Velocity-Based Training Affects Function, Strength, and Power in Persons with Parkinson's Disease.

Area of Science:

• Exercise Physiology
• Neurological Rehabilitation
• Sports Science

Background:

• Parkinson's disease (PD) is a neurodegenerative disorder affecting motor function.
• Velocity-based training (VBT) is typically used by athletes but its effects on PD are unknown.
• Optimizing training for PD requires understanding novel methodologies like VBT.

Purpose of the Study:

• To investigate the effects of VBT on functional performance, strength, and power in individuals with PD.
• To compare two VBT protocols: 10% and 30% velocity loss thresholds.
• To determine if VBT alters force-velocity relationships in PD.

Main Methods:

• Twenty-one participants with PD were randomized into 10% or 30% VBT groups.
• Supervised VBT was conducted 3 times per week for 12 weeks.
• Assessments included gait speed, sit-to-stand test, 1RM, and peak power (CP and LP exercises).

Main Results:

• Significant improvements were observed in maximal gait speed, sit-to-stand performance, and peak power.
• Strength gains (1RM) were significant for both chest press and leg press exercises.
• No significant changes were found in the force-velocity relationship at peak power.

Conclusions:

• Velocity-based training is an effective modality for enhancing functional capacity, strength, and power in individuals with PD.
• Both 10% and 30% velocity loss protocols yield positive outcomes.
• Further research could explore long-term effects and optimal VBT prescription for PD.