total of 74 young male ice hockey players were evaluated bilaterally for passive hip internal rotation ROM by use of a hip examination chair. Only the side with less internal rotation ROM was further investigated. FAI-related bony deformities were evaluated with magnetic resonance imaging (MRI). The involved hip was classified as symptomatic or asymptomatic based on the presence of hip pain during exercise and results from the flexion/adduction/internal rotation (FADIR) provocation test. Hip muscle strength, passive hip ROM, and on-ice physical performance were compared between players with no FAI, players with asymptomatic MRI-positive FAI, and players with symptomatic FAI.
Fifty of 74 players (68%) had FAI-related bony deformities, of whom 16 (22%) were symptomatic. Hip muscle strength, hip ROM, and on-ice physical performance did not differ significantly between players with no FAI and those with asymptomatic or symptomatic FAI.
Despite a high prevalence of FAI-related bony deformities, youth ice hockey players with asymptomatic or symptomatic FAI did not show functional impairments in terms of hip muscle strength, hip ROM, or on-ice physical performance.
Hip muscle strength, passive hip ROM, and on-ice physical performance do not seem to discriminate for FAI-related signs and symptoms in young male ice hockey players.
股骨髋臼撞击症（FAI）在成年冰球运动员中非常普遍，常伴有不良的临床和功能结局。然而，目前尚不清楚与FAI相关的骨畸形和症状是否会导致青年冰球运动员的髋部肌肉力量、活动范围（ROM）和冰上运动表现等功能改变。
与既无FAI相关结构体征也无相关症状的运动员相比，有症状的FAI运动员会出现髋部肌肉无力和髋部ROM减小，进而影响冰球运动表现。
对照实验室研究。
使用髋关节检查椅对74名年轻男性冰球运动员的双侧髋关节进行被动内旋ROM评估。仅对ROM较小的一侧进行进一步研究。通过磁共振成像（MRI）评估与FAI相关的骨畸形。根据运动时髋部疼痛情况和屈曲/内收/内旋（FADIR）激发试验结果，将受累髋关节分为有症状或无症状。比较无FAI的运动员、MRI阳性但无症状的FAI运动员和有症状的FAI运动员之间的髋部肌肉力量、被动髋部ROM和冰上运动表现。
74名运动员中有50名（68%）存在与FAI相关的骨畸形，其中16名（22%）有症状。无FAI的运动员与无症状或有症状的FAI运动员之间，髋部肌肉力量、髋部ROM和冰上运动表现差异均无统计学意义。
尽管与FAI相关的骨畸形患病率很高，但无症状或有症状的FAI青年冰球运动员在髋部肌肉力量、髋部ROM或冰上运动表现方面并未表现出功能损害。
对于年轻男性冰球运动员，髋部肌肉力量、被动髋部ROM和冰上运动表现似乎无法区分FAI相关的体征和症状。
