Research Laboratory Education, Motricité, Sport et Santé (EM2S) LR19JS01, High Institute of Sport and Physical Education of Sfax, University of Sfax, Tunisia,Tunisia.
J Sport Rehabil. 2022 Sep 20;32(1):91-95. doi: 10.1123/jsr.2022-0030. Print 2023 Jan 1.
The Y Balance Test (YBT) is a simple, reliable, cost-effective screening test. It is used to evaluate dynamic balance as well as to determine the potential risk of injury of the lower limbs. The reliability of YBT has been widely reported in the general population. However, there are no studies evaluating the reliability of YBT use in athletes with intellectual disability (ID). The aim of the study was to examine the reliability of the YBT in runners with ID.
A reliability study.
Twelve male runners (short-distance running) with ID (age 25.1 [4.50] y, height 169.1 [4.2] cm, weight 69.5 [5.5] kg, and intelligence quotient 60.8 [2.4]). The YBT was used to measure participants' dynamic balance in the anterior, posteromedial, and posterolateral reach directions. The analysis used the normalized values to the relative length of the lower limbs. A 1-way (trial) repeated-measures (5) analysis of variance for each direction was used. Intraclass correlation coefficient, standard error of measurement, and minimal detectable change were computed to assess the reliability of the YBT between trials.
After 6 practice trials, 3 out of 5 consecutive ones achieved results stabilization for all directions and both legs (P < .05). The intraclass correlation coefficient, standard error of measurement, and minimal detectable change values for all trials ranged from .76 to .87, 5% to <7%, and 11% to <15%, respectively.
The YBT is a highly reliable tool to measure the dynamic balance of male runners with ID. Therefore, it is recommended to perform 6 practice trials and 3 measurements in these runners.
Y 平衡测试（YBT）是一种简单、可靠且具有成本效益的筛查测试。它用于评估动态平衡，并确定下肢受伤的潜在风险。YBT 的可靠性已在普通人群中得到广泛报道。然而，目前尚无研究评估 YBT 在智障运动员中的使用可靠性。本研究旨在检验智障运动员使用 YBT 的可靠性。
可靠性研究。
12 名男性智障短跑运动员（年龄 25.1[4.50]岁，身高 169.1[4.2]cm，体重 69.5[5.5]kg，智商 60.8[2.4]）参与了本研究。YBT 用于测量参与者在前后、后内侧和后外侧三个方向的动态平衡。分析使用了下肢相对长度的归一化值。每个方向均采用单向（试验）重复测量（5）方差分析。计算组内相关系数、测量误差和最小可检测变化，以评估试验间 YBT 的可靠性。
经过 6 次练习试验后，有 3 名运动员在所有 5 次连续试验中达到了所有方向和双腿的结果稳定（P<.05）。所有试验的组内相关系数、测量误差和最小可检测变化值分别为 0.76 至 0.87、5%至<7%和 11%至<15%。
YBT 是一种高度可靠的工具，可用于测量智障男性运动员的动态平衡。因此，建议在这些运动员中进行 6 次练习试验和 3 次测量。
