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相关概念视频

Muscle Stimulation Frequency01:22

Muscle Stimulation Frequency

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The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
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Bioelectric Analyses of an Osseointegrated Intelligent Implant Design System for Amputees
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在电刺激过程中骨愈合.

Yurii Bezsmertnyi1, Viktor Shevchuk1, Yankai Jiang1

  • 1Scientific Department, Scientific and Research Institute of Rehabilitation of National Pirogov Memorial Medical University, Vinnytsia, Ukraine.

Medicinski glasnik : official publication of the Medical Association of Zenica-Doboj Canton, Bosnia and Herzegovina
|July 8, 2023
PubMed
概括

在大腿截肢后,直接对坐骨神经的副神经电刺激可以改善骨茎的愈合. 这种方法使微循环正常化,并促进较好的组织再生,而不是机械刺激或无干预.

科学领域:

  • 再生医学是一种再生医学.
  • 神经科学是一个神经科学.
  • 整形外科手术 整形外科手术

背景情况:

  • 截肢导致复杂的骨茎愈合挑战.
  • 神经刺激会对骨再生产生负面影响.
  • 了解影响骨干茎修复的因素至关重要.

研究的目的:

  • 评估直接上神经电刺激对骨茎修复过程的影响.
  • 为了比较电刺激与机械神经刺激和控制条件.

主要方法:

  • 三个实验系列涉及大腿截肢和肌肉塑料在动物模型.
  • 围神经导管用于机械神经刺激和电极用于脊髓上 electrical刺激的坐骨神经.
  • 用油墨-凝对比媒介进行组织学分析,以评估1,3,6个月的微循环和骨组织再生.

主要成果:

  • 机械神经刺激导致显著的微循环中断,骨再吸收和变形.
  • 在大多数情况下,上神经电刺激导致器官类型的茎,正常化了微循环.
  • 对照组显示中间结果,比机械刺激更好,但比电刺激更糟.

结论:

  • 截肢后的疼痛神经刺激严重损害了骨干的微循环和再生.
关键词:
截肢是一种截肢.骨再生 骨再生副神经刺激 副神经刺激微循环是一种微循环.

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  • 直接的副神经电刺激增强了微循环,并促进了有效的骨组织再生.
  • 电神经刺激是一种有前途的治疗方法,可以改善截肢后的骨干愈合.