Sardinian Folk Dance for Individuals with Parkinson's Disease: A Randomized Controlled Pilot Trial

Objectives: Among different exercise models proposed for individuals with Parkinson's disease (IwPD), the popularity of traditional forms of dance is increasing. The aim of this study was to evaluate the effects of Sardinian folk dance (Ballu Sardu, BS) on functional performance and motor and nonmotor symptoms in IwPD. Design: Single-blind, randomized controlled pilot trial. Settings: Outpatient health clinic. Subjects and interventions: Twenty IwPD (13M, 7F; 67.46.1 years) were randomly assigned to BS (n=10) or usual care (n=10). The dance program consisted of two sessions/week, 90-min/class, for 12 weeks. Outcome measures: Motor and nonmotor symptoms, as well as functional performance, were evaluated using different questionnaires and tests such as the Unified Parkinson's Disease Rating Scale Part-III (UPDRS-III), 6-min walking test (6MWT), Berg Balance Scale (BBS), Timed Up-and-Go (TUG) test, Five Times Sit-to-Stand Test (FTSST), Back Scratch Test (BST), Sit-and-Reach Test (SRT), instrumented gait analysis, Parkinson's Disease Fatigue Scale (PFS-16), Beck Depression Inventory, Starkstein Apathy Scale (SAS), and Montreal Cognitive Assessment (MOCA) scale. Results: Repeated-measures analysis of variance revealed significant TimexGroup interactions for UPDRS-III and functional variables such as the 6MWT, BBS, FTSST, TUG (all, p<0.001), BST (p=0.04), and gait analysis parameters (stride length, p=0.031; gait speed, p=0.049; and gait fatigue index (GFI), p=0.005). For nonmotor symptoms, significant TimexGroup interactions for depression (p<0.001), apathy (p=0.016), and MOCA scores (p=0.012) were observed. Of note, for GFI and SAS, the BS group only showed a trend toward improvement, while the condition of the controls worsened significantly. No between-group differences were observed for SRT and PFS-16. Conclusions: BS is an enjoyable activity, which has been proved to be superior to usual care alone in inducing changes in different motor and nonmotor symptoms associated with PD. Results show that BS can be considered a safe tool for contrasting impairments observed in IwPD due to the intrinsic nature of the neurodegenerative disease.