Wang Pu, Qin Zhikai, Zhang Ming
Capital University of Physical Education and Sports, Beijing, 100191, China.
China Volleyball College, Beijing Sport University, Beijing, 100084, China.
Sci Rep. 2025 Apr 25;15(1):14481. doi: 10.1038/s41598-025-98158-x.
This study aimed to quantify lower limb interlimb asymmetries in elite male volleyball players by assessing key performance measures, including vertical jumps, change of direction, and muscle strength. It further explored the potential association between these asymmetries and the occurrence of non-contact lower limb injuries. Thirty-one elite male volleyball athletes (age: 20.1 ± 1.2 years; training experience: 7.1 ± 2.2 years) participated in the study. Interlimb asymmetries were assessed using the single-leg countermovement jump (SCMJ), squat jump (SSJ), drop jump (SDJ), T-test, and Pro-test to evaluate lower limb power, agility, and change-of-direction ability. Concentric and eccentric strengths of the knee extensors and flexors were measured using isokinetic testing. Athletes were monitored for 8 months to record non-contact lower limb injuries. Significant variability was observed in the lower extremity interlimb asymmetries (ranging from 3.61 to 15.91%) across different tests (P < 0.05). Thirteen athletes sustained at least one non-contact lower limb injury during the follow-up period. Logistic regression analysis identified significant predictors of injury risk: knee extensor concentric normalized peak torque asymmetry (OR 1.64 [95% CI 1.14-2.37]; P < 0.01), SCMJ height asymmetry (OR 1.18 [95% CI 1.01-1.34]; P < 0.05), and T-test performance asymmetry (OR 1.41 [95% CI 1.07-1.85]; P < 0.05). Interlimb asymmetries in SCMJ, knee extensor strength, and T-test performance are significant risk factors for non-contact lower limb injuries in elite male volleyball players. Systematic evaluation of these asymmetries could contribute to targeted injury prevention strategies and optimized athletic performance.
本研究旨在通过评估关键性能指标，包括垂直跳跃、方向变化和肌肉力量，来量化精英男性排球运动员下肢的肢体间不对称性。它进一步探讨了这些不对称性与非接触性下肢损伤发生之间的潜在关联。31名精英男性排球运动员（年龄：20.1±1.2岁；训练经验：7.1±2.2年）参与了该研究。使用单腿反向移动跳跃（SCMJ）、深蹲跳跃（SSJ）、下落跳跃（SDJ）、T检验和Pro测试来评估肢体间不对称性，以评价下肢力量、敏捷性和方向变化能力。使用等速测试测量膝伸肌和屈肌的向心和离心力量。对运动员进行了8个月的监测，以记录非接触性下肢损伤情况。在不同测试中观察到下肢肢体间不对称性存在显著差异（范围为3.61%至15.91%）（P<0.05）。13名运动员在随访期间至少发生了一次非接触性下肢损伤。逻辑回归分析确定了损伤风险的显著预测因素：膝伸肌向心标准化峰值扭矩不对称性（比值比1.64[95%置信区间1.14-2.37]；P<0.01）、SCMJ高度不对称性（比值比1.18[95%置信区间1.01-1.34]；P<0.05）和T测试表现不对称性（比值比1.41[95%置信区间1.07-1.85]；P<0.05）。SCMJ、膝伸肌力量和T测试表现中的肢体间不对称性是精英男性排球运动员非接触性下肢损伤的重要风险因素。对这些不对称性进行系统评估有助于制定有针对性的损伤预防策略并优化运动表现。
