Escuela de Kinesiología, Faculta de Salud, Universidad Santo Tomás, Chile.
Magister en Ciencias de la Actividad Física y Deporte Aplicadas al Entrenamiento, Rehabilitación y Reintegro Deportivo, Facultad de Salud, Universidad Santo Tomás, Chile.
PeerJ. 2022 Jun 9;10:e13564. doi: 10.7717/peerj.13564. eCollection 2022.
It has been well established that proprioception plays a decisive role in shoulder stability and sport performance. Notwithstanding, there is a lack of clear association between active joint position sense (AJPS) and the performance of upper-extremity functional performance tests. The aim of this study was to determine whether the AJPS of the shoulder complex is associated with the performance of college volleyball players with the following functional tests: Y-Balance Test-Upper Quarter (YBT-UQ), Closed Kinetic Chain Upper-Extremity Stability Test (CKCUEST), and Seated Medicine Ball Throw (SMBT). The secondary aim was to investigate whether the magnitude of the proprioception error through the AJPS had the ability to act as a predictor for functional test scores.
Cross-sectional study with a convenience sampling. Healthy college volleyball players (≥12 h of training/week), 30 males and 22 females, between 18 and 26 years of age were included. AJPS of the shoulder (90° of flexion (90°Flex), 90° of internal rotation at 90° of abduction (90°IR/ABD), 90° of external rotation at 90° of abduction (90°ER/ABD)) and three upper-extremity functional performance tests (YBT-UQ, CKCUEST and SMBT) were assessed. A Pearson's test and a stepwise multiple linear regression analysis were used to determine possible associations and relationships between outcome measures, respectively.
The analysis revealed that AJPS at 90°IR/ABD and 90°ER/ABD were the only proprioceptive variables with an association to the YBT-UQ and SMBT. Despite these relationships, only the AJPS at 90°IR/ABD was associated with the performance of the YBT-UQ in; superolateral direction (β = -0.7; 95% CI [-1.3 to 0.1]; = 0.025); inferolateral direction (β = -1.5; 95% CI [-2.1 to -0.8]; = 0.001); and composite score (β = -0.8; 95% CI [-1.3 to -0.3]; = 0.002). From these, AJPS at 90°IR/ABD mainly explained the variability of YBT-UQ (inferolateral direction) performance (R = 0.32; %R = 0.32). Our findings allow for a possible expanded role for proprioception as a contributing factor in upper limb motor control during functional movements. Further research is required to explore and distinguish the associations between proprioception, motor control and sport performance involving the upper limbs.
本体感觉在肩部稳定性和运动表现中起着决定性的作用，这一点已经得到了充分的证明。然而，主动关节位置感（AJPS）与上肢功能表现测试的表现之间缺乏明确的关联。本研究旨在确定肩复合体的 AJPS 是否与以下功能测试的大学生排球运动员的表现相关：Y 平衡测试上半部分（YBT-UQ）、闭式动力链上肢稳定性测试（CKCUEST）和坐姿药球投掷（SMBT）。次要目的是研究通过 AJPS 感知的本体感觉误差的幅度是否能够作为功能测试分数的预测因子。
采用便利抽样的横断面研究。纳入了 30 名男性和 22 名女性健康的大学生排球运动员（每周训练≥12 小时），年龄在 18 至 26 岁之间。评估了肩部的 AJPS（90°屈曲（90°Flex）、90°外展时 90°内旋（90°IR/ABD）、90°外展时 90°外旋（90°ER/ABD））和三个上肢功能表现测试（YBT-UQ、CKCUEST 和 SMBT）。使用 Pearson 检验和逐步多元线性回归分析分别确定了结果测量之间的可能关联和关系。
分析显示，90°IR/ABD 和 90°ER/ABD 的 AJPS 是与 YBT-UQ 和 SMBT 相关的唯一本体感觉变量。尽管存在这些关系，但只有 90°IR/ABD 的 AJPS 与 YBT-UQ 在超外侧方向（β=-0.7；95%CI[-1.3 至 0.1]； = 0.025）、下外侧方向（β=-1.5；95%CI[-2.1 至-0.8]； = 0.001）和综合评分（β=-0.8；95%CI[-1.3 至-0.3]； = 0.002）相关。其中，90°IR/ABD 的 AJPS 主要解释了 YBT-UQ（下外侧方向）表现的可变性（R=0.32；%R=0.32）。我们的发现允许本体感觉作为功能运动中上肢运动控制的一个贡献因素，可能发挥更大的作用。需要进一步的研究来探索和区分涉及上肢的本体感觉、运动控制和运动表现之间的关联。
