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相关概念视频

Motor Unit Stimulation01:20

Motor Unit Stimulation

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When the neuron of a motor unit fires an action potential, it triggers a series of events, leading to a twitch contraction in the muscle fibers. The process of excitation-contraction coupling is crucial in relaying the action potential to the muscle fibers.
The latent period of contraction marks the onset of excitation-contraction coupling, when the action potential propagates across the sarcolemma, preparing the muscle fibers for contraction. As the fibers enter the contraction phase, the...
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测量肌肉力量的不同手持式动力表之间的变化.

William Du1, Kayla M D Cornett1,2, Gabrielle A Donlevy1,2

  • 1Sydney School of Health Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW 2006, Australia.

Sensors (Basel, Switzerland)
|March 28, 2024
PubMed
概括

用于肌肉力量测试的手持式动力计的可互换性对于使用规范性数据至关重要. 这项研究发现,几个设备可以互换用于上肢和下肢力量测量.

关键词:
临床结果评估 临床结果评估临床试验和队列研究.同位数的肌肉强度是指肌肉的强度.负载电池动力计的负载电池动力计结果措施的结果措施.

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科学领域:

  • 生物力学 生物力学
  • 康复医学 康复医学 康复医学
  • 临床测量 临床测量

背景情况:

  • 手动动力计对于评估神经肌肉疾病和治疗疗效至关重要.
  • 通常使用标准化的规范数据,但不同动力计设备的可互换性尚未得到充分确立.
  • 这种缺乏明确性限制了在临床实践中一致应用参考值的可能性.

研究的目的:

  • 调查六种商用手持式动力计的可变性和可互换性.
  • 在健康个体中评估四个不同的肌肉群的同位体肌肉强度.
  • 为了确定不同的动力计是否为临床使用提供可比的测量.

主要方法:

  • 30名健康人参与了这项研究.
  • 六个动力表被校准并用于测量脚背曲器,部内部旋转器,肩部外部旋转器和手握强度的等比肌肉强度.
  • 使用百分比差异量化了可变性,并使用单向重复测量ANOVA分析了统计显著性.

主要成果:

  • 动力计之间的百分比差异在0.2%至16%之间.
  • 在Citec,Nicholas和MicroFET2动力计之间没有发现重要的差异,用于四肢强度测量 (p > 0.05).
  • 抓地强度测量显示Citec和Jamar Plus/基线液压之间存在显著差异 (p < 0.01),但在控制抓地周长时 (p > 0.05) 变得可比.

结论:

  • 某些手持式动力表显示出可互换的测量上肢和下肢肌肉力量.
  • 这种可互换性支持在临床环境中更广泛地应用规范性参考值.
  • 仔细考虑设备特定的特征,如握柄周长,对于准确的强度评估很重要.