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This study will examine the effects of a 12 week hot yoga intervention on vascular health in adults between the ages of 20 and 65. The investigators are seeking individuals with slightly elevated blood pressure and stage I hypertension who are not currently taking blood pressure medications or exercising regularly. Participants will receive 12 weeks of free yoga for their participation.
This study will examine the effects of a 12 week hot yoga intervention on vascular health by assessing changes of pre-intervention and post-intervention measurements in ambulatory blood pressure, endothelial function, and arterial stiffness in adults between the ages of 20 and 65. The investigators are seeking individuals with elevated blood pressure and stage I hypertension who are not currently taking blood pressure medications or exercising regularly. Participants will receive 12 weeks of free yoga for their participation.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 90-minute Hot Yoga Classes | Experimental | This group will complete 3, 90-minute hot yoga classes weekly for 12 weeks. |
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| 60-minute Hot Yoga Classes | Experimental | This group will complete 3, 60-minute hot yoga classes weekly for 12 weeks. |
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| Control | No Intervention | This group will maintain their current physical activity for 12 weeks. |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Hot Yoga | Behavioral | Bikram or hot yoga is a standardized series of 26 postures with two breathing exercises. Classes will be performed at local yoga studios in Austin, Texas and participants will be required to sign in for each session. All participants will receive 12 weeks of free classes for their participation. |
| Measure | Description | Time Frame |
|---|---|---|
| Averages in ambulatory blood pressure and vascular function | Blood pressure monitoring using an arm cuff for one full day before and after the intervention | 24 hours |
| Measure | Description | Time Frame |
|---|---|---|
| Perceived stress | "Perceived Stress Scale" questionnaire will be filled out by participant before and after the intervention in order to asses current perception of stress of daily living. 10 total questions, scaled from 0 to 4, 4 being the most often a participant felt stress and carries a weight of 5 and 0 holds a weight of 1. Question 4, 5, 7, and 8 have reversed values where 0 is the most heavily weighted and 4 is the least. The total is added up upon completion of each test and can be compared to before and after values. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Monica Gonzales | Texas State University IRB | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Texas State University | San Marcos | Texas | 78666 | United States |
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| ID | Term |
|---|---|
| D006973 | Hypertension |
| ID | Term |
|---|---|
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
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| 5 minutes |
| Brachial artery endothelial function | Ultrasound imaging of the upper arm before and after 5 minutes of lower arm cuff inflation (this cuff similar to a blood pressure cuff but smaller) before and after the intervention. Arterial diameter images will be analyzed for baseline and post-cuff release diameters and flow-mediated dilation will be quantified as the percentage change in arterial diameter from baseline. | 15 minutes |
| Arterial Stiffness | Tonometry readings of the carotid and femoral artery pulses assessing pulse wave velocity before and after the intervention. Pulse wave velocity will be determined by dividing the distance traveled in millimeters by the time delay between the initiations of the carotid and femoral pulse waveforms in seconds. | 10 minutes |