Gait and axial postural abnormalities correlations in Parkinson's disease: A multicenter quantitative study

•Gait impairment and postural abnormalities (PA) are common features of advanced PD.•Severe PA are more common in older PD patients and with more severe disease.•Severe PA is associated with lower velocity and gait cadence.•Personalized rehabilitation strategies should target specific postural and gait alterations.