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The objective of this study will be to analyze the effect of 16 weeks of Yoga training on cardiovascular, autonomic, mental health, and cognitive parameters in hypertensive individuals. This is a randomized, controlled clinical trial to be conducted with adults and elderly (40 years or older), of both sexes, diagnosed with High Blood Pressure (HBP), who will be randomized into two groups: Yoga Group (YG) and Control Group (CG). The YG will undergo a Yoga training program involving breathing techniques, mobility, physical postures, relaxation, and meditation for 16 weeks. In the first eight weeks (phase 1), three supervised weekly sessions will be held. In the last eight weeks of the study (phase 2), the training will consist of three supervised weekly sessions and the delivery of an asynchronous video lesson, with the weekly frequency then increasing (from three to four sessions per week). The video lesson will be available on a digital platform. Before, after eight weeks, and after 16 weeks, cardiovascular, autonomic, mental and cognitive health parameters will be assessed. Furthermore, the biomarkers Brain-Derived Neurotrophic Factor (BDNF), serotonin, and nitric oxide will be analyzed at different assessment times of the study, as well as biochemical profile tests (glucose, total cholesterol, among others), functional capacity tests, and body composition. This project is expected to contribute to the literature by better elucidating the effects of Yoga on the cardiovascular, mental, and cognitive health of hypertensive individuals. The SPSS (21.0) statistical package will be used for data analysis. After confirming the appropriate assumptions, generalized estimating equations will be used, followed by the Bonferroni post hoc test, with a significance level of 5%.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| YOGA | Experimental | The GY will receive an intervention involving Yoga Training (TY), which will be divided into two phases: Phase 1 (first eight weeks), which will be supervised, with three weekly sessions lasting 60 minutes, and Phase 2 (the following eight weeks), which will consist of three supervised sessions per week and the delivery of an asynchronous video lesson via a digital platform, with an incremental session of one session per week. Classes will also be 60 minutes long. The supervised sessions will take place at the UFSC CDS rehabilitation center. TY sessions will follow the following structure: breathing techniques (Pranayama), warm-up (Pavana Muktasana), physical postures in standing, sitting, and lying positions (Asanas), and relaxation (Yoganidrá). The postures will be prescribed by holding time in seconds (30 to 40 seconds), number of sets, and rest between sets. Each session will include beginner, intermediate, and advanced postures. |
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| CONTROL | Other | The CG will not receive any intervention during the study and, like the GY subjects, will be instructed not to change their routines. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| YOGA | Behavioral | The participants randomized to the yoga group will perform 16 weeks of yoga training, three times/week for 60 minutes. |
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| Measure | Description | Time Frame |
|---|---|---|
| Blood Pressure | Clinical BP (Systolic and Diastolic) will be measured using an oscillometric device (Omron HEM 742) (OMRON Healthcare, Kyoto, Japan), according to current recommendations, while ambulatory BP will be assessed over 24 hours using a DynaMAPA device (Cardios), both in accordance with current recommendations (FEITOSA et al., 2024). | Baseline, 8 and 16 weeks |
| Measure | Description | Time Frame |
|---|---|---|
| Quality of life | Quality of life will be assessed using the EuroQol 5 Dimensions 5 Levels (EQ-5D-5L) (EUROQOL, 2025; VAN ROTTERDAM, HENSLEY, HAZELTON, 2021). This questionnaire was introduced by the EuroQol Group in 2009. This questionnaire assessed quality of life and health perception, consisting of a page with an objective questionnaire and another page with a visual analog scale. The objective questionnaire is divided into five aspects: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Each aspect has five levels ranging from "no problem" (1) to "extreme problem" (5), thus, higher scores denote a worse quality of life. The scale allows participants to record their overall health perception on a vertical scale, from 0 (worst health) to 100 (best health) (BAGATTINI, 2015). |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Aline Gerage, PhD | Contact | 554837218554 | alinegerage@yahoo.com.br |
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Universidade Federal de Santa Catarina | Recruiting | Florianópolis | Santa Catarina | 88040-900 | Brazil |
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| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot_SAP_ICF | Yes | Yes | Yes | Study Protocol, Statistical Analysis Plan, and Informed Consent Form | Aug 1, 2025 | Aug 1, 2025 | Prot_SAP_ICF_000.pdf |
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| ID | Term |
|---|---|
| D006973 | Hypertension |
| ID | Term |
|---|---|
| D014652 | Vascular Diseases |
| D002318 | Cardiovascular Diseases |
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| ID | Term |
|---|---|
| D015013 | Yoga |
| ID | Term |
|---|---|
| D026441 | Mind-Body Therapies |
| D000529 | Complementary Therapies |
| D013812 | Therapeutics |
| D026443 | Spiritual Therapies |
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| Control | Behavioral | Usual care |
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| Baseline, 8 and 16 weeks |
| Cognitive function | Cognitive function will be assessed using the Montreal Cognitive Assessment (MoCA) questionnaire, which comprises eight domains. The maximum score is 30 points, corresponding to the best cognitive ability (HOBSON, 2015). | Baseline, 8 and 16 weeks |
| Sleep Quality | Sleep quality will be assessed using the Pittsburgh Sleep Quality Index (PSQI-BR) (BERTOLAZI et al., 2011; BUYSSE, 1989). It consists of a questionnaire composed of 19 self-administered questions, followed by five questions to be answered by the bed partner, if available. This questionnaire is composed of seven domains: subjective sleep quality, sleep latency, sleep duration, habitual sleep efficiency, sleep disturbances, use of sleep medication, and daytime dysfunction (BERTOLAZI et al., 2011). Minimum: 0 points → excellent sleep and Maximum: 21 points → very poor sleep. | Baseline, 8 and 16 weeks |
| Depressive Symptoms | Depressive symptoms will be assessed using the Patient Health Questionnaire-9 (PHQ-9) (APA, 2000; SANTOS et al., 2013), containing nine questions that assess the presence of symptoms of a major depressive episode, described in the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV): depressed mood, anhedonia, problems with sleep, fatigue or lack of energy, changes in appetite or weight, feelings of guilt or worthlessness, trouble concentrating, feeling sluggish or restless, and suicidal thoughts (APA, 2000). The PHQ9 assesses the frequency of symptoms in the past two weeks, assessed on a scale with the possible responses of "none of the time," "several days," "more than half the days," and "almost every day" (SANTOS et al., 2013). Values can range from 0 to 27, with higher values indicating a greater presence of depressive symptoms. | Baseline, 8 and 16 weeks |
| Stress | Perceived stress will be assessed using the Perceived Stress Scale-10 (PSS-10) (SIQUEIRA REIS, FERREIRA HINO & RODRIGUEZ AÑEZ, 2010). It is an instrument that assesses the level of stress perceived by the person in recent weeks, that is, how they interpret and feel life situations as stressful. There are 10 items, each with answers from 0 to 4 points. Minimum possible: 0 points → no perceived stress and Maximum possible: 40 points → very high perceived stress. Higher values = greater perception of stress | Baseline, 8 and 16 weeks |
| Attention and inhibitory response capacity | The Stroop Test will assess attention and inhibitory response capacity, calculating response time and accuracy. Better results are associated with shorter response times and fewer errors. By comparing congruent and incongruent conditions, cognitive interference and inhibitory control will be assessed (STROOP, 1935). Shorter reaction time and fewer errors → better cognitive performance and Longer reaction time and more errors → worse performance (may reflect attention difficulties, but not necessarily anxiety). There is no single universal minimum and maximum value. | Baseline, 8 and 16 weeks |
| Health related quality of life | The Short Form Health Survey - 36 items (SF-36) It is a questionnaire that measures health-related quality of life in a broad way, covering physical, emotional and social aspects. Assesses 8 domains: Functional capacity, Physical aspects, Pain, General health, Vitality, Social aspects, Emotional aspects and Mental health. The SF-36 has a scoring system in which higher values indicate better, not worse, quality of life. Score for each domain: ranges from 0 to 100 0 → worst possible state 100 → best possible state Summary scores (physical and mental components) are also typically converted to this 0-100 scale (Ware; Sherboune, 1992). | Baseline, 8 and 16 weeks |
| Anxiety | Hospital Anxiety and Depression Scale (HAD) is an instrument used to assess symptoms of anxiety and depression in patients. HAD-A → Anxiety Subscale (7 items) and HAD-D → Depression Subscale (7 items). Each item is scored from 0 to 3. Subscale score: Minimum: 0 points (no symptoms) and Maximum: 21 points (very severe symptoms). Higher values indicate more symptoms of anxiety or depression, depending on the subscale. | Baseline, 8 and 16 weeks |
| D026241 |
| Exercise Movement Techniques |
| D026741 | Physical Therapy Modalities |