Intercorrelations and Internal Consistency of Limb Muscle-Action Strengths of Patients with Renal Disease

Abstract

This study involved the retrospective analysis of instrumented measurements of strength from six muscle actions of 15 patients with renal disease. Most measurements were correlated significantly (mean Pearson r = .78). The measurements also showed strong internal consistency (Cronbach α > .92). These findings extend those obtained in studies of healthy individuals and patients with stroke and suggest the presence of a common underlying construct, limb muscle strength.