目的 探讨悬吊训练对前交叉韧带重建术后患者双膝关节三维运动对称性的影响。方法 纳入前交叉韧带重建术后患者44 例，随机分为悬吊组（n = 22）和对照组（n = 22）。悬吊组按照悬吊训练方案进行康复，将悬吊训练融入常规康复训练（悬吊训练每周2次，连续6周），对照组按照常规康复训练方案进行康复。在干预前和干预后，采用红外运动捕捉系统、等速肌力测试系统以及平衡能力测试仪对两组患者进行运动能力评估。结果 经过训练，悬吊组双侧膝关节前后相对位移的差值较训练前显著减小（Z = -3.186，P = 0.001），训练后悬吊组膝关节前后相对位移的差值小于对照组（Z = -2.044，P =0.041）；悬吊组双下肢屈伸膝力量对称指数较训练前显著提高（t = 7.231，P < 0.01；t = 4.359，P < 0.001）；双下肢多轴平均轨迹差的差值较训练前显著减小（Z = -3.627，P < 0.001）。结论 悬吊训练能进一步改善前交叉韧带重建术后患者双膝关节三维运动的对称性。

Objective To investigate the effect of suspension training（SET）on three⁃dimensional motion
symmetry of both knees after anterior cruciate ligament reconstruction. Methods 44 patients after anterior cruci⁃
ate ligament reconstruction were included and randomly divided into SET group（n = 22）and control group（n =
22）. The control group received routine rehabilitation training，while the SET group combined suspension training
on the basis of routine rehabilitation training. Suspension training was conducted twice a week for 6 consecutive
weeks. The infrared motion capture system，isokinetic muscle strength test system and balance ability test system
were used to evaluate the motor ability of the two groups of patients before and after the intervention. Results Af⁃
ter training，the difference of relative anterior⁃posterior translation in the SET group was significantly reduced
（Z = -3.186，P = 0.001），and the difference was smaller than that in the control group（Z = -2.044，P = 0.041）.
In the SET group，the strength index of the knee flexion and extension were significantly increased（t = 7.231，P <
0.001 and t = 4.359，P < 0.001）. The difference of average trace error index between the two lower limbs were sig⁃
nificantly reduced in SET group（Z = -3.627，P < 0.001）. Conclusion Suspension training can further improve
the three⁃dimensional motion symmetry of knee joint after anterior cruciate ligament reconstruction.