Fig. 4From: Proposal of a new conceptual gait model for patients with Parkinson’s disease based on factor analysisStandardized solution of confirmatory factor analysis for our model. Circles from ε1 to ε8 represent the measurement errors. One-headed arrows represent correlations while two-headed arrows represent covariance. For each variable, values at the bottom represent errors, while values at the top represent Standardized Regression WeightsBack to article page