Active-Assisted Cycling Improves Tremor and Bradykinesia in Parkinson's Disease

Ridgel AL, Peacock CA, Fickes EJ, Kim C-H. Active-assisted cycling improves tremor and bradykinesia in Parkinson's disease. Arch Phys Med Rehabil 2012;93:2049-54. Objectives: To develop a rapid cadence cycling intervention (active-assisted cycling [AAC]) using a motorized bike and to examine physiological perimeters during these sessions in individuals with Parkinson's disease (PD). A secondary goal was to examine whether a single session of AAC at a high cadence would promote improvements in tremor and bradykinesia similar to the on medication state. Design: Before-after pilot trial with cross-over. Setting: University research laboratory. Participants: Individuals with idiopathic PD (N=10, age 45-74y) in Hoehn and Yahr stages 1 to 3. Intervention: Forty minutes of AAC. Main Outcome Measures: Heart rate, pedaling power, and rating of perceived exertion were recorded before, during, and after a bout of AAC. Functional assessments included tremor score during resting, postural, and kinetic tremor. Results: This AAC paradigm was well tolerated by individuals with PD without excessive fatigue, and most participants showed improvements in tremor and bradykinesia immediately after a single bout of cycling. Conclusions: This paradigm could be used to examine changes in motor function in individuals with PD after bouts of high-intensity exercise.