Peripheral muscle fatigue is a common experience in daily life. Every individual at some point in their life has realized the inability to maintain muscle contraction, a phenomenon known as fatigue. Interestingly, neurological patients with peripheral sequelae such as spastic muscle contraction are able to remain in a pattern of muscle contraction for prolonged periods. The effects of laser therapy are already recognized in muscle contraction to delay skeletal muscle fatigue, prolong physical activity, and reduce delayed onset muscle soreness. However, the effects of photobiomodulation on neurological patients with muscular spasticity are still not well established. The present literature review seeks to recognize articles about the application of laser irradiation, also known as photobiomodulation, to patients with muscle fatigue and/or spastic palsy. To perform a literature review, we used the systematic review methodology for the literature search. The following keywords were searched: (skeletal muscle fatigue) AND (spastic patients) AND (low-level laser therapy OR low intensity laser therapy OR low energy laser therapy OR LLLT OR LILT OR LELT OR infrared laser OR IR laser OR diode laser), and these were used for search on the following databases: PubMed, Embase, Web of Science, BIREME, Scopus, and SciELO. Besides that, a literature review concerning on muscle physiology, fatigue, and LLLT was made. No language filter was applied, and altogether, 689 papers were identified. A group of 3 physiotherapists and 01 pharmaceutical scientist performed the literature review, and every exclusion was confirmed by at least two reviewers. After inclusion and exclusion criteria, 128 studies were included in this review. Conclusion, the LLLT can contribute to the recovery of spastic patients and muscles in fatigue. However, the real effect of laser photobiomodulation on muscle spasticity remains to be established. Only a much reduced number of clinical trials have been performed with a small number of participants. There is a lack of clinical trials from different research groups that could help to understand and elucidate the effects of laser in prolonged muscle contraction in spastic palsy.

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激光光调节对痉挛性患者骨骼肌疲劳的影响综述

周围肌肉疲劳是日常生活中的常见经历。每个人在生活中的某个时刻都已经意识到无法保持肌肉收缩，这种现象被称为疲劳。有趣的是，具有周围后遗症（例如痉挛性肌肉收缩）的神经系统疾病患者能够长时间保持肌肉收缩的模式。激光治疗的效果已经在肌肉收缩中得到公认，以延迟骨骼肌疲劳，延长体力活动并减少延迟发作的肌肉酸痛。然而，光调节对患有肌痉挛的神经系统患者的影响仍未完全确定。本文献综述力求认可有关激光照射（也称为光生物调制）的应用的文章，肌肉疲劳和/或痉挛性麻痹的患者。为了进行文献综述，我们使用系统的文献综述方法进行文献检索。搜索了以下关键字：（骨骼肌疲劳）AND（痉挛性患者）AND（低级激光治疗或低强度激光治疗或低能量激光治疗或LLLT或LILT或LELT或IR激光或IR激光或二极管激光），并在以下数据库中进行搜索：PubMed，Embase，Web of Science，BIREME，Scopus和SciELO。除此之外，还进行了有关肌肉生理，疲劳和LLLT的文献综述。没有应用语言过滤器，总共确定了689篇论文。由3位物理治疗师和01位药物科学家组成的小组进行了文献综述，每一次排除均由至少两名评论者确认。在纳入和排除标准之后，本评价纳入了128项研究。结论LLLT有助于疲劳中痉挛性患者和肌肉的恢复。然而，激光光生物调节对肌肉痉挛的真正效果仍有待确定。在少数参与者的情况下，仅进行了数量大大减少的临床试验。缺乏来自不同研究组的临床试验，可能有助于理解和阐明激光对痉挛性麻痹延长肌肉收缩的作用。在少数参与者的情况下，仅进行了数量大大减少的临床试验。缺乏来自不同研究组的临床试验，可能有助于理解和阐明激光对痉挛性麻痹延长肌肉收缩的作用。在少数参与者的情况下，仅进行了数量大大减少的临床试验。缺乏来自不同研究小组的临床试验，可能有助于理解和阐明激光对痉挛性麻痹延长肌肉收缩的作用。