The Effects of Adapted Tango on Dynamic Balance and Dual-Task Performance in Parkinson's Disease

Area of Science:

• Neurology
• Rehabilitation Science
• Movement Disorders

Background:

• Parkinson's disease (PD) presents challenges in dynamic balance, dual-tasking, and muscle activity modulation.
• Cognitive and muscular difficulties are characteristic of PD, impacting daily function.
• Adapted Tango (AT) is an intervention explored for its potential benefits in PD management.

Purpose of the Study:

• To investigate the effects of Adapted Tango (AT) on dynamic balance, dual-tasking, and leg muscle antagonist activity in individuals with Parkinson's disease (PD).
• To evaluate changes in performance metrics before, immediately after, and four weeks post-intervention.
• To assess the impact of AT on muscle activity modulation using Modulation Indices (MI).

Main Methods:

• A cohort of 33 individuals with mild-to-moderate PD were randomized into an AT group (n=16) or a control group (n=17).
• Dual-task performance was assessed using Serial 7 walking tasks and the Dynamic Gait Index (DGI).
• Electromyography (EMG) data was used to calculate Modulation Indices (MI) for muscle activity.

Main Results:

• The AT group showed improvements in dual-task performance, though not statistically significant compared to controls (p>0.05).
• Significant enhancements in Dynamic Gait Index (DGI) scores were observed in the AT group versus the control group (p<0.05).
• No significant changes in muscle activity modulation (MI) were found post-intervention (p>0.05).

Conclusions:

• Adapted Tango demonstrates potential in improving dynamic balance for individuals with Parkinson's disease.
• While dual-tasking benefits were not statistically significant, DGI improvements suggest a positive impact on gait and balance.
• Further large-scale randomized trials are recommended to validate these findings and guide clinical applications of AT for PD.