Exercise Clinical Trials

The innovative MPBA+F begins with peer-to-peer mentoring followed by structured parental/family support for long-term reinforcement of PA behaviors. Building and reinforcing skills, MPBA+F mitigates resource stressors and strengthens protective factors by providing culturally appropriate knowledge and skills to improve the sustainability of physical activity at home without the use of exercise equipment. By strengthening social support through peer and friendship networks and family-based support, MPBA+F responds to the unique needs of rural Appalachians in a culturally responsive way. This study targets physical activity among children with overweight, obesity, or extreme obesity because rural Appalachian communities identify sedentary activity as a key contributor to the high rates of obesity and diabetes risk among youth. Read Less

The investigators previously developed a virtual 14-day dual-task walking exercise program and tested its feasibility with individuals with mild traumatic brain injury (mTBI) history. The investigators will test the feasibility and efficacy of a mobile app-version (Uplode) of the same 14-day exercise program (Brain & Walk Exercise Every Day [BraW-Day]), on cognition, sensorimotor, and other functions in a group of voluntary young adults with an mTBI between last three months to two years, including student athletes, Veterans, and ethnic minorities. Read Less

The primary goal of this project is to determine the effects of exercise on the gut microbiome in breast cancer survivors and determine how these changes may relate to psychosocial symptoms such as fatigue. Read Less

The purpose of this study is to determine if an acute bout of removal of exercise reduces enothelial function and glycemic control in an active, older adult population; and whether a 3 day return to exercise restores this response. Glycemic control is the blood glucose response following the consumption of a meal. It is an indicator of insulin resistance (or type 2 diabetes) and impaired glycemic control has been suggested to lead to cardiovascular disease. Endothelial function has been shown to be improved by chronic or acute increases in physical activity. Both of these have been shown to be impaired to acute bouts of inactivity in young populations; however the impact of acute inactivity in older adults is less understood. In this proposal the investigators will examine 1)how quickly impairments in glycemic control occur to acute physical inactivity in older adults who exercise, 2) how quickly impairments in endothelial function occur to acute inactivity in older adults who exercise, and 3) whether 3 days of a return to exercise restores these responses. Read Less

Natriuretic Peptides (NP) are hormones produced by the heart, and they have a wide range of favorable metabolic benefits. Lower levels of these hormones are associated with an increased likelihood of the development of diabetes and poor cardiometabolic health. Obese and Black individuals have ~30% lower levels of NP and are at a greater risk of developing cardiovascular (CV) events as compared to lean and White counterparts. Some people have common genetic variations that cause them to have ~20% lower NP levels. Similar to other low NP populations, these individuals with low NP genotype (i.e., carrying a common genetic variation called rs5068) are at a greater risk of developing cardiometabolic diseases. By understanding the NP response following the exercise challenge and the glucose challenge in individuals with genetically lower NP levels will help us understand how to improve cardiometabolic health in them. Read Less

The purpose of this study is to test a culturally tailored, smartphone-delivered intervention designed to increase physical activity and reduce risk for heart disease and type 2 diabetes among African American women. Read Less

The gut microbiome refers to the trillions of bacteria that inhabit the stomach and other regions involved in the digestion of food, including the intestines. Compelling studies of animals (rodents) suggest that the health of the gut microbiome may influence skeletal muscle function and exercise performance. To date, there have been no similar observations reported in humans. A common experimental approach in animal studies to temporarily disrupt the gut microbiome is through the use of antibiotic therapies. Azithromycin is an antibiotic medicine prescribed to humans for the treatment of mild to moderate infections caused by bacteria. The purpose of the proposed project is to determine the influence of short-term (5-days) antibiotic therapy (azithromycin) on exercise performance in young, healthy adults. Treadmill exercise performance will be compared in two groups of adults before and after 5-days ingestion of azithromycin, or a placebo (something that has no physical effect). Read Less

Physical activity has been described by the US federal government as a 'best buy' for public health. Unfortunately, most adults in the United States are not sufficiently active, and this worsens with age. Low levels of participation are driven by many challenging barriers, including lack of access, few opportunities for enjoyable activity, and few supportive social relationships, which is especially important given the central role of social connection for lasting behavior change. A half-century of research in behavioral sciences has generated effective group-based physical activity programs, but these are inaccessible to most as they are often delivered in a few select research centers. Recent advances in telehealth have offered media for extending these interventions more broadly, but the experience of such programs is often hampered by technology that does not allow for a sense of physical and social presence. Fortunately, uptake of virtual reality (VR) is increasing rapidly, and the medium has a high level of potential for advancing the delivery of immersive evidence-based group interventions to those that most need it. Thus our specific aims are: Specific aim 1: To test the feasibility and acceptability of a group-mediated physical activity intervention delivered fully via modern VR to older adults. Specific aim 2: To examine the impact of this program on overall physical activity among older adults compared to the current standard-of-care for telehealth: the video conference meeting platform. Read Less

Exercise is essential for building and maintaining bone mass and strength, but current exercise recommendations for how to achieve this lack detail on the optimal exercise prescription. Recent studies found that blood calcium level decreases during exercise, and that calcium is mobilized from bone to slow the decline. If this occurs repeatedly during exercise training, it could diminish the potential benefits of exercise to improve bone health. The proposed study will determine whether further research on pre-exercise supplemental calcium to minimize the decline in blood calcium level during exercise is warranted. This research is important for Veterans because they are at increased risk of hip fracture when compared with non-Veterans. Further, because osteoporosis in men is under-recognized and under-treated, providing male (and female) Veterans with more specific exercise and nutrition guidelines has the potential to enhance bone health, reduce fracture risk, and improve quality of life. Read Less

The study will use a randomized controlled trial design to evaluate the potential of incorporating physical therapy exercises (primary prevention strategy) within an evidence-based intervention called Walk with Ease to reduce falls and fall risk in older, community-dwelling older adults. The integrated process and outcome evaluation will determine the relative effectiveness of individually prescribed exercises (compared to standardized exercises) as well as the potential of 'habit training' resources to improve compliance with exercises in this population. The study, conducted through a local clinical / community partnership will advance both science and practice while also informing implementation strategies needed to promote broader dissemination. Read Less

This study will be a pilot study to evaluate the feasibility, safety and acceptability of Exercise and Liver FITness (EL-FIT), a mHealth exercise training program previously validated in patients with cirrhosis in patients with nonalcoholic steatohepatitis. Read Less

The goal of this clinical trial is to test the effects of 10 weeks of exercise on overall brain health, reduction in blood pressure, and the number of blood vessels in the back of the eyes in patients with hypertension and have a body mass index ≥ 25 kg/m2. The main question[s] it aims to answer are: To test the effect of moderate vs intensive exercise on Brain Care Score outcomes. To ascertain the differential impact of moderate vs high intensity exercise in reducing hypertension and its downstream effects. Read Less