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The effect of elbow position on the handgrip strength test in children: validity and reliability of TKK 5101 and DynX dynamometers
Pedagogy of Physical Culture and Sports Pub Date : 2020-10-30 , DOI: 10.15561/26649837.2020.0504
Stefan Kolimechkov , Jose Castro-Piñero , Lubomir Petrov , Albena Alexandrova

Background and Study Aim: One of the most widely applied methods to assess upper-body strength in children and adolescents is the handgrip strength test. While in adolescents it has been determined which elbow position, and which type of dynamometer are most appropriate for achieving the maximal grip strength, in children is still not clear. Therefore, the purpose of this study was to investigate whether elbow position and the type of dynamometer affect the handgrip strength in children. Material and Methods: Grip strength was measured by TKK and DynX dynamometers, and their validity and reliability were also analysed. A total of 60 children, 6 to 11 years old, participated in this study, and performed the handgrip strength test with their elbow extended and flexed at 90°. Results: While using the TKK dynamometer, grip strength was significantly higher when the test was performed with elbow extended, in contrast to those obtained with elbow flexed (14.58±3.04 kg vs 12.97±2.99 kg, p<0.001 for right, and 14.25±3.05 kg vs 12.61±2.99 kg, p<0.001 for left hand). Likewise, when using the DynX dynamometer, the difference between the two elbow positions was smaller but still significant (13.84±3.22 kg vs 13.35±3.01 kg, p=0.035 for right, and 13.35±2.95 kg vs 12.77±2.96 kg, p=0.003 for left hand). Conclusions: Both dynamometers provided sufficient results in terms of their reliability and the TKK dynamometer showed to be more valid. Performing the handgrip strength test with elbow extended appears to be the most appropriate position in order to obtain maximal results in children.

中文翻译:

肘部位置对儿童手握力测试的影响:TKK 5101和DynX测力计的有效性和可靠性

背景和研究目的:握力测试是评估儿童和青少年上身力量最广泛使用的方法之一。虽然在青少年中,确定哪种肘部位置和哪种测功机最适合于实现最大握力,但对于儿童来说,目前尚不清楚。因此,本研究的目的是调查肘部的位置和测力计的类型是否会影响儿童的握力。材料与方法:用TKK和DynX测力计测量握力,并分析其有效性和可靠性。共有60名6至11岁的儿童参加了这项研究,并在手肘伸直并弯曲90°的情况下进行了握力测试。结果:使用TKK测功机时,与肘部弯曲测试相比,握力明显更高(14.58±3.04 kg vs. 12.97±2.99 kg,右侧p <0.001,而14.25±3.05 kg vs 12.61±2.99 kg,左手p <0.001)。同样,当使用DynX测功机时,两个肘部位置之间的差异较小但仍然很明显(13.84±3.22 kg vs.13.35±3.01 kg,右侧p = 0.035,以及13.35±2.95 kg vs.12.77±2.96 kg,p =左手为0.003)。结论:两种测功机在可靠性方面均提供了足够的结果,而TKK测功机更有效。为了在儿童中获得最大的效果,用伸直的肘进行手握力量测试似乎是最合适的位置。与肘部弯曲获得的对比(14.58±3.04 kg vs. 12.97±2.99 kg,右侧为p <0.001,而14.25±3.05 kg vs. 12.61±2.99 kg,左侧为p <0.001)。同样,当使用DynX测功机时,两个肘部位置之间的差异较小但仍然很明显(13.84±3.22 kg vs.13.35±3.01 kg,右侧p = 0.035,以及13.35±2.95 kg vs.12.77±2.96 kg,p =左手为0.003)。结论:两种测功机在可靠性方面均提供了足够的结果,而TKK测功机更有效。为了在儿童中获得最大的效果,用伸直的肘进行手握力量测试似乎是最合适的位置。与肘部弯曲获得的对比(14.58±3.04 kg vs. 12.97±2.99 kg,右侧为p <0.001,而14.25±3.05 kg vs. 12.61±2.99 kg,左侧为p <0.001)。同样,当使用DynX测功机时,两个肘部位置之间的差异较小但仍然很明显(13.84±3.22 kg vs.13.35±3.01 kg,右侧p = 0.035,以及13.35±2.95 kg vs.12.77±2.96 kg,p =左手为0.003)。结论:两种测功机在可靠性方面均提供了足够的结果,而TKK测功机更有效。为了在儿童中获得最大的效果,用伸直的肘进行手握力量测试似乎是最合适的位置。当使用DynX测功机时,两个肘部位置之间的差异较小但仍然很明显(13.84±3.22 kg vs.13.35±3.01 kg,右侧p = 0.035,13.35±2.95 kg vs.12.77±2.96 kg,p = 0.003左手)。结论:两种测功机在可靠性方面均提供了足够的结果,而TKK测功机更有效。为了在儿童中获得最大的效果,用伸直的肘进行手握力量测试似乎是最合适的位置。当使用DynX测功机时,两个肘部位置之间的差异较小但仍然很明显(13.84±3.22 kg vs.13.35±3.01 kg,右侧p = 0.035,13.35±2.95 kg vs.12.77±2.96 kg,p = 0.003左手)。结论:两种测功机在可靠性方面均提供了足够的结果,而TKK测功机更有效。为了在儿童中获得最大的效果,用伸直的肘进行手握力量测试似乎是最合适的位置。
更新日期:2020-10-30
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