Obesity Clinical Trial
Official title:
Effects of Hypocaloric Diets With Different Glycemic Loads on Pulse Wave Velocity in Overweight and Obese Adults: a Randomized Clinical Trial
Worldwide, in terms of attributable deaths, the main intermediate risk factor for the development of cardiovascular diseases is systemic arterial hypertension, followed by overweight and sustained hyperglycemia. These factors have positively influenced public and private spending on health. The more robust studies showed that age is one of the main determinants of arterial stiffness. However, there is a possibility that other variables, such as elevated glucose levels, obesity, and systemic inflammation itself, as well as insulin resistance are important factors in this scenario. On the other hand, the measurement of the pulse wave velocity is widely acceptable for the evaluation of the arterial stiffness, inferring the cardiovascular risk in different populations. Since arterial stiffness is influenced by hemodynamic forces and inflammatory mediators, which may be related to sodium and glucose balance, it is necessary to evaluate whether a hypocaloric and low glycemic load diet, in a thesis that decreases lipid and inflammatory levels, may have favorable effects on pulse wave velocity in overweight adults.
Status | Not yet recruiting |
Enrollment | 92 |
Est. completion date | July 31, 2021 |
Est. primary completion date | December 31, 2020 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 20 Years to 59 Years |
Eligibility |
Inclusion Criteria: - Both sex - Between 20 and 59 years old - Body mass index = 25.0 kg/m² - Physically inactive (physical activity <150 min/week) Exclusion Criteria: - Pregnant women - Vegetarians - Vegans - Users of dietary supplements - Smokers - Alcohol abusers (men: more than 4 doses in a single day or more than 14 doses per week; women: more than 3 doses in a single day or more than 7 doses per week) - Individuals with a previous diagnosis of hypertension - Chronic kidney disease - Type 1 or 2 diabetes mellitus - Hypothyroidism - Hyperthyroidism - Events in the last 6 months (coronary artery disease, acute myocardial infarction, cerebral vascular disease, peripheral arterial disease, or heart failure) |
Country | Name | City | State |
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n/a |
Lead Sponsor | Collaborator |
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Instituto de Cardiologia do Rio Grande do Sul |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Pulse wave velocity | The calibrated and validated Mobil-O-Graph® portable monitor (IEM GmbH, Stolberg, Germany) will be used. This module is connected to a computer to record the brachial pulse wave. It performs pulse wave analysis based on the oscillometric method. The arterial pulsation generates pressure oscillations, which are transmitted to the blood pressure cuff and measured by the transducer to be interpreted by a specific software, recording the pulse wave of the brachial artery and deriving a pulse wave from the aortic arch. All measurements will be performed by the same evaluator on the right side of the volunteer, at rest. Subjects will be instructed to be with empty bladder, not to drink coffee 60 minutes before gauging and alcoholic beverage in the last 24 hours. The pulse wave velocity will be evaluated before the beginning of the diets and 6 weeks after the beginning of the diets. |
6 weeks |
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