不同协议的可靠性,用手持式动力表来测量肘部曲和伸展的强度
Sevgi Sevi Yeşilyaprak1,2, Fatma Özden3,4, Damla Karabay5
1Menemen, Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, İzmir Bakırçay University, Menemen, İzmir, Türkiye.
概括
手动动力仪 (HHD) 对肘部强度的测量显示出男性和女性在大多数位置上都具有很好的可靠性. 然而,在男性的特定坐着肘部曲试验中,显示出中度的可靠性和系统差异.
科学领域:
- 生物力学 生物力学
- 康复科学 康复科学 康复科学
- 肌肉骨研究 研究
背景情况:
- 精确测量上肢强度对于临床评估和研究至关重要.
- 手动动力计 (HHD) 是评估肌肉力量的常见工具,但其在不同位置的可靠性需要彻底调查.
- 了解测量变异性对于解释强度随时间变化或响应干预的变化至关重要.
研究的目的:
- 用手持式动力表 (HHD) 评估肘部曲和伸展强度测量的内部和内部可靠性.
- 为了确定这些测量的最小可检测变化 (MDC).
- 为了确定测量位置是否影响健康大学生的可靠性.
主要方法:
- 一项涉及20名健康大学生的可靠性研究.
- 两位理疗师在三个不同的位置测量了肘部曲和伸展强度.
- 计算了类内相关系数 (ICCs) 计算了类内和类间可靠性,确定了MDC95%.
主要成果:
- 在大多数测量中,在女性和男性中都观察到出色的内部和间的可靠性 (ICC范围:0.81-0.98).
- 在男性中,在坐着的肘部曲强度与肩部在90度曲时,发现了中等的内部可靠性 (ICC=0.72).
- 观察者之间的肘部曲结果和男性的一些内部结果 (p<0.05) 中发现了系统差异.
- 95%的MDC值在3.44至11.69的范围内,在6.19至10.79的范围内.
结论:
- 对肘部强度的HHD测量表明,对于大多数人来说,在各种位置上具有很高的可靠性.
- 特定的协议,如男性的坐着肘部曲,可能需要仔细考虑,因为中等可靠性和潜在的系统偏差.
- 在解释HHD强度数据时,应考虑个人肌肉强度和测试者经验等因素.
相关概念视频
01:27Measurements of Strain
Strain quantifies the deformation of a material under force, typically measured as normal strain, which represents the change in length when compared with the original length. Electrical strain gauges are used for enhanced accuracy. These devices consist of a conductive wire mounted on a paper backing that adheres to the material's surface. These gauges operate on the piezoresistive effect, where the wire's electrical resistance changes in response to mechanical deformation. The strain gauge...
01:12Non-destructive Tests for Concrete Strength
The rebound hammer test, also known as the Schmidt hammer test, is a non-destructive technique for evaluating the hardness of concrete and, indirectly, the strength of concrete. It operates on the principle that the rebound of a spring-driven mass from a concrete surface correlates to the surface's hardness. The device comprises a mass within a tubular housing, a spring mechanism, and a plunger that strikes the concrete. Upon release, the energy imparted to the mass by the spring causes it to...
01:18Mechanical Characteristics of Steel
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used to...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used to...