Adaptations to Postural Perturbations in Patients With Freezing of Gait.

Freezing of gait (FOG) is a powerful determinant of falls in Parkinson's disease (PD). Automatic postural reactions serve as a protective strategy to prevent falling after perturbations. However, differences in automatic postural reactions between patients with and without FOG in response to perturbation are at present unclear.

The Impact of Dual-Tasking on Postural Stability in People With Parkinson's Disease With and Without Freezing of Gait.

Background: Postural instability and freezing of gait (FOG) are major problems in patients with Parkinson's disease (PD), and both contribute to falls. However, the interrelationship between these 2 deficits is still unclear.

Objective: This study investigated whether dual-tasking influenced postural control differently in freezers (FOG+) and nonfreezers (FOG-).

Effects of Exercise Therapy on Postural Instability in Parkinson Disease: A Meta-analysis.

Background And Purpose: Exercise therapy is a common intervention for improving postural stability. The purpose of this meta-analysis was to assess the effect of exercise therapy on postural instability in persons with Parkinson disease (PD) based on the available literature, and to evaluate the efficacy across various types of exercise interventions.

Data Sources And Study Selection: In January 2015, electronic databases (PubMed, Scopus, PEDro) and study reference lists were searched for randomized controlled trials with moderate or high methodological quality (PEDro score ≥ 5), investigating the effect of exercise on postural instability in persons with PD.