Concentric Evertor Strength Differences and Functional Ankle Instability: A Meta-Analysis

摘要: Objective: To determine whether concentric evertor muscle weakness was associated with functional ankle instability (FAI). Data Sources: We conducted an electronic search through November 2007, limited to English, and using PubMed, PreCINAHL, CINAHL, SPORTDiscus. A forward the Science Citation Index on studies from search. Finally, we a hand of all selected contacted respective authors identify additional studies. included peer-reviewed manuscripts, dissertations, theses. Study Selection: evaluated titles abstracts identified by searches. Studies were consensus reviewed only if they participants FAI or chronic strength outcomes. in analysis means SDs (or other relevant statistical information, such as P values t group n’s) reported for stable groups ankles). Extraction: extracted independently, cross-checked accuracy, outcomes eversion strength. rated each study quality. Outcomes coded either fast slow velocity (ie, equal greater than 1106/s less 1106/s, respectively). Synthesis: means, SDs, sample sizes appropriate information) uninjured The standard difference (SDM) outcome calculated pooled SD. tested individual overall SDMs Z statistic comparisons between velocities Q statistic. Our revealed that ankles weaker (SDM 5 0.224, 4.0, , .001, 95% confidence interval 0.115, 0.333). found no fast- slow-velocity (SDMFast 0.189, SDMSlow 0.244, 29.9, df 24, .187). Because small SDM, this method measuring clinical setting may need be reevaluated.