延迟性肌肉酸痛会使腓肠肌的肌肉起始疼痛减轻，从而减少脊髓对肢体间通讯的贡献。
Delayed muscle onset soreness in the gastrocnemius muscle attenuates the spinal contribution to interlimb communication.
机构信息
Department of Health Science and Technology, Center for Sensory-Motor Interaction (SMI), Aalborg University, Fredrik Bajers Vej 7 D-3, 9220, Aalborg, Denmark.
U-VIP: Unit for Visually Impaired People, Center for Human Technologies, Italian Institute of Technology (IIT), Genova, Italy.
出版信息
Eur J Appl Physiol. 2018 Nov;118(11):2393-2402. doi: 10.1007/s00421-018-3966-0. Epub 2018 Aug 21.
PURPOSE
Delayed onset muscle soreness (DOMS) has been shown to induce changes in muscle activity during walking. The aim of this study was to elucidate whether DOMS also affects interlimb communication during walking by investigating its effect on short-latency crossed responses (SLCRs).
METHODS
SLCRs were elicited in two recording sessions by electrically stimulating the tibial nerve of the ipsilateral leg, and quantified in the contralateral gastrocnemius muscle. The second recording session occurred 24-36 h after the participants (n = 11) performed eccentric exercises with the ipsilateral calf.
RESULTS
DOMS caused a decreased magnitude of the spinally mediated component of the SLCR in the contralateral gastrocnemius medialis.
CONCLUSIONS
The results of the current study provide insight on the relationship between pain and motor control. Muscle pain affects the spinal pathway mediating interlimb communication, which might result in a reduced ability to maintain dynamical stability during walking.
目的
延迟性肌肉酸痛（DOMS）已被证明会改变行走时的肌肉活动。本研究旨在通过研究其对短潜伏期交叉反应（SLCR）的影响，阐明 DOMS 是否也会影响行走时的肢体间通讯。
方法
通过对同侧腿部的胫神经进行电刺激，在两次记录过程中引出 SLCR，并在对侧腓肠肌中进行量化。第二次记录发生在参与者（n=11）进行同侧小腿离心运动后 24-36 小时。
结果
DOMS 导致对侧腓肠肌内侧的 SLCR 中脊髓介导成分的幅度降低。
结论
本研究的结果提供了疼痛与运动控制之间关系的深入了解。肌肉疼痛会影响介导肢体间通讯的脊髓通路，这可能导致行走时动态稳定性的维持能力降低。
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