View clinical trials related to Aging.
Filter by:The goal of this study is to examine the impact of mind-body interventions in enhancing behavioral and neural correlates of attentional control in older adults. Participants will be randomized to either a 8-week mindfulness meditation group or a 8-week lifestyle education group. Additional booster sessions, spanning the course of a year, will be offered to participants in both groups. Participants will complete pre- and post-assessments of neurocognitive and emotional functioning, and will be assessed for maintained benefits 12-months post-intervention.
Brief Summary: Current U.S. Veteran demographics reveal an aging population with significant cardiovascular dysfunction. This ultimately manifests as mobility limitation, inactivity, and a subsequent worsening of cardiovascular disease (CVD) that often leads to death. However, despite this clear negative cycle of events, there is not a single clinically accepted, and therefore routinely utilized, method of assessing vascular health. As nitric oxide (NO) is anti-atherogenic and cardioprotective, identifying an in vivo bioassay of NO bioavailability has significant worth in this arena. Fueled predominantly by the VA Merit Award prior to this renewal application, single passive leg movement (sPLM) and the subsequent blood flow increase, measured non-invasively by ultrasound Doppler in the common femoral artery, is emerging as a method by which vascular endothelial function and therefore NO bioavailability can be determined. However, although this work has yielded an initial characterization of sPLM and established this method to be a novel, valid, and a clinically relevant approach to determine vascular health, further understanding of the sPLM response with advancing age and, ultimately, its implementation and assessment in both rehabilitation and clinical arenas is still necessary. With the growing interest in personalized medicine, the development of tools, such as sPLM, that allow individualized assessments to guide the physician, the patient, and the rehabilitative team, are essential. Therefore, two specific aims are proposed that will address the Central Hypothesis that the sPLM paradigm provides a clinically meaningful assessment of endothelial function. First, cardiac rehabilitation will be assessed by sPLM in the elderly, and, coupled with studies in the young, will elucidate the predominant pathways responsible for the change in endothelial function with aging and rehabilitation. Second, the CVD diagnostic value of the sPLM assessment of endothelial function will be evaluated relative to classic measures and markers of subclinical disease in order accelerate the inclusion of endothelial dysfunction as a CVD risk factor. The proposed studies aim to catalyze the transition of the assessment of endothelial function by sPLM from research to clinical practice.
This study evaluate whether resistance training variables modulate the fatigability (power-duration relationship) and physical performance in adults and older adults
This study investigates the effect of dietary inorganic nitrate supplementation on 1) large elastic artery stiffness and hemodynamics and 2) cerebrovascular function in middle-aged and older adults. Participants will be randomized to consume either nitrate-containing or nitrate-depleted beetroot juice.
A study designed to compare evening versus morning levothyroxine intake in the elderly.
Hearing loss has been associated with decreased emotional wellbeing and reduced quality of life in aging adults. Although hearing aids can target aspects of peripheral hearing loss, persistent perceptual deficits are widely reported. One prevalent example is the loss of the ability to perceive speech in a noisy environment, which severely impacts quality of life and goes relatively unremediated by hearing aids. Musicianship has been shown to improve aspects of auditory processing, but has not been studied as a short-term intervention for improving these abilities in older adults with hearing aids. The current study investigates whether short-term choir participation can improve three aspects of auditory processing: perception of speech in noise, pitch discrimination, and the neural response to brief auditory stimuli (frequency following response; FFR). Sixty hearing aided older adults (aged 50+) recruited from the Greater Toronto Area will be randomly assigned to one of three conditions: a choir singing class (n=20), a music appreciation class (n=20), and a do-nothing control group (n=20). Choir participants will take part in a singing class for 14 weeks, during which they will take part in group singing (2 hours/week) supported by individual online musical training (1 hour/week). Participants will undergo pre- and post-training assessments, conducted during the first week of the choir class and again after the last week. Participants in the music appreciation class will be involved in 14 weeks of music listening classes, and the do-nothing control group will not engaged in an active intervention. All participants will undergo the same battery of assessments, measured before and after the 14-week time frame. Auditory assessments (speech perception in noise and pitch discrimination tests) will be administered electronically, and the FFR will be obtained using electroencephalography (EEG). Each of the four assessment sessions (two pre-training, two post-training) will last approximately 1.5 hours, for a total of 6 hours of data collection. The goal of this research is to investigate whether short-term musical training will result in improved auditory outcomes for older adults with hearing aids. It is predicted that the choir singing group will demonstrate the greatest improvements across all auditory measures, and that both the choir singing and musical appreciation groups will experience greater improvements than the do-nothing control group.
The current study is designed to test the effectiveness of online programs for memory and executive functions in healthy aging. The investigators are testing online adaptations of two cognitive interventions that have been extensively studied, validated, and implemented in clinical settings: The Memory & Aging Program (MAP) targets normal memory change in healthy aging, and Goal Management Training (GMT) targets executive functioning deficits in a variety of cognitive and neurological conditions including healthy aging. Both programs combine psycho-education, targeted skills training and clinical support to empower participants with knowledge and strategies to harness their cognitive faculties. These programs are being tested against a waitlist control as well as against a commercial/research brain training platform (Cambridge Brain Sciences) in a design comparing performance on memory and executive functioning measures before and after the interventions/controls. The main hypothesis is that MAP will lead to memory-specific improvements above control conditions, whereas GMT will lead to greater improvements in measures of executive functions relative to controls.
Nitrate is a naturally-occurring substance found in foods, especially green leafy vegetables and beets. Increasing nitrate intake (by drinking beetroot juice (BRJ) has been shown to improve muscle function young and middle-aged subjects, athletes, and patients with heart failure. The purpose of this study is to determine whether dietary nitrate provides a similar benefit in older individuals, and if so, the optimal dose. We will be comparing the effects of ingesting BRJ containing a smaller or greater amount of nitrate versus the effects of a placebo (BRJ from which the nitrate has been removed).
Randomized Controlled Trial (RCT) aiming at assessing the efficacy of an interdisciplinary multi-component and personalized multi-factorial intervention for reducing falls at one year post-enrolment in comparison to the usual care in a sample of community dwelling elderly (age ≥65 years), with or without Parkinson's Disease and/or previous Stroke.
The purpose of this study is to investigate the practicality of a short-term (8-weeks), home-based digital versatile disc (DVD) chair exercise program among 40 sedentary older Black/African American and White/Caucasian veterans with three or more chronic health conditions, such as type 2 diabetes, hypertension, and osteoarthritis.