Effectiveness of Exercise on the Sequence Effect in Parkinson's Disease

Area of Science:

• Neurology
• Movement Disorders
• Rehabilitation Science

Background:

• Parkinson's disease (PD) is characterized by bradykinesia, impacting motor control.
• The sequence effect (SE) is a key component of bradykinesia in PD.
• Understanding interventions for SE is crucial for PD management.

Purpose of the Study:

• To investigate the impact of motor training on the sequence effect (SE) in Parkinson's disease (PD).
• To assess if motor training benefits bradykinesia and SE in early PD patients.

Main Methods:

• Seven de novo PD patients underwent motor training (pentagon drawing) across four visits.
• Assessments were conducted before and after training, both before and after medication initiation.
• Bradykinesia severity and SE were evaluated at each visit.

Main Results:

• Motor training significantly improved bradykinesia in drug-naïve PD patients (p = 0.018).
• SE severity significantly decreased in drug-naïve PD patients post-training (p = 0.028).
• Improvements in bradykinesia and SE were less significant after medication initiation.

Conclusions:

• Regular motor training shows potential benefits for managing the sequence effect in Parkinson's disease.
• Motor training may be a valuable adjunctive therapy for early-stage PD.