High-Intensity Interval Cycle Ergometer Training in Parkinson's Disease: Protocol for Identifying Individual Response...

Area of Science:

• Neuroscience
• Exercise Physiology
• Rehabilitation Medicine

Background:

• Parkinson's disease (PD) presents significant motor and non-motor challenges impacting quality of life.
• Current PD treatments are symptomatic; disease-modifying rehabilitation strategies promoting neuroplasticity are needed.
• High-intensity interval training (HIIT) shows potential for enhancing neuroplasticity in PD with brief, less burdensome sessions.

Purpose of the Study:

• To evaluate the effects of 4-week HIIT versus continuous aerobic exercise (CAE) on motor and non-motor outcomes in PD.
• To explore the relationship between HIIT, changes in motor/non-motor performance, and blood biomarkers of neuroplasticity and neurodegeneration.

Main Methods:

• Employed a single-subject ABACA/ACABA design with frequent repeated measurements over 28 weeks.
• Four participants with PD underwent alternating blocks of HIIT (30 min) or CAE (50 min), 3x/week, interspersed with baseline periods.
• Outcome measures included MDS-UPDRS, functional mobility, activities of daily living, cognition, mood, sleep, quality of life, and blood biomarkers (BDNF, NfL, α-synuclein).

Main Results:

• Visual analysis and longitudinal regression identified individual response patterns to HIIT and CAE.
• Changes in motor/non-motor performances were assessed in relation to biomarker levels.
• The study provides data on the impact of HIIT on neuroplasticity and neurodegeneration markers in PD.

Conclusions:

• HIIT demonstrates potential as a therapeutic intervention for Parkinson's disease, influencing both clinical outcomes and biological markers.
• Further research is warranted to elucidate the specific mechanisms and long-term effects of HIIT in PD management.
• This study contributes to understanding exercise-induced neuroplasticity and its biomarkers in the context of PD.