Parkinson’s Balance Study Finds Cortical-Latency Muscle Control at 215 ms
A 36-person Parkinson’s disease balance study found that perturbation-evoked muscle activity could be split into brainstem-latency LLR1 responses around 116-119 ms, cortical-latency LLR2 responses around 200-215 ms, and an antagonist destabilizing component around 173-181 ms.1 Parkinson’s disease lowered clinical balance scores, but the broad claim that Parkinson’s patients had higher cortical-latency LLR2 responses than older …