用客观方法确定保持元件在静止环上的保持时间

IF 0.6 Q4 SPORT SCIENCES
T. Lehmann, Alexander Winter, Alexander Seemann-Sinn, F. Naundorf
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引用次数: 4

摘要

在艺术体操静止环比赛中,抱环动作的持续时间是评判动作的关键因素。如果保持时间太短,运动员可能会被判不承认一个元素。动态测量和运动学测量方法为裁判评估保持时间的持续时间提供了支持。在本研究中,提出了具有两种不同变体(dms10和dms5)的动力学方法以及基于训练过的神经网络的运动学方法(km),并检查了它们在确定保持时间时与法官评估的一致性。为了检验一致性,采用Cohen’s kappa (k)计算a)一致性百分比和b)互判者信度。两种动态测量方法与法官保持时间评价的一致性百分比分别为83.5% (dms10)和51.7% (dms5)。km的满意率为38.8%。dms10和dms5的信度一致性为中等(k = 0.58)和一般(k = 0.23),而kms的信度一致性较差(k = 0.02)。结果支持dms10作为一种可行和可靠的方法来帮助裁判评估静止环的保持时间。Dms5和km(目前发展阶段)不适合作为法官支持的手段。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
USE OF OBJECTIVE METHODS TO DETERMINE THE HOLDING TIME OF HOLD ELEMENTS ON STILL RINGS
The duration of holding elements represents a critical factor for judging routines on the still rings in artistic gymnastics. Athletes can be penalized with non-recognition of an element if the hold time is too short. Dynamometric and kinematic measuring methods offer the possibility to provide support to judges in evaluating the duration of the hold time. In this study a dynamometric method with two different variants (dms10 and dms5) as well as a kinematic method (kms) based on a trained neural network were presented and examined with regard to their agreement with judges’ evaluations when determining the hold time. To check the agreement, a) the percentage agreement and b) the interrater reliability were calculated using Cohen's kappa (k). The two dynamometric methods showed a percentage agreement of 83.5% (dms10) and 51.7% (dms5) with the hold time evaluation by judges. The percentage agreement of the kms was 38.8%. The interrater reliability showed for the dms10 a moderate (k = 0.58) and for the dms5 a fair (k = 0.23) agreement, while the kms showed a poor (k = 0.02) match. The results supported dms10 for its possible use as a practicable and reliable method to assist judges in evaluating hold times on the still rings. Dms5 and kms (in the current development stage) were not suitable as means of judges’ support.
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来源期刊
CiteScore
1.30
自引率
33.30%
发文量
48
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