Dual-task intervention based on trail making test: Effects on Parkinson's disease.

Objective: To evaluate the effectiveness of an intervention with dual task based on trail making test on gait, cognition and daily activities execution in individuals with Parkinson's disease.

Design: Randomized controlled trial.

Methodology: 10 individuals with Parkinson's Disease (PD) were divided into dual task group (DTG) and control group (CG).