Programa de Pós Graduação em Ciências da Reabilitação e Desempenho Físico-Funcional, Faculdade de Fisioterapia da Universidade Federal de Juiz de Fora (UFJF), Juiz de Fora, MG, Brazil.
Programas de Mestrado e Doutorado em Fisioterapia da Universidade Cidade de São Paulo (UNICID), São Paulo, SP, Brazil.
J Bodyw Mov Ther. 2024 Apr;38:520-524. doi: 10.1016/j.jbmt.2024.03.062. Epub 2024 Mar 27.
Asymmetries and poor Y balance test (YBT) performance are associated with an increased risk of injuries in athletes. The aim of this study was to investigate the association between YBT performance with biomechanical variables in runners.
The runners underwent the YBT, followed by the assessment of center of pressure, plank position, muscle strength (MS) of hip flexors, extensors, abductors, and external rotators, knee extensors, ankle dorsiflexion range of motion (ROM), Q angle, forefoot alignment, and passive hip internal rotation. Associations between variables were examined using multiple linear regression models with the Bayesian Information Criterion.
122 cases were analyzed. The R values were 0.38; 0.05; 0.06; and 0.15 for the anterior, posteromedial, posterolateral and composite directions models, respectively. The anterior reach in the YBT was associated with ankle dorsiflexion ROM [Sβ 95%IC: 0.43 (0.32-0.55)], passive hip internal rotation [Sβ 95%IC: 0.35 (0.24-0.47)], MS of the hip extensors [Sβ 95%IC: 0.19 (0.07-0.31)] and forefoot alignment [Sβ 95%IC: 0.14 (-0.25-0.02)]. The posteromedial and posterolateral reach were associated with MS of the hip flexors [Sβ 95%IC: 0.23 (0.09-0.37) and 0.24 (0.11-0.38)], respectively. The composite score was associated with MS of the hip flexors [Sβ 95%IC: 0.31 (0.18-0.45)], ankle dorsiflexion ROM [Sβ 95%IC: 0.24 (0.10-0.37)] and Q angle [Sβ 95%IC: 0.18 (0.04-0.31)].
YBT performance in different directions demonstrated specific associations with key biomechanical factors.
不对称和较差的 Y 平衡测试（YBT）表现与运动员受伤的风险增加有关。本研究的目的是调查跑步者的 YBT 表现与生物力学变量之间的关系。
跑步者进行 YBT 测试，然后评估中心压力、平板位置、髋关节屈肌、伸肌、外展肌、外旋肌、膝关节伸肌、踝关节背屈活动范围（ROM）、Q 角、前足对齐和被动髋关节内旋的肌肉力量。使用具有贝叶斯信息准则的多元线性回归模型检查变量之间的关联。
分析了 122 例。YBT 的前向、后内侧、后外侧和综合方向模型的 R 值分别为 0.38、0.05、0.06 和 0.15。YBT 的前向伸展与踝关节背屈 ROM 相关 [β S95%IC：0.43（0.32-0.55）]、被动髋关节内旋 [β S95%IC：0.35（0.24-0.47）]、髋关节伸肌的 MS [β S95%IC：0.19（0.07-0.31）] 和前足对齐 [β S95%IC：0.14（-0.25-0.02）]。后内侧和后外侧伸展与髋关节屈肌的 MS 相关 [β S95%IC：0.23（0.09-0.37）和 0.24（0.11-0.38）]。综合得分与髋关节屈肌的 MS [β S95%IC：0.31（0.18-0.45）]、踝关节背屈 ROM [β S95%IC：0.24（0.10-0.37）] 和 Q 角 [β S95%IC：0.18（0.04-0.31）] 相关。
不同方向的 YBT 表现与关键生物力学因素有特定的关联。
