Research overview
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BackgroundOculomotor function has been established as a critical factor influencing balance, and both domains are frequently impaired in Parkinson's disease (PD). Despite increasing recognition of younger PD cases, targeted therapeutic research remains limited.PurposeThis pilot study evaluated the effects of a treadmill-based oculomotor dual-task intervention in individuals with PD, comparing its impact on balance and non-motor outcomes with that of Nordic walking (NW).MethodUsing a sequential within-subjects design, this study contrasts a four-week NW intervention with a subsequent four-week oculomotor intervention. Baseline, interim, and post-intervention assessments were conducted, with data collected using both qualitative and quantitative measures.ResultsThe treadmill and oculomotor intervention led to greater improvements in unilateral and static balance parameters compared to NW, particularly under horizontal eye-movement conditions. While motor scores improved comparably in both interventions, non-motor domains such as emotional well-being and stigma improved only after the oculomotor protocol.ConclusionTreadmill-based oculomotor dual-task training appears to be a viable and time-efficient alternative to NW for improving specific aspects of balance and non-motor function in PD. Given its indoor feasibility and short duration, this approach may enhance accessibility in clinical and home-based rehabilitation settings.
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