Gait impairments are a hallmark of Parkinson's disease (PD), both as early symptom and an
important cause of disability later in the disease course. Although levodopa has been shown …

The study of dual task interference has gained increasing attention in the literature for the
past 35 years, with six MEDLINE citations in 1979 growing to 351 citations indexed in 2014 …

Vision and cognition have both been related to gait impairment in Parkinson's disease (PD)
through separate strands of research. The cumulative and interactive effect of both (which …

Freezing of gait (FOG) is arguably the most severe symptom associated with Parkinson's
disease (PD), and often occurs while performing dual tasks or approaching narrowed and …

Effects of treadmill walking on Parkinson's disease (PD) patients' spatiotemporal gait
parameters and stride duration variability, in terms of magnitude [coefficient of variation (CV)] …

The purposes of this study were to determine if healthy older adults adopt strategies to
decrease the likelihood of obstacle contact, and to determine how these strategies are …

Visual exproprioception refers to information of the body relative to the environment and may
be the critical piece of sensory information that explains why gait improvements can be …

Patients with Parkinson's disease (PD) are more susceptible to muscle fatigue, which can
damage their gait. Physical activity can improve muscle condition, which is an important …

Objective Navigating obstacles involves adjusting walking patterns, particularly when
stepping over them. This task may be particularly challenging for people with Parkinson …

Background When stepping over obstacles, analyses have focused on the successful trials
to understand adaptive gait. However, examination of the inadvertent trips that occasionally …