Academic Department of Physiotherapy, Faculty of Life Sciences and Medicine, King's College London, 2(nd) Floor Addison House, Guy's Campus, London SE1 1UL, United Kingdom.
Department of Physiotherapy, King's College Hospital NHS Foundation Trust, Denmark Hill, London SE5 9RS, United Kingdom.
Hum Mov Sci. 2021 Apr;76:102772. doi: 10.1016/j.humov.2021.102772. Epub 2021 Feb 17.
Delayed onset muscle soreness (DOMS) and Anterior Cruciate Ligament (ACL) injuries are both prevalent in sport. It is currently unknown whether DOMS increases ACL injury risk.
This study aimed to provide preliminary insight on whether DOMS affects ACL injury risk by investigating whether DOMS affects the biomechanical variables of the DVJ that have been identified as risk factors for future ACL injury.
This was a randomised control trial involving 32 active individuals aged 18-35 years, with no history of ACL injury. Participants underwent two sessions of force-plate testing and 3D motion analysis of the drop vertical jump (DVJ). The DVJ was chosen as it has been investigated prospectively for association with future ACL injury. Initial testing was followed by randomisation to DOMS or control group. The DOMS group underwent a DOMS-inducing exercise protocol, the control group did not. Both groups were re-tested 48 h after initial testing. Five variables of the DVJ that have been associated with future ACL injury were chosen for analysis - peak knee flexion angle, peak vertical ground reaction force, ground contact time, peak knee abduction angle & peak knee abduction moment. Between-group differences were compared using a two-way mixed analysis of variance; alpha level set to 0.05.
DOMS was successfully induced in all participants of the DOMS group however no statistically significant group x time interactions were found for any of the five variables analysed.
DOMS did not affect the biomechanical variables of the DVJ that have been associated with future ACL injury. By extension, this may suggest that DOMS might not affect ACL injury risk. However, it is also possible that certain attributes of the DVJ meant that any effect of DOMS was simply unable to be quantified, even if an effect existed. All considered, our position is that conclusion cannot be drawn from this study alone on whether DOMS affects ACL injury risk. Further research is required.
延迟性肌肉酸痛（DOMS）和前交叉韧带（ACL）损伤在运动中都很常见。目前尚不清楚 DOMS 是否会增加 ACL 损伤的风险。
本研究旨在通过研究 DOMS 是否会影响已确定为未来 ACL 损伤风险因素的 DVJ 生物力学变量，初步探讨 DOMS 是否会影响 ACL 损伤风险。
这是一项随机对照试验，涉及 32 名年龄在 18-35 岁、无 ACL 损伤史的活跃个体。参与者接受了两次测力板测试和 3D 运动分析的垂直跳（DVJ）。选择 DVJ 是因为它已经前瞻性地研究了与未来 ACL 损伤的关联。初始测试后进行随机分组到 DOMS 或对照组。DOMS 组进行了 DOMS 诱导运动方案，对照组则没有。两组均在初始测试后 48 小时进行重新测试。选择了与未来 ACL 损伤相关的五个 DVJ 变量进行分析-峰值膝关节屈曲角度、峰值垂直地面反作用力、地面接触时间、峰值膝关节外展角度和峰值膝关节外展力矩。使用双向混合方差分析比较组间差异；alpha 水平设为 0.05。
所有 DOMS 组的参与者均成功诱导出 DOMS，但在分析的五个变量中，均未发现统计学上显著的组间 x 时间相互作用。
DOMS 并未影响与未来 ACL 损伤相关的 DVJ 的生物力学变量。由此推断，DOMS 可能不会影响 ACL 损伤风险。然而，也有可能是 DVJ 的某些属性意味着即使存在影响，DOMS 的任何影响也无法被量化。综合考虑，我们的立场是，仅凭这项研究无法得出 DOMS 是否会影响 ACL 损伤风险的结论。需要进一步的研究。
