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31 Exercise Intolerance Trials Near You
Power is an online platform that helps thousands of Exercise Intolerance patients discover FDA-reviewed trials every day. Every trial we feature meets safety and ethical standards, giving patients an easy way to discover promising new treatments in the research stage.
Learn More About PowerMastering Diabetes Program for Type 2 Diabetes
Athens, Ohio
This is a program evaluation that will evaluate the effectiveness of Mastering Diabetes, a therapeutic lifestyle change (TLC) program to control prediabetes and type 2 diabetes.
Lifestyle change, focused on dietary change, physical activity, stress management and control of unhealthy substances has been demonstrated effective in preventing the progression of prediabetes, as well as reversal of diabetes and type 2 diabetes mellitus (T2DM).
No Placebo Group
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Age:18 - 65
Key Eligibility Criteria
Disqualifiers:Dementia, Pregnancy, Renal Disease, Others
Must Not Be Taking:Coumadin, Warfarin
100 Participants Needed
KL1333 for Mitochondrial Disease
Akron, Ohio
This trial is testing KL1333, a new medicine, to see if it can help people with mitochondrial disease feel less tired and improve their physical abilities. The study targets people with primary mitochondrial disease because they often suffer from severe fatigue. KL1333 works by boosting energy production in cells.
Trial Details
Trial Status:Recruiting
Trial Phase:Phase 2
Key Eligibility Criteria
Disqualifiers:Neurodegenerative Phenotypes, Cardiovascular Disease, Gastrointestinal Issues, Others
Must Not Be Taking:Idebenone
180 Participants Needed
Swallowing Exercises for Obstructive Sleep Apnea
Cleveland, Ohio
This study has two parts: an observational part and an interventional part.
The goal of the observational part of the study is to look for variations in swallowing in adults with obstructive sleep apnea (OSA) and in adults who don't snore. The main questions it aims to answer are:
* Are there differences in swallowing between people with OSA and people who don't snore?
* Are there differences in swallowing between people with OSA who do well with continuous positive airway pressure (CPAP) therapy and those who struggle with CPAP?
This may help us better understand what causes OSA, which may help us develop alternate ways to treat or even prevent OSA. It may also help us improve care for people with OSA who struggle with CPAP. Participants will be aged 40-60 years, except women up to the age of 70 will be included in the healthy control (non-snorer) group.
Participants will:
* Undergo a type of x-ray study called a modified barium swallow study (MBS)
* Come to MetroHealth Medical Center for a measurement visit to:
* assess the strength of their tongue, lips, and cheeks
* assess the strength of their breathing muscles
* assess for restrictions in tongue mobility (tongue ties)
* observe their resting breathing
* take photos of their mouth and posture
* take videos of them drinking and eating
* Complete some questionnaires
* For successful CPAP users: we will download data from the chip in their CPAP device
* Do a home sleep test (except for successful CPAP users who have had a recent in-lab sleep test)
The goal of the interventional part of the study is to test swallowing exercises in people ages 40-60 years with OSA who struggle with CPAP. The main question it aims to answer is:
• Can swallowing exercises help people who struggle with CPAP sleep better with CPAP?
Participants will:
* Try to use CPAP for 2 weeks with individualized support
* Do all the investigations listed in the observational part of the study
* Do one or two courses of swallowing exercises, each of which would last 7 weeks. Participants will be asked to do daily exercises; exercises will take 20-30 minutes to perform.
* Try to use CPAP for 2 weeks after the course of exercises
* Repeat the investigations listed in the observational part of the study to see if changes occurred with the swallowing exercise intervention.
No Placebo Group
Trial Details
Trial Status:Enrolling By Invitation
Trial Phase:Unphased
Age:40 - 70
Key Eligibility Criteria
Disqualifiers:Swallowing Disorders, Neuromuscular Disorders, Complex Sleep Apnea, Unstable Illness, Others
Must Not Be Taking:Stimulants, Opioids
50 Participants Needed
Exercise for High Blood Sugar During Pregnancy
Knoxville, Tennessee
This randomized controlled crossover trial of 36 pregnant individuals with gestational diabetes (GDM) or gestational glucose intolerance (GGI) will:
1. Determine the effects of physical activity (PA) timing, specifically 30 minutes of moderate intensity walking or stepping in the morning (between 5am-9am, within 30-40 minutes of starting breakfast), versus late afternoon/evening (between 4pm-8pm, within 30-40 minutes of dinner) on glucose across the 24-hour cycle.
2. Explore the potential effects of the timing of PA on sleep and mood state.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 40
Sex:Female
Key Eligibility Criteria
Disqualifiers:Type I/II Diabetes, PCOS Meds, Others
Must Not Be Taking:Metformin, Corticosteroids, Antipsychotics, Others
36 Participants Needed
IV Saline for POTS
Nashville, Tennessee
The investigators will test whether an intravenous infusion of saline (salt water) will improve the exercise capacity in patients with postural tachycardia syndrome (POTS).
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Age:18 - 65
Key Eligibility Criteria
Disqualifiers:Acute Dehydration, Pregnancy, Others
40 Participants Needed
Antioxidant Supplements for Cystic Fibrosis
Richmond, Virginia
This trial is testing if antioxidant supplements can help people with cystic fibrosis (CF) exercise better. People with CF often struggle with exercise, which can lead to more hospital visits. Antioxidants might help by protecting their cells from damage, making it easier for them to stay active. Glutathione, an antioxidant, has shown potential in improving lung function and reducing oxidative stress in cystic fibrosis patients.
Trial Details
Trial Status:Recruiting
Trial Phase:Early Phase 1
Key Eligibility Criteria
Disqualifiers:Not Listed
36 Participants Needed
MitoQ for COPD
Richmond, Virginia
Cardiovascular health is a critical problem in patients with chronic obstructive pulmonary disease (COPD). Existing literature suggests oxidative stress from the mitochondria c driving some of the poor health outcomes in COPD. MitoQ is a mitochondrial-targeted antioxidant that has shown promise in improving cardiovascular outcomes in similar populations. Thus the purpose of this study is to test if MitoQ can improve cardiovascular health in COPD.
Trial Details
Trial Status:Recruiting
Age:40+
Key Eligibility Criteria
Disqualifiers:Not Listed
24 Participants Needed
Lifestyle Modification for Diabetic Neuropathy
Baltimore, Maryland
Type 2 diabetes (DM2) affects nearly 20 million people in the United States while impaired glucose regulation (IGR), which includes impaired glucose tolerance (IGT), impaired fasting glucose (IFG), and early diabetes affects a considerably larger but unknown population group. At the current time there is no effective therapy to completely prevent, or reverse neuropathy associated with IGR and this represents a considerable challenge in rehabilitation. There is a particularly strong incentive to prevent IGT and related complications from advancing to DM2. IGR is a growing problem among all older adults and its strong association with many functional limitations, particularly mobility limitations, is not always recognized, even though diabetes-related disability occurs in up to 2/3 of older adults with diabetes and is associated with dependency, poor quality of life, and increased acute and long-term care utilization.
Autonomic dysfunction is a significant problem in subjects with IGT. The Preliminary Data shows that over 90% of subjects with IGT have an abnormal score on questionnaires about autonomic symptoms such as lightheadedness, dry mouth or dry eyes, pale or blue feet, feet that are colder than the rest of the body, decreased sweating in the feet or increased sweating in the hands, nausea or bloating after eating, persistent diarrhea or constipation, or leaking of urine. In addition, patients with IGR have impaired balance control. These factors can increase the risk of falls in affected subjects. A non-randomized and non-controlled study showed that a diet and exercise intervention in patients with diabetes led to an overall improvement in autonomic function. Furthermore, it was shown that standing balance can be improved with a balance intervention program.
However, there are no published studies that assess the effect of an intense physical activity intervention on autonomic function in IGR related neuropathy. This study will test an aerobic exercise and balance intervention in participants with IGR. The investigators will examine if an individually tailored, carefully monitored, Diet, Physical Activity, and Balance Enhancement Program (DPAEP) can improve autonomic function and balance control when compared to patients who receive standard care. Improving balance control and autonomic function can decrease the risk of falls and have a significant effect on the health of participants.
The research is also significant because it will test subjects either before they become diabetic, or at an early stage in their diabetes, thus enhancing the chance of reversing the autonomic neuropathy or balance impairment. Furthermore, the study is designed to test whether improvement in autonomic function and balance is associated with improvement in clinical outcomes, quality of life, and the metabolic state of participants. Thus, the proposed interventions are likely to have a real life impact on participants and their health.
No Placebo Group
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Age:30 - 80
Key Eligibility Criteria
Disqualifiers:Pregnancy, Prisoners, Severe Conditions, Others
60 Participants Needed
Vivo for Prediabetes
Durham, North Carolina
This is a 12-week randomized, controlled trial that seeks to examine the effect of Vivo on 1) change in lower extremity strength defined as number of chair stands done in 30 seconds and 2) change in average glycemic level (HbA1c) compared to a wait list control.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:60+
Key Eligibility Criteria
Disqualifiers:Unstable Angina, Arrhythmia, Uncontrolled Hypertension, Others
Must Not Be Taking:Antidiabetics, Testosterone
90 Participants Needed
Removal of Exercise for Impaired Glucose Tolerance
Norfolk, Virginia
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.
No Placebo Group
Trial Details
Trial Status:Recruiting
Key Eligibility Criteria
Disqualifiers:HIV, Hepatitis, Tuberculosis, Smoking, Others
Must Not Be Taking:Blood Glucose Medications
40 Participants Needed
Behavioral Exposure Therapy for Exercise Intolerance
New Brunswick, New Jersey
Behavioral Exposure for Interoceptive Tolerance (BE-FIT) is a mechanism-informed behavioral intervention to target exercise anxiety. The three primary components of BE-FIT include: (1) exposure to feared bodily sensations and exercise; (2) prevention of safety behavior use before/during/after exercise, and (3) use of a wrist-worn activity monitor for physical activity (PA) feedback and activity goal setting. Evidence from the investigators' Stage I trial indicated that BE-FIT is feasible, acceptable, and safe and produced reductions in exercise anxiety and increased exercise outcomes (short-term moderate-to-vigorous intensity physical activity and steps/day). The investigators' present aim is to conduct a Stage II randomized-controlled trial to further evaluate the efficacy of BE-FIT in decreasing exercise anxiety in cardiac rehabilitation (CR) patients and examine whether changes in this target yield successive changes in exercise adherence outcomes.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Phase 2
Age:40+
Key Eligibility Criteria
Disqualifiers:Cognitive Impairment, Severe Chronic Conditions, Others
146 Participants Needed
Dietary Strategies for Prediabetes
Birmingham, Alabama
This is a sub-study to NCT04745572 to include a new cohort of participants with disabilities. This 16-week study will use an experimental approach called the Sequential Multiple Assignment Randomized Trial to help determine which combination and sequence of weight loss program features are most effective in people who are at risk for type 2 diabetes. Participants in the study will be initially randomized to consume either a high or reduced carbohydrate diet. After 4 weeks, participants will be identified as Responders (greater than or equal to 2.5% weight loss) or Non-Responders (less than 2.5% weight loss). Responders will continue with their initial randomized group for the remainder of the trial. Non-responders will be re-randomized to 2nd stage interventions of either including additional exercise counseling and training or beginning a time restricted eating protocol for the remainder of the trial.
No Placebo Group
Trial Details
Trial Status:Not Yet Recruiting
Trial Phase:Unphased
Key Eligibility Criteria
Disqualifiers:Pregnancy, Diabetes, Eating Disorders, Others
Must Not Be Taking:Weight Loss Medications
30 Participants Needed
Cooling Fan Exercise for COPD
Montreal, Quebec
The purpose of this study is to explore the role of a stream of cool air to the face, through fan-to-face therapy, as a novel adjunct non-pharmacological therapy to enable symptomatic adults with cardiopulmonary disease to exercise at higher intensities for longer durations and maximize the psycho-physiological benefits of a supervised exercise training program. The investigators hypothesize that, compared to no fan, fan-to-face therapy will result in relatively greater improvements in exercise endurance time and intensity ratings of perceived breathlessness during constant-load cardiopulmonary exercise testing on a treadmill at 75% of peak power output following a 5-week exercise training period.
No Placebo Group
Trial Details
Trial Status:Recruiting
Age:40+
Key Eligibility Criteria
Disqualifiers:Recent Medication Change, Recent Hospitalization, Exercise Contraindications, Others
32 Participants Needed
Breathing Support for Heart Failure
Dallas, Texas
The overall purpose of this study is to investigate whether pulmonary limitations that increase the oxygen (O2) cost of breathing impact dyspnea on exertion (DOE) and peak exercise capacity in patients with HFpEF and obesity. As per investigator's hypothesis, obesity is likely a significant contributor to DOE and exercise intolerance in patients with HFpEF.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:55 - 90
Key Eligibility Criteria
Disqualifiers:Atrial Fibrillation, Severe COPD, CKD, Others
Must Not Be Taking:PDE5 Inhibitors
78 Participants Needed
Morning vs Evening Exercise for Prediabetes
Aurora, Colorado
Purpose of the Study: This study is to learn more about how exercising at different times of the day (morning versus evening) affects metabolism of glucose in the body, sleep, activity outside of exercise, and other factors.
Procedures:
* 2 screening visits to make sure you are eligible to be in the study. This will include a fasting blood draw and heart tracing (EKG).
* If you are eligible, you will complete both exercise conditions in a random order. All participants in the study will complete the following separated by 3-4 weeks:
* Baseline condition of NO exercise
* Morning exercise for 3 days in a row
* Evening exercise for 3 days in a row
* You will be provided with an example diet to follow for the days you are completing the baseline and exercise conditions (three days total for each condition). This diet will be a "traditional" diet with a controlled amount of carbohydrates, protein, and fat per day. The investigators will provide you with examples of meals to eat during this time.
* You will be asked questions and complete questionnaires about your health history, sleeping and awakening habits, and sleepiness levels.
* You will undergo one x-ray scan to measure your level of body fat.
* You will be asked to wear an activity monitor and sleep monitor for 6 days in a row three times during this study.
* You will be asked to wear a continuous glucose monitor (CGM) for 6 days in a row three times during this study.
* You will be asked to measure your saliva melatonin levels three times in the study. This will be done once per hour for 5 hours (a total of 6 saliva samples).
* You will be asked to complete a procedure called a "hyperinsulinemic-euglycemic clamp" where you will have an IV placed and insulin and glucose infused with frequent lab and finger stick blood sugars monitored closely. This will be done 3 times during the study.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:20 - 40
Key Eligibility Criteria
Disqualifiers:Cardiovascular Disease, Diabetes, CKD, Others
Must Not Be Taking:Oral Steroids, Metformin, GLP1 Agonists
25 Participants Needed
Resistance Exercise Effort for Type 2 Diabetes
Albuquerque, New Mexico
The goal of this clinical trial is to compare the degree of effort during a resistance exercise session on blood glucose levels in individuals with prediabetes or type 2 diabetes mellitus. The main questions it aims to answer are:
* Do individuals with prediabetes or type 2 diabetes mellitus need to perform resistance exercise with a high degree of effort for their blood glucose to improve?
* How do they feel (their enjoyment, discomfort) after the sessions with different degrees of effort?
Participants will perform 3 situations separated by at least 4 days, after being familiarized with all exercises and procedures:
* One control day, when they will not exercise;
* A high-effort resistance exercise session;
* A low-effort resistance exercise session Researchers will measure blood glucose levels and psychological responses after these situations to see if the effort was important for the improvement of their blood glucose and how effort affected the way they felt after each situation.
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Unphased
Key Eligibility Criteria
Disqualifiers:Renal Failure, Liver Disease, Hypertension, Others
Must Not Be Taking:Oral Contraceptives
15 Participants Needed
Exercise tolerance decreases with age and a sedentary lifestyle. Muscle critical power (CP), is a sensitive measure of exercise tolerance that is more even more relevant to and predictive of endurance performance than VO2max.
While recent evidence indicates that CP and muscle function decrease with aging, the cause of this decrease in CP and the best way to mitigate the decrease in CP are unknown.
This study will:
1. Measure knee extensor CP in young and old individuals and determine the extent to which changes in muscle oxygen delivery (e.g. resistance artery function, maximum exercise blood flow), muscle mass and composition (e.g. whole-muscle size, muscle fiber cross-sectional area) and mitochondrial oxygen consumption (e.g. maximal coupled respiration of permeabilized fibers biopsied from the knee extensors) contribute to the decrease in CP with age.
2. Examine the effectiveness of two different therapies (1. High Intensity Interval Training, HIIT and 2. Muscle Heat Therapy) at improving muscle function and critical power in young and older adults.
3. Examine the impact of muscle disuse (2 weeks of leg immobilization), a potential contributor to the decrease in muscle function with aging, on muscle function and critical power and determine if heat therapy is an effective means of minimizing the impact of disuse on muscle function and critical power.
Trial Details
Trial Status:Recruiting
Key Eligibility Criteria
Disqualifiers:Not Listed
148 Participants Needed
Exercise + BH4 for Heart Failure
Salt Lake City, Utah
Heart disease is the leading cause of death in the United States, accounting for one in every four deaths in 2010 and costing over $300 billion annually in health care, medication, and lost productivity. Heart failure with a reduced ejection fraction (HFrEF), a clinical syndrome that develops as a consequence of heart disease, now affects almost 6 million Americans. Within the VA Health Care System, HFrEF hospital admission rates continue to rise, and remain the number one reason for discharge from VA hospitals nationwide. Unfortunately, over one-third of all Veterans suffering from HFrEF die within two years of discharge despite optimized drug therapy, an unacceptably high number. This proposal is focused on how impaired muscle blood flow contributes to exercise intolerance in HFrEF, and on subsequently developing strategies for restoring exercise tolerance and slowing disease progression in this patient group. It is anticipated that knowledge gained from these studies will contribute to improved standard of care, quality of life, and prognosis in this VA patient group.
Trial Details
Trial Status:Recruiting
Trial Phase:Early Phase 1
Key Eligibility Criteria
Disqualifiers:Atrial Fibrillation, Dementia, COPD, Diabetes, Others
Must Be Taking:Ace Inhibitors, Beta Blockers
140 Participants Needed
Timing of Resistance Exercise for Insulin Sensitivity
Salt Lake City, Utah
The primary aim of this study is to evaluate if a single bout of AM vs PM resistance exercise has different effects on insulin sensitivity and sleep. A randomized cross-over trial be used to compare resistance exercise at two different times of the day. Each condition will take place in a laboratory setting. Each condition will consist of exercise, overnight sleep, and oral glucose tolerance tests the following day. The AM exercise will occur \~1.5 hours after habitual wake, and PM exercise will occur \~11 hours after habitual wake. After a 2-6 week washout, participants will complete the other condition. The hypothesis is that PM exercise will be more beneficial than AM exercise in improving insulin sensitivity. This study could identify if there is a better time of day to perform resistance exercise to decrease risk of developing Type 2 Diabetes Mellitus.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:50 - 74
Key Eligibility Criteria
Disqualifiers:Cardiovascular, Cancer, Thyroid, Sleep, Others
Must Not Be Taking:Weight Loss Medications
20 Participants Needed
Lower-body Negative Pressure Exercise for Heart Failure
Kelowna, British Columbia
The heart is a pump that must both fill and empty effectively to move blood; if it cannot move enough, heart failure may ensue. Approximately half of all adults living with heart failure have a form where the heart stiffens, which impairs its ability to fill. This form of heart failure particularly affects females and older adults. When people exercise, extra blood returns to the heart. The healthy heart can easily fill and move this extra blood to the muscles. However, when the heart's ability to fill is impaired, the extra blood can back up and pool in the lungs. Blood pooling in the lungs makes people feel breathless, although the investigators do not fully understand why, and this form of heart failure has a high risk of hospitalization and death, but few effective treatments are available. Exercise is one of the few treatments that works well if enough exercise is performed regularly. However, many people with this form of heart failure can only tolerate a small amount before stopping due to severe breathlessness, which can put them off from exercising regularly.
The study's goal is to help these people perform more exercise. The investigators will use a novel form of stationary cycling with a plastic chamber around the lower body that seals at the waist. The chamber can apply suction to the lower body during exercise which will reduce how much extra blood returns and prevent the heart and lungs from being overloaded. Participants will attend 5 visits, including 3 where they will perform a submaximal exercise test for as many minutes as possible with or without light suction. In each of these tests, the investigators will record how long they exercise and ask them to rate how breathless they feel. The investigators will also study their breathing pattern, using a mouthpiece and pressure sensor, and heart function, using ultrasound imaging.
This work will help adults living with heart failure exercise more and improve their health, and help researchers understand what causes breathlessness and develop new treatments.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:40+
Key Eligibility Criteria
Disqualifiers:Pulmonary, Metabolic, Renal, Hepatic, Others
Must Not Be Taking:Cardioactive Drugs
60 Participants Needed
Why Other Patients Applied
"I've tried several different SSRIs over the past 23 years with no luck. Some of these new treatments seem interesting... haven't tried anything like them before. I really hope that one could work."
ZS
Depression PatientAge: 51
"I changed my diet in 2020 and I’ve lost 95 pounds from my highest weight (283). I am 5’3”, female, and now 188. I still have a 33 BMI. I've been doing research on alternative approaches to continue my progress, which brought me here to consider clinical trials."
WR
Obesity PatientAge: 58
"I was diagnosed with stage 4 pancreatic cancer three months ago, metastatic to my liver, and I have been receiving and responding well to chemotherapy. My blood work revealed that my tumor markers have gone from 2600 in the beginning to 173 as of now, even with the delay in treatment, they are not going up. CT Scans reveal they have been shrinking as well. However, chemo is seriously deteriorating my body. I have 4 more treatments to go in this 12 treatment cycle. I am just interested in learning about my other options, if any are available to me."
ID
Pancreatic Cancer PatientAge: 40
"I've been struggling with ADHD and anxiety since I was 9 years old. I'm currently 30. I really don't like how numb the medications make me feel. And especially now, that I've lost my grandma and my aunt 8 days apart, my anxiety has been even worse. So I'm trying to find something new."
FF
ADHD PatientAge: 31
"I have dealt with voice and vocal fold issues related to paralysis for over 12 years. This problem has negatively impacted virtually every facet of my life. I am an otherwise healthy 48 year old married father of 3 living. My youngest daughter is 12 and has never heard my real voice. I am now having breathing issues related to the paralysis as well as trouble swallowing some liquids. In my research I have seen some recent trials focused on helping people like me."
AG
Paralysis PatientAge: 50
Exercise Program for Chronic Kidney Disease
Sacramento, California
Skeletal muscle dysfunction (sarcopenia) is an under-recognized target organ complication of CKD with substantial adverse clinical consequences of disability, hospitalization, and death. Sarcopenia in this proposal is defined by impaired metabolism and physical function associated with decreased skeletal muscle mass or function. Skeletal muscle tissue relies on mitochondria to efficiently utilize oxygen to generate ATP. Impaired mitochondrial energetics is a central mechanism of sarcopenia in CKD. The investigators propose a series of studies designed to shed light on the pathophysiology of sarcopenia in persons with CKD not treated with dialysis. Investigators will conduct a randomized-controlled intervention trial of combined resistance training and aerobic exercise vs. health education to assess changes in skeletal muscle mitochondrial function, metabolism and physical function. Investigators hypothesize that exercise improves mitochondrial function and physical function in persons with CKD. If successful, these experiments will identify novel pathophysiologic mechanisms for CKD-associated sarcopenia. The proposed study will provide useful insight into benefits associated with exercise among patients with CKD and investigate mechanisms associated with improved metabolism, muscle function and physical function in population.
No Placebo Group
Trial Details
Trial Status:Active Not Recruiting
Trial Phase:Phase 2
Age:30 - 75
Key Eligibility Criteria
Disqualifiers:Transplantation, Pregnancy, COPD, Cancer, Others
Must Not Be Taking:Muscle Relaxants, Antipsychotics, Anticoagulants, Antiplatelets
32 Participants Needed
Cardiac Pacing for Heart Failure
Iowa City, Iowa
A clinical trial of exercise-similar heart rate acceleration delivered via cardiac pacing vs. sham intervention in subjects at rest will be performed. The study population comprises subjects with guideline-directed medically managed left ventricular dysfunction due to ischemic or non-ischemic cardiomyopathy and an existing implantable cardioverter defibrillator or biventricular implantable cardioverter defibrillator. The purpose of the study is to understand how the heart rate pattern of exercise contributes to the considerable cardiac conditioning effects of exercise and estimate whether the pacing approach may have translational clinical applicability. Fifty-two subjects will be randomized, single-blinded, to either the pacing intervention or a sham intervention which they will receive once daily, 3 days/week for 6 weeks. Baseline symptoms and clinical test results will be compared to the same measures at 2 weeks, 4 weeks and 6 weeks of intervention/sham and at 3 months and one-year post-intervention. The primary endpoint will be the change in left ventricular ejection fraction from baseline in intervention vs. sham groups (mixed effects linear regression with time and treatment arm as fixed effects and pre-specified covariates of sex and cardiomyopathy type as random effects). Secondary endpoints will include changes in quality of life, 6-minute walk distance, cardiopulmonary exercise test (CPET) measures, daily activity and major adverse cardiac events (MACE) at 3 and 12 months between pacing and sham groups. A "dose-response" analysis of outcomes at 2, 4, and 6 weeks of the intervention vs. sham compared with baseline will be performed.
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Key Eligibility Criteria
Disqualifiers:Atrial Arrhythmias, Valve Disease, Pregnancy, Others
52 Participants Needed
Passy-Muir Valve for Exercise Endurance in Tracheostomy Patients
Wallingford, Connecticut
The purpose of this study is to determine if the use of the Passy-Muir Valve improves endurance for patients in the Long Term Acute Care setting as measured with the Six- Minute Walk Test.
No Placebo Group
Trial Details
Trial Status:Enrolling By Invitation
Key Eligibility Criteria
Disqualifiers:Not Listed
30 Participants Needed
Ketone Supplementation for Polycystic Ovary Syndrome
Montréal, Quebec
Polycystic ovary syndrome (PCOS) affects 1 in 5 females of reproductive age. Commonly characterized as a disorder of infertility, PCOS is often accompanied by 3 potent cardiovascular disease (CVD) risk factors: insulin resistance, endothelial dysfunction, and elevated blood pressure. Accordingly, PCOS is associated with the development of CVD, the second leading cause of death in females in Canada. However, effective treatments to improve cardiovascular health in PCOS are lacking.
Exogenous ketone monoester (KME) ingestion has been shown to improves outcomes associated with insulin resistance, endothelial function, and blood pressure regulation in healthy individuals and individuals predisposed to CVD. Therefore, oral ketone supplements offer a practical and effective strategy for improving cardiovascular health; however, this treatment has yet to be evaluated in PCOS.
Therefore, the overall goal of this project is to employ KME ingestion to improve markers of cardiovascular health in females with PCOS.
On two different days, participants will consume either a beverage containing a ketone supplement or a beverage containing a placebo supplement. The objectives are to compare responses between KME and placebo ingestion, and examine all outcomes related to cardiovascular health in females with PCOS in comparison with female controls of similar age and body mass index. The effects of KME ingestion will be quantified on: 1) glycemic control during an oral glucose tolerance test; 2) endothelial function using the flow-mediated dilation test; 3) blood pressure and acute blood pressure regulation; and 4) hemodynamic responses to acute exercise.
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 40
Key Eligibility Criteria
Disqualifiers:Smoking, Cardiometabolic Disease, Pregnancy, Others
Must Not Be Taking:Anti-hypertensives, Anti-androgens, Metformin
60 Participants Needed
Exercise Intervention for Cardiometabolic Health
Boston, Massachusetts
The goal of this study is to understand the interaction between the circadian system and physical activity.
Participants will:
* complete 2 inpatient stays
* perform moderate exercise
* be provided with identical meals
* have frequent blood draws
* provide urine and saliva samples
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 45
Key Eligibility Criteria
Disqualifiers:Smoking, Pregnancy, Psychiatric Illness, Others
26 Participants Needed
Exercise Training for Heart Failure
Salt Lake City, Utah
Heart failure with preserved ejection (HFpEF) disproportionately affects Veterans and is the number one reason for hospital discharge in the VA Health Care System. Exercise intolerance is a common complication experienced by patients with HFpEF, perpetuating physical inactivity and accelerating disease progression. This research proposal aims to elucidate mechanisms responsible for inadequate skeletal muscle blood flow and exercise intolerance in patients with HFpEF compared with healthy controls as well as following 8 weeks of exercise training in patients with HFpEF only.
No Placebo Group
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Key Eligibility Criteria
Disqualifiers:Prior EF <50%, NYHA Class IV, Others
Must Not Be Taking:Hormone Replacement Therapy
35 Participants Needed
L-Citrulline + BH4 + Atorvastatin for Heart Failure
Salt Lake City, Utah
This project will evaluate the impact of L-Citrulline, tetrahydrobiopterin (BH4), and atorvastatin administration on physical capacity and vascular function in Veterans with heart failure with preserved ejection fraction (HFpEF).
Trial Details
Trial Status:Recruiting
Trial Phase:Phase 1
Key Eligibility Criteria
Disqualifiers:Hypersensitivity To Statins, NYHA Class IV, Active Liver Disease, Others
Must Not Be Taking:Antioxidants, Nitrates, PDE-5 Inhibitors, Statins
90 Participants Needed
Exercise + Heat Stress for Cardiometabolic Health
Flagstaff, Arizona
Life in space is completely void of physical and environmental stress. It is well known that living things need regular physical stress (e.g. exercise) to remain strong, functional and healthy. More and more research is showing that regular environmental stress, for example heat and hypoxia, can further improve physical health. Astronauts aboard the international space station (ISS) exercise for 1-2 hours every day to avoid physical deconditioning that would otherwise cause them to age rapidly in space. Although physical exercise is very effective in remedying this deconditioning, today's astronauts still have physiological changes that indicate accelerated aging. This is a cause for concern given NASA's priority to travel to mars within the next decade; a mission that will require at least double the duration in space for our astronauts. The investigators think that the complete absence of environmental stress, i.e., heat, may be contributing to the accelerated aging that occurs during spaceflight. Our study will assess the health effects of adding heat stress to exercise that could be performed in space by astronauts. The goal is to inform best practice for astronauts to avoid physical deconditioning during long-duration spaceflight. This information will also be relevant to life on earth as spaceflight is a model of inactivity here on earth. Therefore, the potential benefits of adding heat stress will likely translate to life in space and on earth.
Trial Details
Trial Status:Recruiting
Trial Phase:Unphased
Age:18 - 50
Key Eligibility Criteria
Disqualifiers:Smokers, Asthma, Obesity, Alcoholism, Others
Must Not Be Taking:Anti-arrhythmogenics, Inhalers
15 Participants Needed
Inhaled Treprostinil for Mild COPD
Edmonton, Alberta
The goal of this clinical trial is to evaluate the impact of inhaled Treprostinil on breathlessness and low exercise capacity in patients living with mild chronic obstructive pulmonary disease. Participants will be asked to:
* Perform lung function and exercise tests
* Have ultrasound of their heart
* Have CT images of their lungs
* Visit the lab on 5 different occasions (plus one visit to the CT imaging clinic)
The researchers will compare the effectiveness and feasibility of inhaled Treprostinil to improve breathlessness upon exertion and exercise capacity
Trial Details
Trial Status:Recruiting
Trial Phase:Phase 2
Age:50 - 85
Key Eligibility Criteria
Disqualifiers:Heart Failure, Hypertension, Thrombocytopenia, Others
20 Participants Needed
Oral Sildenafil for COPD
Edmonton, Alberta
Chronic obstructive pulmonary disease (COPD) is a condition characterized by airway obstruction. Patients with COPD experience significant shortness of breath on exertion. The mechanisms responsible for shortness of breath on exertion are well understood in moderate and severe COPD, but, are poorly understood in mild COPD where symptoms appear disproportionate to the degree of airway obstruction.
Mild COPD patients show an exaggerated breathing response to exercise, determined by the breathing response to carbon dioxide production (V̇E/V̇CO2). Recent work suggests that the increased V̇E/V̇CO2 during exercise in mild COPD is secondary to increased deadspace (i.e. lung regions with ventilation but no perfusion) and/or ventilation/perfusion (V̇A/Q) inequality (poor matching of ventilation to perfusion). Researchers have proposed that the increased deadspace or V̇A/Q inequality is secondary to pulmonary vascular dysfunction and hypoperfusion of the pulmonary capillaries.
Recently, we have shown that inhaled nitric oxide, a potent dilator of pulmonary vasculature, reduces shortness of breath and V̇E/V̇CO2, and improves exercise capacity in mild COPD. This preliminary finding suggests that pulmonary vascular dysfunction is an important contributor to exercise intolerance in mild COPD. Here, we aim to test whether sildenafil, an oral pulmonary vasodilator, can improve exercise tolerance and shortness of breath in mild COPD.
Trial Details
Trial Status:Recruiting
Trial Phase:Phase 2
Age:40 - 80
Key Eligibility Criteria
Disqualifiers:Cardiac Conditions, Pulmonary Hypertension, Pregnancy, Others
Must Not Be Taking:Nitrates, Opioids, Azole Antifungals, Others
160 Participants Needed
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Frequently Asked Questions
How much do Exercise Intolerance clinical trials pay?
Each trial will compensate patients a different amount, but $50-100 for each visit is a fairly common range for Phase 2–4 trials (Phase 1 trials often pay substantially more). Further, most trials will cover the costs of a travel to-and-from the clinic.How do Exercise Intolerance clinical trials work?
After a researcher reviews your profile, they may choose to invite you in to a screening appointment, where they'll determine if you meet 100% of the eligibility requirements. If you do, you'll be sorted into one of the treatment groups, and receive your study drug. For some trials, there is a chance you'll receive a placebo. Across Exercise Intolerance trials 30% of clinical trials have a placebo. Typically, you'll be required to check-in with the clinic every month or so. The average trial length for Exercise Intolerance is 12 months.How do I participate in a study as a "healthy volunteer"?
Not all studies recruit healthy volunteers: usually, Phase 1 studies do. Participating as a healthy volunteer means you will go to a research facility several times over a few days or weeks to receive a dose of either the test treatment or a "placebo," which is a harmless substance that helps researchers compare results. You will have routine tests during these visits, and you'll be compensated for your time and travel, with the number of appointments and details varying by study.What does the "phase" of a clinical trial mean?
The phase of a trial reveals what stage the drug is in to get approval for a specific condition. Phase 1 trials are the trials to collect safety data in humans. Phase 2 trials are those where the drug has some data showing safety in humans, but where further human data is needed on drug effectiveness. Phase 3 trials are in the final step before approval. The drug already has data showing both safety and effectiveness. As a general rule, Phase 3 trials are more promising than Phase 2, and Phase 2 trials are more promising than phase 1.Do I need to be insured to participate in a Exercise Intolerance medical study ?
Clinical trials are almost always free to participants, and so do not require insurance. The only exception here are trials focused on cancer, because only a small part of the typical treatment plan is actually experimental. For these cancer trials, participants typically need insurance to cover all the non-experimental components.What are the newest Exercise Intolerance clinical trials ?
Most recently, we added Dietary Strategies for Prediabetes, Inhaled Treprostinil for Mild COPD and Swallowing Exercises for Obstructive Sleep Apnea to the Power online platform.Popular Searches
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