Steadman Philippon Research Institute, Vail, Colorado, USA.
Am J Sports Med. 2011 Jul;39 Suppl:29S-35S. doi: 10.1177/0363546511414012.
Femoroacetabular impingement (FAI) is becoming a prevalent overuse injury diagnosis among hockey players. In the adult ice hockey stride, the "at-risk" hip position, defined by internal rotation during flexion and external rotation during abduction, reportedly increases hip vulnerability to labral injury as a result of FAI.
Peewee youth ice hockey players display the kinematics for both described at-risk hip positions (internal rotation during flexion and external rotation during abduction) in the ice hockey sprint start.
Descriptive laboratory study.
Twelve healthy male Peewee ice hockey players (mean age, 10.8 ± 0.6 years) participated in this study. Thirty-five anatomic landmarks were used to analyze the 3-dimensional kinematic and kinetic variables of the hip associated with the ice hockey sprint start. Ten high-speed (120-Hz) infrared cameras recorded the trials, which were subsequently analyzed with Motion Monitor software. The sprint start was recorded over 4 defined periods of motion: start, push, swing, and even.
In the "push" period, 11.5° of external rotation was observed concurrently with 13.2° of abduction in the push leg, and 6.8° of internal rotation occurred with 33.8° of flexion in the lead leg. During the recovery phase of the "swing" period, maximum internal rotation was 5.6° with concurrent hip flexion of 44.2° in the push leg, while lead leg internal rotation reached a maximum of 10.8° with hip flexion of 35.1° during the "even" period.
During the sprint start, youth ice hockey players externally rotate in abduction during the push-off phase and internally rotate through increasing hip flexion during the recovery phase, displaying the at-risk hip positions of the ice hockey skating stride.
During the sprint start, youth ice hockey players position their hips in a manner that can cause impingement of the femoral neck against the acetabulum and potentially lead to labral tears and/or articular cartilage damage. This knowledge could be applied to assist in the prevention of overuse injuries of the hip as youth hockey players mature and increase in skill level.
髋关节撞击综合征（FAI）在曲棍球运动员中成为一种常见的过度使用损伤诊断。在成人冰球步伐中，“高危”髋关节位置定义为在屈曲时内旋和在外展时外旋，据报道，由于 FAI，该位置会增加髋关节对盂唇损伤的脆弱性。
青少年冰球运动员在冰球冲刺起跑中表现出两种描述的高危髋关节位置（屈曲时内旋和外展时外旋）的运动学特征。
描述性实验室研究。
12 名健康的男性 Peewee 冰球运动员（平均年龄，10.8±0.6 岁）参加了这项研究。使用 35 个解剖学标志来分析与冰球冲刺起跑相关的髋关节的三维运动学和动力学变量。10 个高速（120Hz）红外摄像机记录了试验，随后使用 Motion Monitor 软件进行分析。冲刺起跑记录了 4 个定义的运动阶段：起跑、推动、摆动和恢复。
在“推动”阶段，推动腿观察到 11.5°的外旋，同时外展 13.2°，而在领先腿中，6.8°的内旋发生在 33.8°的屈曲中。在“摆动”阶段的恢复阶段，推动腿的最大内旋为 5.6°，同时髋关节屈曲 44.2°，而在“恢复”阶段，领先腿的内旋达到最大 10.8°，髋关节屈曲 35.1°。
在冲刺起跑中，青少年冰球运动员在推动阶段向外展外旋，在恢复阶段通过增加髋关节屈曲进行内旋，显示出冰球滑步的高危髋关节位置。
在冲刺起跑中，青少年冰球运动员将髋关节置于一种可能导致股骨颈撞击髋臼并潜在导致盂唇撕裂和/或关节软骨损伤的位置。当青少年冰球运动员成熟并提高技能水平时，这些知识可以应用于帮助预防髋关节过度使用损伤。
