慢性踝关节不稳患者功能与机械性不稳多种测量指标之间的相关性
Correlations among multiple measures of functional and mechanical instability in subjects with chronic ankle instability.
作者信息
Hubbard Tricia J, Kramer Lauren C, Denegar Craig R, Hertel Jay
机构信息
Department of Kinesiology, The University ofNorth Carolina at Charlotte, Charlotte, NC 28223, USA.
出版信息
J Athl Train. 2007 Jul-Sep;42(3):361-6.
CONTEXT
Although dozens of individual mechanical and functional insufficiencies have been reported in those with chronic ankle instability (CAI), no authors to date have examined the relationship of the insufficiencies to each other. Therefore, studying both the functional and mechanical insufficiencies in the same experimental design will provide valuable information.
OBJECTIVE
To determine the relationships among the numerous functional and mechanical insufficiencies purported to cause CAI.
DESIGN
Descriptive study with a correlational design.
SETTING
Medical center and research laboratory.
PATIENTS OR OTHER PARTICIPANTS
Thirty subjects with unilateral CAI (15 males and 15 females: age = 20.3 +/- 1.3 years; height = 172.5 +/- 10.7 cm; mass = 72.9 +/- 15.8 kg).
MAIN OUTCOME MEASURE(S): Twenty-six measures of mechanical insufficiencies (ankle laxity and hypomobility) and functional insufficiencies (subjective level of function, static and dynamic balance, ankle and hip strength) were taken on both limbs of all subjects. Bivariate correlations using Pearson product moment coefficients were calculated between all dependent variables measured in the unstable ankles. The level of significance was set a priori at P < or = .05 for all analyses.
RESULTS
A number (35) of significant bivariate correlations were identified. Most (32) of these significant relationships were found between functional instability measures ( r = .38 to .96). Three significant relationships were noted between measures of functional (balance, strength) and mechanical (laxity, hypomobility) instability ( r = .47 to .52). No significant relationships were found between the different mechanical instability measures.
CONCLUSIONS
Certain measures of functional instability were significantly correlated and may be redundant. Additionally, the significant correlations between measures of functional (balance, strength) and mechanical instability (laxity, hypomobility) demonstrate that the 2 factors are not completely dichotomous and need to be examined together.
背景
尽管已有报道称慢性踝关节不稳（CAI）患者存在数十种个体机械性和功能性不足，但迄今为止尚无作者研究这些不足之间的相互关系。因此，在同一实验设计中研究功能性和机械性不足将提供有价值的信息。
目的
确定据称导致CAI的众多功能性和机械性不足之间的关系。
设计
具有相关性设计的描述性研究。
地点
医疗中心和研究实验室。
患者或其他参与者
30名单侧CAI患者（15名男性和15名女性：年龄=20.3±1.3岁；身高=172.5±10.7厘米；体重=72.9±15.8千克）。
主要观察指标
对所有受试者的双下肢进行26项机械性不足（踝关节松弛度和活动度降低）和功能性不足（主观功能水平、静态和动态平衡、踝关节和髋关节力量）的测量。使用Pearson积矩系数计算不稳定踝关节测量的所有因变量之间的双变量相关性。所有分析的显著性水平预先设定为P≤0.05。
结果
确定了一些（35个）显著的双变量相关性。其中大多数（32个）显著关系存在于功能性不稳定测量之间（r=0.38至0.96）。在功能性（平衡、力量）和机械性（松弛度、活动度降低）不稳定测量之间发现了三个显著关系（r=0.47至0.52）。不同机械性不稳定测量之间未发现显著关系。
结论
某些功能性不稳定测量显著相关，可能存在冗余。此外，功能性（平衡、力量）和机械性不稳定（松弛度、活动度降低）测量之间的显著相关性表明这两个因素并非完全二分，需要一起研究。
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