PDF(Pubmed)
Abstract：
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]; p = 0.025); inferolateral direction (β = -1.5; 95% CI [-2.1 to -0.8]; p = 0.001); and composite score (β = -0.8; 95% CI [-1.3 to -0.3]; p = 0.002). From these, AJPS at 90°IR/ABD mainly explained the variability of YBT-UQ (inferolateral direction) performance (R2 = 0.32; %R2 = 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.
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]; p = 0.025); inferolateral direction (β = -1.5; 95% CI [-2.1 to -0.8]; p = 0.001); and composite score (β = -0.8; 95% CI [-1.3 to -0.3]; p = 0.002). From these, AJPS at 90°IR/ABD mainly explained the variability of YBT-UQ (inferolateral direction) performance (R2 = 0.32; %R2 = 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.
摘要：
已经确定本体感觉在肩部稳定性和运动性能中起决定性作用。尽管如此,主动关节位置感(AJPS)与上肢功能表现测试之间缺乏明确的关联.这项研究的目的是通过以下功能测试来确定肩部复合体的AJPS是否与大学排球运动员的表现相关：Y-平衡测试-上季度（YBT-UQ），闭合动力学链上端稳定性试验(CKCUEST),和坐式药球投掷（SMBT）。次要目的是调查通过AJPS的本体感觉误差的大小是否有能力作为功能测试分数的预测因子。
方便抽样的横断面研究。健康的大学排球运动员（≥12小时/周训练），30名男性和22名女性，包括年龄在18至26岁之间。肩部AJPS(90°屈曲(90°弯曲),外展90°内旋90°(90°IR/ABD),外展90°外旋90°(90°ER/ABD)和三个上肢功能性能测试(YBT-UQ,CKCUEST和SMBT）进行了评估。Pearson检验和逐步多元线性回归分析用于确定结果测量之间可能的关联和关系。分别。
分析表明，90°IR/ABD和90°ER/ABD的AJPS是唯一与YBT-UQ和SMBT相关的本体感受变量。尽管有这些关系,仅在90°IR/ABD下的AJPS与YBT-UQ在以下方面的表现相关:上外侧方向(β=-0.7;95%CI[-1.3至0.1];p=0.025);下外侧方向(β=-1.5;95%CI[-2.1至-0.8];p=0.001);和综合评分(β=-0.8;95%CI[-1.3至-0.3];p=2)。从这些,90°IR/ABD的AJPS主要解释了YBT-UQ（下外侧方向）性能的变异性（R2=0.32；％R2=0.32）。我们的发现允许本体感觉作为功能运动过程中上肢运动控制的促成因素的可能扩展作用。需要进一步的研究来探索和区分本体感受之间的关联，运动控制和运动性能涉及上肢。
方便抽样的横断面研究。健康的大学排球运动员（≥12小时/周训练），30名男性和22名女性，包括年龄在18至26岁之间。肩部AJPS(90°屈曲(90°弯曲),外展90°内旋90°(90°IR/ABD),外展90°外旋90°(90°ER/ABD)和三个上肢功能性能测试(YBT-UQ,CKCUEST和SMBT）进行了评估。Pearson检验和逐步多元线性回归分析用于确定结果测量之间可能的关联和关系。分别。
分析表明，90°IR/ABD和90°ER/ABD的AJPS是唯一与YBT-UQ和SMBT相关的本体感受变量。尽管有这些关系,仅在90°IR/ABD下的AJPS与YBT-UQ在以下方面的表现相关:上外侧方向(β=-0.7;95%CI[-1.3至0.1];p=0.025);下外侧方向(β=-1.5;95%CI[-2.1至-0.8];p=0.001);和综合评分(β=-0.8;95%CI[-1.3至-0.3];p=2)。从这些,90°IR/ABD的AJPS主要解释了YBT-UQ（下外侧方向）性能的变异性（R2=0.32；％R2=0.32）。我们的发现允许本体感觉作为功能运动过程中上肢运动控制的促成因素的可能扩展作用。需要进一步的研究来探索和区分本体感受之间的关联，运动控制和运动性能涉及上肢。
