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This systematic review with meta-analysis aimed to determine the effects of exercise and motor training on the performance of balance-related activities and falls in people with Parkinson's disease. Sixteen randomized and quasi-randomized controlled trials that assessed the efficacy of exercise and/or motor training against no intervention or placebo(More)
OBJECTIVE To determine whether falls can be prevented with minimally supervised exercise targeting potentially remediable fall risk factors, i.e., poor balance, reduced leg muscle strength, and freezing of gait, in people with Parkinson disease. METHODS Two hundred thirty-one people with Parkinson disease were randomized into exercise or usual-care(More)
There is research evidence that exercise and motor training are beneficial for people with Parkinson's disease (PD), and clinicians seek to implement optimal programs. This paper summarizes important factors about the nature and reporting of randomized controlled trials of exercise and/or motor training for people with PD which are likely to influence the(More)
Falls in people with Parkinson's disease (PD) are frequent and recurrent events with devastating and widespread consequences. Despite this, understanding of the predictive and explanatory value of fall risk factors, as well as the development and testing of interventions aimed at reducing falls, are in their infancy. This review focuses on fall prediction(More)
BACKGROUND In order to develop multifaceted fall prevention strategies for people with Parkinson's disease (PD), greater understanding of the impact of physical and cognitive performance on falls is required. OBJECTIVE We aimed to identify the relative contribution of a comprehensive range of physical and cognitive risk factors to prospectively-measured(More)
BACKGROUND Balance and mobility problems are common for people with Parkinson disease (PD). OBJECTIVE To determine the relationships of motor and cognitive impairments with specific balance and mobility task performance. METHODS A total of 82 community-dwelling people with idiopathic PD were tested "on" medication. Impairments measured included leg(More)
Muscle power, muscle strength and postural sway are considered to be determinants of fall risk and gait in Parkinson's disease (PD) and potential targets for therapeutic trials. However, the potential usefulness of these tests as outcome measures depends on their reproducibility in the PD population. Therefore, measures of leg muscle power, leg muscle(More)
Copyright © 2015 Alessandro Picelli et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Parkinson's disease (PD) is a chronic and progressive neu-rodegenerative condition characterized by a(More)
BACKGROUND Commercially available activity monitors, such as the Fitbit, may encourage physical activity. However, the accuracy of the Fitbit in older adults remains unknown. This study aimed to determine (1) the criterion validity of Fitbit step counts compared to visual count and ActiGraph accelerometer step counts and (2) the accuracy of ActiGraph step(More)
BACKGROUND Reduced muscle power (speed × strength) is associated with increased fall risk and reduced walking speed in people with Parkinson's disease (PD) as well as in the general older population. This study aimed to determine the relative contribution of motor impairments (bradykinesia, tremor, rigidity and weakness) to reduced leg muscle power in(More)
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