前交叉韧带重建术后单腿垂直连续跳跃时的反应力量指数：横断面研究
Reactive strength index during single-limb vertical continuous jumps after anterior cruciate ligament reconstruction: cross-sectional study.
作者信息
Hirohata Kenji, Aizawa Junya, Ohmi Takehiro, Ohji Shunsuke, Mitomo Sho, Ohara Toshiyuki, Koga Hideyuki, Yagishita Kazuyoshi, Jinno Tetsuya, Okawa Atsushi
机构信息
Clinical Center for Sports Medicine and Sports Dentistry, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku, Tokyo, 113-8519, Japan.
Department of Physical Therapy, Faculty of Health Science, Juntendo University, Tokyo, Japan.
出版信息
BMC Sports Sci Med Rehabil. 2022 Aug 2;14(1):150. doi: 10.1186/s13102-022-00542-x.
BACKGROUND
The association of the reactive strength index (RSI) during single-limb vertical continuous jumps (SVCJs) with single-limb hop tests in athletes after anterior cruciate ligament reconstruction (ACLR) is unclear. Thus, this study aimed to confirm the measurement properties of the RSI during SVCJs in athletes with ACLR at the phase of determining the timing of their return to sport.
METHODS
RSI during SVCJs and single-limb hop (single, triple, and crossover) tests were measured for post-ACLR and healthy athletes. The limb symmetry index (LSI) was calculated using the measurements of each parameter. For each test, patients were divided into two subgroups according to their LSI score (≥ 90%, satisfactory; < 90%, unsatisfactory). Fisher's exact test was used to examine the association of single-limb hop tests with RSI during the SVCJs.
RESULTS
A total of 21 post-ACLR and 17 healthy athletes completed all the tests. RSI during SVCJs was significantly lower on the involved limb than on the uninvolved limb in post-ACLR athletes (P < 0.001). The LSI of RSI during SVCJs of post-ACLR athletes was significantly lower than that of the healthy athletes (P < 0.01). Among the post-ACLR athletes, < 30% of those with LSIs > 90% in the single-limb hop tests had an LSI > 90% of the RSI during SVCJs.
CONCLUSIONS
RSI during SVCJs of post-ACLR athletes was significantly lower on the involved limb than on the uninvolved limb, and the asymmetry was more remarkable in the SVCJs than in the single-limb hop tests.
背景
前交叉韧带重建（ACLR）术后运动员单腿垂直连续跳跃（SVCJ）时的反应力量指数（RSI）与单腿跳测试之间的关联尚不清楚。因此，本研究旨在确定ACLR术后运动员在确定恢复运动时间阶段进行SVCJ时RSI的测量特性。
方法
对ACLR术后和健康运动员进行SVCJ时的RSI以及单腿跳（单腿、双腿和交叉）测试。使用每个参数的测量值计算肢体对称指数（LSI）。对于每项测试，根据LSI评分将患者分为两个亚组（≥90%，满意；<90%，不满意）。采用Fisher精确检验来检验单腿跳测试与SVCJ时RSI的关联。
结果
共有21名ACLR术后运动员和17名健康运动员完成了所有测试。ACLR术后运动员患侧肢体SVCJ时的RSI显著低于健侧肢体（P<0.001）。ACLR术后运动员SVCJ时RSI的LSI显著低于健康运动员（P<0.01）。在ACLR术后运动员中，单腿跳测试中LSI>90%的患者中，SVCJ时RSI的LSI>90%的患者不到30%。
结论
ACLR术后运动员患侧肢体SVCJ时的RSI显著低于健侧肢体，且SVCJ中的不对称性比单腿跳测试中更明显。
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