Singing-based interventions for motor and non-motor symptoms in Parkinson's disease: a systematic review.

Parkinson's disease (PD) is characterized by disabling motor and non-motor symptoms. Although pharmacological and rehabilitation interventions improve many motor and non-motor symptoms, persistent impairments commonly remain in domains, including speech, swallowing, gait, and balance, particularly as the disease progresses. For this reason, over the past few years, alternative rehabilitative approaches, such as singing-based interventions, have been used with the aim of addressing symptoms, such as speech impairment, swallowing difficulties, respiratory dysfunction, and mood. We aim to review