Additional Improvement of Respiratory Technique on Vascular Function in Hypertensive Postmenopausal Women Following Yoga or Stretching Video Classes: The YOGINI Study
Bibliographic record
Abstract
Background: Hypertension remains highly prevalent in post-menopausal women, along with vascular dysfunction and increased oxidative stress. In such context, regular exercises, yoga practice and slow breathing have been recommended to treat hypertension. However, the effects of the multiple components of yoga, including the respiratory techniques involved in the practice, on hypertension and on vascular and endothelial function have never been evaluated. Objective: This study aimed to investigate the additional effects of respiratory technique on vascular function and oxidative stress profile in hypertensive post-menopausal women (HPMW) following yoga or stretching video classes. Study Design: HPMW were recruited and randomized for 12 weeks, twice a week, of supervised yoga or stretching video classes of 75 minutes for 12 weeks associated or not with respiratory technique. Baseline and post intervention measurements included pulse wave velocity (PWV), flow mediated dilation (FMD), as well as oxidative stress parameters. HPMW (59 ± 0.7 years) who ended the protocol were distributed into three groups: 1) Control Group (Yoga or Stretching, C, n=14); 2) Yoga + respiratory technique (Y+, n=10); 3) Stretching + respiratory technique (S+, n=9). Results: Diastolic blood pressure (DBP) and FMD (baseline- C: 6.94 ± 1.97, Y+: 7.05±1.65 and S+ 3.54±2.01% vs. post- C: 16.59 ± 3.46 (p = 0.006), Y+: 13.72±2.81 (p=0.005) and S+ 11.79±0.99% p=0.0001) have significantly increased in all groups when baseline and post practice values were compared. However, resting heart rate and PWV (baseline- Y+: 10.44±3.69 and S+: 9.50±0.53 m/s vs. post- Y+: 9.45±0.39, p=0.003 and S+: 8.02±0.47 m/s p=0.003) decreased significantly only in Y+ and S+ groups (baseline vs. post). Systemic antioxidant enzyme activities (superoxide dismutase and catalase) increased in all groups and hydrogen peroxide and lipoperoxidation reduced in Y+ and S+ (baseline vs. post). Conclusions: Twelve weeks of yoga or stretching video classes promoted positive changes in several outcomes generally regarded as cardiovascular risk factors in HPMW, and these changes were even more pronounced by the association with respiratory technique.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".