Impact of Amazonian dance on speech performance in people with Parkinson's disease.

Prates RA; Espedito Guzzo Júnior CC; Andreazza Duarte MV; Sánchez AM; Pauli P; Martinez FG; Passos-Monteiro E; García AM; Haas AN; Theofanopoulou C · 2026 · iScience

Paper

Abstract

Dance interventions improve limb motor function in Parkinson's disease (PD), yet their impact on speech-related motor control and overall language (e.g., semantics) remains unexplored. To test this, we conducted a 12-week exploratory clinical trial comparing Amazonian dance (two groups: north and south) with a matched-physical intensity control (Nordic walking) and ran automated speech and language analysis pre- and post-intervention. The clearest corrected effect was in the dance north group, who showed improvement in prosody (main tone) compared with Nordic walking. We observed additional consistent signals (uncorrected) for prosody and semantic organization (granularity), particularly when both dance groups were pooled relative to the Nordic walking group. These findings were further supported by subject-level consistency and covariate-adjusted analyses. Our exploratory study suggests that dance may enhance speech-motor and language functions in PD, potentially through auditory-motor coupling, improved timing, and the engagement of overlapping neural substrates between dance and speech and/or language.

Analysis

Paper intelligence

Summary

This exploratory clinical trial investigated the effects of Amazonian dance on speech and language performance in Parkinson's disease patients, finding potential improvements in prosody and semantic organization compared to Nordic walking.

Key findings

The 'dance north' group showed significant improvement in prosody compared to Nordic walking.
Pooled dance groups demonstrated consistent signals for prosody and semantic organization improvement.
Potential mechanisms include auditory-motor coupling, improved timing, and shared neural substrates.

Methods

12-week exploratory clinical trial comparing Amazonian dance (north and south groups) with Nordic walking.
Automated speech and language analysis pre- and post-intervention.
Subject-level consistency and covariate-adjusted analyses were used to support findings.

Limitations

The study was exploratory, suggesting further research is needed.
The number of participants and specific dance groups may limit generalizability.
The precise mechanisms linking dance to speech improvement require further elucidation.

Applications

Development of novel, non-pharmacological interventions for speech and language deficits in Parkinson's disease.
Integration of dance-based therapies into rehabilitation programs for neurodegenerative conditions.

Confidence75%

Discovery

Publication metadata

Authors: Prates RA; Espedito Guzzo Júnior CC; Andreazza Duarte MV; Sánchez AM; Pauli P; Martinez FG; Passos-Monteiro E; García AM; Haas AN; Theofanopoulou C
Published: Jan 1, 2026
Journal or venue: iScience
DOI: 10.1016/j.isci.2026.117185
Paper type: journal article
Source: Pubmed

DOI PubMed