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首页> 外文期刊>American Journal of Sports Science and Medicine >Accuracy of Force Exertion in Each Demanded Value Based on Subjective Information and Laterality
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Accuracy of Force Exertion in Each Demanded Value Based on Subjective Information and Laterality

机译：基于主观信息和横向的每个需求值中力的施加精度

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This study aimed to examine the direction of errors between demand values and exerted forces using submaximal grip strength based on laterality. Subjects were 100 healthy young males (age: 22.4 ± 2.8 years). After maximum grip strength (MGS) was measured, each subject exerted handgrip for each demanded value (20%, 40%, 60%, and 80%), twice with a 2-min rest between each trial. The means of all subjects were used for statistical analysis. Evaluation parameters were errors between exertion and demand values, which are relative values based on MGS. The Shapiro-Wilk test was performed to confirm the normality of the frequency distribution. It was confirmed that errors in demand values, except for 80% in the dominant hand, show a normal distribution. The result of two-way repeated measures analysis of variance (ANOVA; demanded values × dominanton-dominant) and multiple comparisons showed that significant differences were found among demand values, except between 60% and 80% in the dominant hand, and the error was greater as follows: 20% > 40% > 60% and 80%. The error in the non-dominant hand was greater in the order of 20%, 40%, 60%, and 80%. A significant difference was found between errors of the dominant and non-dominant hands in demand values of 20%–60%, and the error was smaller in the dominant hand. Test of independence for the frequency difference of exertion direction showed significant difference in all demand values except for 80%; 20% and 40% did more in the positive direction (overexertion) in both hands, and 60% did more in the negative direction (underexertion) in the dominant hand and in the plus direction in the non-dominant hand. In conclusion, in the dominant hand, the error of grip force exertion toward demand values is greater in demand values under 60% and small grip vales are exerted. In contrast, in the non-dominant hand，the error of grip force exertion toward demand values is greater in demand values under 80% and grip values are exerted largely in demand values under 60%. Accuracy of force exertion differs among demand values, and laterality is found in low demand values of 20%–60%.
机译：这项研究的目的是使用基于横向度的次最大握力来检查需求值和施加力之间的误差方向。受试者为100名健康的年轻男性（年龄：22.4±2.8岁）。在测量最大抓地力（MGS）后，每个受试者针对每个要求的值（20％，40％，60％和80％）施加握力，两次，每次试验之间休息2分钟。所有受试者的平均值均用于统计分析。评估参数是劳累值和需求值之间的误差，这些误差是基于MGS的相对值。进行Shapiro-Wilk测试以确认频率分布的正态性。可以确认的是，需求值的误差（占主导地位的误差为80％）显示出正态分布。双向重复测量方差分析（ANOVA;需求值×显性/非显性）的结果和多次比较的结果表明，需求值之间存在显着差异，除了优势手的60％和80％之间以及误差较大：20％> 40％> 60％和80％。非优势手的误差较大，依次为20％，40％，60％和80％。在需求值的20％–60％之间，优势手和非优势手的误差之间存在显着差异，而优势手的误差较小。施加方向频率差异的独立性测试显示，除​​80％以外，所有需求值均存在显着差异。在优势手中，有20％和40％的人在正方向（过度用力）方面做得更多，在优势手中，有60％和40％的人在负方向（过度用力）方面做得更多，而在非优势手中，正方向做得更多。总之，在优势手中，在60％以下的需求值中，对需求值施加的抓地力误差较大，并且施加的抓地力小。相反，在非优势手中，在80％以下的需求值中，握力对需求值的误差较大，而在60％以下的需求值中，握力值的作用较大。在需求值之间，施加力的准确性有所不同，在20％–60％的低需求值中发现了横向性。

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