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The purpose of this study is to explore the influence of sodium intake on arterial stiffness in African American/Black adults.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Low- and high-sodium intake | Experimental | Participants will consume two different quantities of sodium per day for 3 days each. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Low-sodium intake | Behavioral | Participants will consume less than or equal to 720 milligrams of sodium per day for 3 days. |
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| Measure | Description | Time Frame |
|---|---|---|
| Cardio-ankle vascular index | Cardio-ankle vascular index will be assessed using simultaneous arm and ankle blood pressures, EKG, and phonocardiography | This measurement will take approximately 1 minute and will be completed twice. |
| Ambulatory blood pressure | 24-hour ambulatory blood pressure monitoring will be completed on day 3 of each dietary condition. | This measurement will take approximately 24 hours and will be obtained from the date of enrollment until the date of completion of the study up to 10 days after enrollment. |
| Measure | Description | Time Frame |
|---|---|---|
| Renal sodium excretion | 24-hour urine samples will be analyzed for sodium concentrations and sodium excretion will be determined. | This measurement will be obtained from the date of enrollment until the date of completion of the study up to 10 days after enrollment. |
| Measure | Description | Time Frame |
|---|---|---|
| Hematocrit | Hematocrit will be determined from whole blood samples after each 3-day dietary condition. | This measurement will be obtained from the date of enrollment until the date of completion of the study up to 10 days after enrollment. |
Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Texas State University | San Marcos | Texas | 78666 | United States |
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| High-sodium intake | Dietary Supplement | Participants will supplement their existing diets with 10 salt tablets daily for 3 days. |
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