Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Motor Unit Stimulation01:20

Motor Unit Stimulation

4.1K
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...
4.1K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Cell Membrane Capacitance and Characteristic Frequency Among Youth and Adults: Reference Data From NHANES 1999-2000.

Journal of the American Nutrition Association·2026
Same author

Creatine monohydrate for lean mass, strength, and bone density in postmenopausal women: a systematic review and meta-analysis.

Journal of the International Society of Sports Nutrition·2026
Same author

Effects of acute HMB-FA supplementation on antioxidant status and muscle damage in Elite Judoka: a randomized pilot trial.

Journal of the International Society of Sports Nutrition·2026
Same author

The emerging and evolving evidence supporting creatine as an ergogenic aid: history and applications.

Journal of the International Society of Sports Nutrition·2026
Same author

Taurine Supplementation and Human Heat Tolerance: Mechanisms, Evidence, and Integration with Heat Acclimation, Cooling, and Hydration.

Nutrients·2026
Same author

International Society of Sports Nutrition position stand: effects of dietary antioxidants on exercise and sports performance.

Journal of the International Society of Sports Nutrition·2026

相关实验视频

Updated: Mar 3, 2026

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer
07:22

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer

Published on: February 20, 2020

6.3K

可靠性和日间疲劳效应在最大自愿握手收缩期间对力-时间特征的影响.

Modesto A Lebron1, Justine M Starling-Smith1, Grant E Norte1

  • 1School of Kinesiology and Rehabilitation Sciences, University of Central Florida, Orlando, FL. USA.

Motor control
|March 1, 2026
PubMed
概括

使用力-时间数据的手握强度测试显示出良好的可靠性. 强力维护变量,如达到90%峰值力 (TT90) 的时间和曲线缺陷下的面积 (AUC 缺陷),对疲劳性和日间时间相互作用敏感.

关键词:
维护力量维护力量维护这是一个异度测量仪.一天中的时间.

更多相关视频

Measurement of Spatial Stability in Precision Grip
09:36

Measurement of Spatial Stability in Precision Grip

Published on: June 4, 2020

3.6K
In Vivo Measurement of Hindlimb Dorsiflexor Isometric Torque from Pig
09:41

In Vivo Measurement of Hindlimb Dorsiflexor Isometric Torque from Pig

Published on: September 3, 2021

4.4K

相关实验视频

Last Updated: Mar 3, 2026

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer
07:22

Measuring the Motor Aspect of Cancer-Related Fatigue using a Handheld Dynamometer

Published on: February 20, 2020

6.3K
Measurement of Spatial Stability in Precision Grip
09:36

Measurement of Spatial Stability in Precision Grip

Published on: June 4, 2020

3.6K
In Vivo Measurement of Hindlimb Dorsiflexor Isometric Torque from Pig
09:41

In Vivo Measurement of Hindlimb Dorsiflexor Isometric Torque from Pig

Published on: September 3, 2021

4.4K

科学领域:

  • 生物力学 生物力学
  • 人体生理学 人体生理学
  • 肌肉骨健康 肌肉骨健康

背景情况:

  • 同位数手握强度测试是评估整体肌肉强度的标准.
  • 峰值力 (PF) 是一个常见的度量,但力-时间特征可以更深入地了解肌肉功能.
  • 了解可靠性和影响因素对于准确的强度评估至关重要.

研究的目的:

  • 为了评估在最大自愿握手收缩期间各种力-时间特征的测试-重新测试可靠性.
  • 研究疲劳性和日间时间对这些力-时间特征的影响.
  • 为了确定额外的力-时间指标是否提供了比单独的峰值力更多的信息.

主要方法:

  • 参与者进行了最大的自愿握手收缩 (3次重复,4秒持续,1分钟休息).
  • 分析1评估了力-时间变量的测试-重新测试可靠性.
  • 分析2研究了疲劳干预和一天中的时间对这些变量的影响.

主要成果:

  • 所有测量的力-时间变量都显示出中等至优异的相对可靠性.
  • 疲劳性显著影响了大多数变量,除了平原衍生根平均平方.
  • 对于达到90%峰值力 (TT90),曲线缺陷下的面积 (AUC缺陷) 和力变化系数的时间和疲劳性之间发现了显著的相互作用.

结论:

  • 强力-时间特征,特别是TT90和强力维护变量 (AUC赤字,强力变量系数),提供了超出峰值力之外的宝贵见解.
  • 这些指标对疲劳性和一天中的时间的相互作用敏感.
  • 虽然一天中的时间可能不会直接影响表现,但它与疲劳度的相互作用对于理解手握强度动态很重要.