Garcia Danielle, de Sousa Neto Ivo Vieira, de Souza Monteiro Yuri, Magalhães Denis Pinheiro, Ferreira Gleison Miguel Lissemerki, Grisa Roberto, Prestes Jonato, Rosa Bruno Viana, Abrahin Odilon, Martins Tatiane Meire, Vidal Samuel Estevam, de Moura Andrade Rosimeire, Celes Rodrigo Souza, Rolnick Nicholas, da Cunha Nascimento Dahan
Department of Physical Education, Catholic University of Brasilia (UCB), Brasília 71966900, Brazil.
Department of Physical Education, UniProjeção University Center, Brasília 72115145, Brazil.
Healthcare (Basel). 2023 May 18;11(10):1466. doi: 10.3390/healthcare11101466.
the study determined the validity and reliability of measurements obtained using the portable traction dynamometer (PTD) (E-Lastic, E-Sports Solutions, Brazil) and the reproducibility between evaluators (precision) in the evaluation of the isometric muscle strength of the knee extensors of healthy male adults, compared to measurements obtained with the "gold standard" computerized dynamometer (CD) (Biodex System 3, Nova York, NY, USA).
we evaluated sixteen recreationally active men (29.50 ± 7.26 years). The test-retest reliability of both equipment to determine quadriceps strength, agreement analysis, and the minimal important difference were verified.
excellent test-retest interrater reliability was observed for absolute and relative measurements, with a low absolute error for both sets of equipment and excellent validity of the PTD against the CD, as verified by linear regression and Pearson's correlation coefficient.
PTD is a valid and reliable instrument for assessing the isometric strength of knee extensors, with results similar to the isometric CD "gold standard".
本研究确定了使用便携式牵引测力计（PTD）（E-Lastic，E-Sports Solutions，巴西）所获得测量值的有效性和可靠性，以及评估健康成年男性膝关节伸肌等长肌力时评估者之间的再现性（精度），并与使用“金标准”计算机测力计（CD）（Biodex System 3，美国纽约州纽约市）所获得的测量值进行比较。
我们评估了16名经常进行体育活动的男性（29.50±7.26岁）。验证了两种设备用于确定股四头肌力量的重测可靠性、一致性分析以及最小有意义差异。
绝对测量和相对测量均观察到极好的重测信度，两组设备的绝对误差均较低，通过线性回归和皮尔逊相关系数验证，PTD相对于CD具有极好的效度。
PTD是评估膝关节伸肌等长肌力的有效且可靠的仪器，其结果与等长CD“金标准”相似。
