Parkinson's Disease Exercise Canberra.

Parkinson's disease is a progressive neurodegenerative disorder affecting the dopaminergic neurons of the substantia nigra, leading to motor symptoms including tremor, rigidity, bradykinesia, and postural instability. It is the second most common neurodegenerative disease after Alzheimer's, affecting approximately 100,000 Australians. Non-motor symptoms including depression, cognitive impairment, autonomic dysfunction, and sleep disturbance are equally prevalent and impactful.

High-intensity aerobic exercise is now recognised as potentially neuroprotective in Parkinson's disease, with research demonstrating changes in dopaminergic signalling, improved motor function scores (UPDRS-III), enhanced balance and gait quality, and reduced fall risk. The SPARX2 and ENROLL-HD trials, along with multiple systematic reviews, support high-intensity aerobic training as the most evidence-backed exercise modality for Parkinson's. James designs programs informed by this evidence base while tailoring intensity, modality, and progression to the individual's current stage and motor function.

Levodopa/Carbidopa (Sinemet, Madopar), the gold standard pharmacological treatment. Levodopa converts to dopamine in the brain and significantly improves motor function. Exercise sessions are ideally timed to coincide with peak medication effect ("on" periods) to maximise motor performance and safety. James works with clients and their neurologists to schedule sessions appropriately around medication timing.

Dopamine agonists (pramipexole, ropinirole) are often used in early Parkinson's or as adjuncts to levodopa. They can cause orthostatic hypotension, so James monitors blood pressure responses during exercise and modifies position changes accordingly.

MAO-B inhibitors (selegiline, rasagiline) reduce dopamine breakdown. Generally well-tolerated during exercise, though cardiovascular responses should be monitored.

Amantadine is used for dyskinesia management in advanced disease. Clients on amantadine may have unpredictable involuntary movements during exercise that require program modification.

Understanding medication status, timing, and "on/off" fluctuations is fundamental to safe and effective exercise programming in Parkinson's disease. James always collects this information as part of the initial assessment.

High-intensity aerobic exercise is the primary modality supported by the strongest evidence base. This typically involves cycling (stationary or cycling training such as the Theracycle protocol), treadmill training, or Nordic walking at 70–85% of maximum heart rate. The SPARX2 trial demonstrated that high-intensity treadmill training at 80–85% HRmax produced significant improvements in UPDRS-III motor scores and gait speed compared to moderate intensity.

Resistance training addresses the muscle weakness and postural changes associated with Parkinson's. Programs emphasise anti-gravity postural muscles, hip extensors, and scapular stabilisers, with progressive overload protocols adjusted for tremor and rigidity.

Balance and gait training including dual-task training (cognitive and motor task simultaneously) has strong evidence for falls reduction and motor function improvement. James incorporates reactive balance training, obstacle navigation, and attention-demanding walking tasks appropriate to the client's stage.

LSVT BIG (Lee Silverman Voice Treatment – BIG) principles, amplitude-focused, high-effort movements, are incorporated into programs where appropriate, particularly for clients with bradykinesia and reduced movement amplitude.