Exercise Clinical Trials

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 Apple Health Study aims to build a diverse and inclusive group of participants to help researchers advance our understanding of how signals and information collected from apps and devices relate to health and may be used to predict, detect, monitor, and manage changes in health. To enroll, US residents who have an iPhone can download the Apple Research app from the App Store and go through the introduction and informed consent for the Apple Health Study. This study is fully remote, and all are invited to enroll if the eligibility criteria are met. Participants will be asked to complete tasks and surveys, using their iPhone and Apple Research app which include: * Selecting the types of data they would like to share with the study such as health and sensor data * Completing tasks and surveys including areas such as personal demographic information, personal medical history, family history, and social determinants of health Read Less

This study aims to elucidate the differences in the gut microbiome functional activity and metabolome in adult premenopausal women with distinctive fitness levels and BMIs (with obesity, w/o obesity). The specific aims are as follows: * Aim 1: To examine the effects of acute aerobic exercise at 60-70% heart rate reserve (HRRmax) for 30 minutes bout on changes in the abundance of SCFA-producing bacteria and their functional downstream metabolic activity. * Aim 2: To examine the effects of acute aerobic exercise at 60-70% HRRmax 30-minute bout on changes in GM-released SCFA concentrations in stool and plasmatic metabolome. 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

Engaging in regular physical activity during midlife is a key lifestyle behavior associated with reduced risk for Alzheimer's disease and related dementias (AD/ADRD). Yet nearly half of midlife adults (48%) do not meet national physical activity guidelines. The purpose of this mechanistic trial is to identify effective goal setting techniques to enhance psychosocial processes of self-regulation for the successful promotion of PA and adherence to national PA guidelines among midlife adults, with the long-term goal of reducing AD/ADRD risk 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

RESIST PAD is a randomized trial of 200 PAD patients to establish: 1) whether a 12-week exercise intervention significantly increases Δ nitrite at 12-week follow-up, compared to control; 2) whether exercise "responders" have greater Δ nitrite increases compared to "non-responders"; 3) among non-responders, whether supplementing exercise with nitrate-rich beetroot juice between weeks 13-24 increases Δ nitrite and improves 6-minute walk at 24-week follow-up. Read Less

Examining two strategies as potential adjuvant therapies for Duchenne muscular dystrophy (DMD); aerobic exercise training (to induce adaptations in skeletal muscle and improve cardiovascular health) and tadalafil, an FDA-approved vasodilator (to optimize blood flow and muscle perfusion which is impaired and often overlooked in DMD). Target: improved muscle function, vascular health, and DMD treatment. Read Less

The purpose of this trial is to investigate the effect of acute ketone monoester ingestion (0.6 g KME/kg body weight) on the occurrence of the ventilatory threshold and the subsequent response of blood velocity in cerebral arteries during a maximal exercise test at low altitude and high altitude. 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 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

The goal of this study is to compare two types of exercises, isometric exercise (like squats and planks) and aerobic exercise (such as running), to see which one is more effective at improving blood pressure in teenagers aged 13 to 17.5 years. The main question the study aims to answer is: - Do the effects of one session of isometric exercise on the blood pressure of adolescents compare to the effects of one session of aerobic exercise? Adolescents with overweight or obesity may qualify for this study. Participants will be randomly assigned to either a single session of isometric exercise or a single session of aerobic exercise. * Participants will attend 3 study visits in total. * Study visits should be completed within 4 weeks of enrollment. * At the initial visit, samples (example: blood) will be collected and body measurements will be taken. * Participants will be asked to answer questionnaires (diet, growth, and others) * At visit 2, participants will have their blood pressure measured using a 24 hour blood pressure monitor. * At visit 3, participants will participate in a single session of either aerobic or isometric exercise. They will wear a 24-hour blood pressure monitor immediately after the exercise session. Read Less