Oshima Takeshi, Nakase Junsuke, Kitaoka Katsuhiko, Shima Yosuke, Numata Hitoaki, Takata Yasushi, Tsuchiya Hiroyuki
Department of Orthopaedic Surgery, Graduate School of Medical Science, Kanazawa University, 13-1 Takara-machi, Kanazawa, 920-8641, Japan.
Department of Orthopaedic Surgery, Kijima Hospital, 41-1 Matsudera-machi, Kanazawa, 920-0011, Japan.
Arch Orthop Trauma Surg. 2018 Dec;138(12):1713-1718. doi: 10.1007/s00402-018-2984-z. Epub 2018 Jul 19.
This prospective study aimed to investigate the relationship between static balance and the incidence of non-contact anterior cruciate ligament (ACL) injury in female high school athletes.
This study included 276 female high school handball or basketball players. At the time of admission, each subject's static balance was measured with a gravicorder, and the incidence of non-contact ACL injury was investigated in the 3 years until the student graduated. The measured parameters of postural sway were locus length per time (the distance that a center of gravity of the foot pressure moves per second) and environmental area (AR: the area surrounded by the integumentary covering of the trace of the center of gravity). Twenty-seven players (9.8%) experienced an ACL injury during the 3-year observation period. Twenty-four injured players sustained a non-contact injury and three injured players sustained a contact injury. In this study, the three contact injury players were excluded. We compared the differences in the static balance between injured and uninjured players.
The locus length per time was significantly longer in injured than in uninjured players (p = 0.046). Though there was no statistically significant difference between the two groups in AR (p = 0.190), AR tended to be larger in the ACL injured group.
This result shows that poor static balance is a risk factor for non-contact ACL injury.
这项前瞻性研究旨在调查高中女运动员静态平衡与非接触性前交叉韧带（ACL）损伤发生率之间的关系。
本研究纳入了276名高中女子手球或篮球运动员。入学时，使用重力记录仪测量每位受试者的静态平衡，并调查学生毕业前3年的非接触性ACL损伤发生率。姿势摆动的测量参数为每次轨迹长度（足底压力重心每秒移动的距离）和环境面积（AR：重心轨迹外皮覆盖物所包围的面积）。在3年观察期内，27名球员（9.8%）发生了ACL损伤。24名受伤球员遭受非接触性损伤，3名受伤球员遭受接触性损伤。在本研究中，排除了3名接触性损伤球员。我们比较了受伤和未受伤球员在静态平衡方面的差异。
受伤球员的每次轨迹长度明显长于未受伤球员（p = 0.046）。虽然两组在AR方面无统计学显著差异（p = 0.190），但ACL损伤组的AR往往更大。
该结果表明静态平衡差是非接触性ACL损伤的一个风险因素。
