Heart Failure Clinical Trial
Official title:
Acute Effects of Beet Juice Consumption on Exercise Capacity in Heart Failure
The purpose of this project will be to determine whether consumption of beet juice concentrate prior to exercise may acutely improve exercise tolerance in patients with heart failure.
Participants will complete up to four study visits. The first visit will involve completion
of the informed consent process followed by a screening for study eligibility. The screening
will consist of questionnaires pertaining to detailed medical history, diet, physical
activity, and health-related quality of life (KCCQ). Anthropometric measures and a general
health screening (including heart rate, resting blood pressure, and small blood (<15 mL) and
urine samples will be collected). Volunteers meeting eligibility requirements will be
scheduled for a screening maximal cardiopulmonary exercise test. Immediately prior to the
exercise treadmill test, each subject will have a resting ECG and blood pressure to
determine whether there are any abnormalities that would contraindicate exercise testing.
Qualified subjects will then undergo a maximal cardiopulmonary exercise (CPX) test.
Following successful completion of the screening CPX test, volunteers meeting eligibility
requirements will be scheduled for two testing visits, at least one week apart. At one
visit, participants will consume a small cup of beet juice concentrate, and at the other,
they will consume placebo. Treatment will be double-blinded and administered in random
order.
;
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Crossover Assignment, Masking: Double Blind (Subject, Investigator, Outcomes Assessor), Primary Purpose: Supportive Care
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