60 hz improved swallowing & gait in small human trial

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60Hz stimulation reduced airway aspiration issues by 57 percent and swallowing difficulty by 80 percent, as well as significantly reduced freezing of gait and axial symptoms, when compared to 130Hz stimulation. Patients continued on 60Hz treatment and benefits persisted when assessed six weeks later. "For those with freezing of gait that cannot be treated with routine 130Hz stimulation, 60Hz stimulation should be used as it not only improves gait, but also swallowing and other Parkinsonian symptoms," Xie said. "It is more effective than 130Hz in overall motor function, though it may not be good for those with medication refractory tremors."

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