Test-retest reliability of stride length-cadence gait relationship in Parkinson's disease.

Introduction: The gait pattern in Parkinson´s disease (PD) subjects is characterized by a specific deficit of the internal regulation of the stride length (SL), while the control of the cadence (Cad) remains intact. The purpose of the present study was to evaluate the reliability of the stride length-cadence relationship (SLCrel) in a group of PD subjects.

Methods: Thirty five PD subjects performed two sessions, separated by a three month resting period.