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相关概念视频

Isotonic and Isometric Muscle Contractions01:22

Isotonic and Isometric Muscle Contractions

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Two primary types of muscle contractions are isotonic and isometric, each serving unique functions and involving distinct mechanisms. Both isotonic and isometric contractions are integral to the body's complex system of movement and stability. Isotonic exercises contribute significantly to functional strength and movement, while isometric contractions are crucial for maintaining posture and joint stability.
Isotonic contractions
Isotonic contractions occur when a muscle changes length while...
2.9K

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相关实验视频

Updated: Jun 18, 2025

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
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异位测试可以替代一次重复的最大坐测试吗?

Konstantin Warneke1, Michael Keiner2, David G Behm3

  • 1Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria. konstantin.warneke@uni-graz.at.

European journal of applied physiology
|August 4, 2024
PubMed
概括

同度强度测试不是一次重复最大 (1RM) 测试的可靠替代品. 分析发现了显著的测量错误,表明监测强度调整方法之间的一致性不佳.

关键词:
协议 协议 协议 协议一致性 一致性 一致性同位数的腿部中部拉动最大的强度最大强度.Squat 腰 腰 腰 腰 腰 腰 腰 腰 腰 腰测试特异性的测试

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科学领域:

  • 运动科学 运动科学 运动科学
  • 生物力学 生物力学
  • 运动生理学 运动生理学

背景情况:

  • 准确的力量测量对于监测训练适应至关重要.
  • 一次重复最大 (1RM) 测试是一种标准但耗时的方法.
  • 同度测试被提议作为1RM测试的时间效率高的替代方案.

研究的目的:

  • 评估异度和动态强度测试方法之间的一致性.
  • 为了确定异比测试是否可以可靠地取代1RM测试的腰和中腿拉动练习.
  • 用平均绝对误差 (MAE) 和平均绝对百分比误差 (MAPE) 来评估测量误差.

主要方法:

  • 对坐和对称的中大腿拉动进行同度和动态测试协议的比较.
  • 使用的相关系数 (r,ICC),平均绝对误差 (MAE),平均绝对百分比误差 (MAPE),一致性相关系数 (CCC) 和布兰德-阿尔特曼 (BA) 分析.
  • 分析了测量协议,而不仅仅是相关性,以评估测试可替换性.

主要成果:

  • 观察到高相关性 (r=0.638-0.828,ICC=0.630-0.828),与之前的文献相一致.
  • 协议分析发现了大量的测量错误 (MAE=175.75-444.17 N,MAPE=16.16-57.71%).
  • 这些错误表明,同位测和动态强度测试条件之间的一致性很差.

结论:

  • 同度强度测试方法没有证明足够的协议来取代1RM测试.
  • 高度的测量误差使得同度测试不适合准确监测腰和中腿拉力中的强度适应.
  • 目前推将1RM替换为坐的同位测试,这一分析并不能支持.