Leg Cycling Leads to Improvement of Spasticity by Enhancement of Presynaptic Inhibition in Patients with Cerebral Palsy

Objective: The purpose of this study was to investigate if leg cycling could reduce lower extremity spasticity in patients with cerebral palsy (CP). In addition, we investigated whether the intervention cause changes modulation presynaptic inhibition. Methods: This a quasi-experimental study, pretest–posttest for 1 group. Participants experiment were eight adult CP spasticity. Spasticity parameters assessed amplitude soleus maximum Hoffmann’s reflex (Hmax) and angular velocity (MAV) knee flexion measured using pendulum test. D1 inhibition, which seems be related recorded by measuring (H-reflex) conditioned electric stimuli common peroneal nerve. Results: inhibition significantly enhanced immediately intervention. Hmax depressed, there significant difference Hmax/maximum M-wave. MAV increased due stretch reflex. Conclusion: Leg suppressed H-reflex, caused plasticity inhibitory circuits These findings strongly suggest that can improved movements.