High-Intensity Interval Training (HIIT) for ALS
Also known as: HIIT, High-intensity exercise, Sprint interval training
Moderate exercise may maintain motor neuron function and muscle quality in ALS, though excessive intensity is debated.
Mechanism of Action
Exercise activates BDNF and IGF-1 signaling for motor neuron trophic support, maintains neuromuscular junction integrity, reduces oxidative stress through adaptive antioxidant responses, and improves respiratory muscle endurance.
General mechanism: High-intensity cardiovascular stress. BDNF/irisin release, PGC-1α activation, NK cell mobilization, insulin sensitization, angiogenesis.
Current Evidence
Moderate-intensity exercise is generally recommended for ALS. High-intensity exercise is controversial due to potential motor neuron overload. Individualized programs essential.
Clinical Status: Moderate exercise recommended. High-intensity debated. Exercise physiologists crucial.
Safety Profile
Generally safe when appropriately prescribed. Cardiac screening recommended for sedentary individuals. Adapt to patient capacity. ALS: moderate intensity preferred.
Key Research Questions
- What exercise intensity is safe and beneficial for ALS motor neurons?
- Can respiratory muscle training slow pulmonary decline in ALS?