Asymptomatic Carotid Stenosis and Mobility Function With Exercise Intervention
VA Office of Research and Development
Summary
Moderate (50-69%) asymptomatic carotid artery stenosis (ACAS) is an important and under-appreciated contributor to balance and mobility dysfunction. This is significant because declines in balance and mobility are a significant predictor of falls, disability, loss of independence, and death in older adults. Further, falls and fall-related injuries in older adults cost approximately 50 billion dollars annually in the United States, and are the leading cause of adverse events reported by the Veterans Health Administration. This proposal seeks to: 1) investigate the impact of a supervised aerobic and challenging balance exercise program on balance and mobility function in patients with moderate ACAS; and 2) elucidate whether these changes are related to changes in cerebral perfusion. With 830,000 Veterans estimated to have moderate ACAS and at risk for balance and mobility dysfunction and increased falls, the findings from this study could have significant impacts on the clinical management, quality of life, and functional independence of Veterans with moderate ACAS.
Description
The investigators will conduct a prospective randomized controlled trial designed to evaluate the effects of a supervised aerobic and challenging balance exercise (AeroBal) program on balance and mobility function (primary outcome), and fall risk and physical function (secondary outcomes) in patients with moderate ACAS. The investigators hypothesize that aerobic and challenging balance exercises will lead to greater improvement in balance and mobility function, de-creased fall risk, and improved perceived physical function in patients with moderate ACAS compared to standard-of-care vascular ri…
Eligibility
- Age range
- 18–89 years
- Sex
- All
- Healthy volunteers
- Yes
Inclusion Criteria: * Eligible patients will be at least 18 years of age and will have asymptomatic 50-69% carotid stenosis * Asymptomatic status will be confirmed as in NIH trials on asymptomatic carotid stenosis, by medical history, physical examination, and the National Institutes of Health Stroke Scale (NIHSS) * Stenosis severity will be determined by duplex sonography, MR angiography, or CT angiography Exclusion Criteria: * previous stroke or transient ischemic attack * occlusion or severe stenosis of the non-index carotid artery * planned carotid revascularization * persons advised by…
Interventions
- OtherExercise Intervention
The exercise intervention group will undergo 12 weeks of AeroBal exercise training (approximately 3 times/week). Each exercise session will consist of a 5-minute warm-up walk, approximately 30 minutes of aerobic exercise at a goal of 60-75% HRmax, 15 minutes of balance exercises, and a 5-minute cool-down walk.
Location
- Baltimore VA Medical Center VA Maryland Health Care System, Baltimore, MDBaltimore, Maryland