Higher levels of vigorous physical activity are associated with enhanced nocturnal blood pressure dipping
Notice bibliographique
Résumé
Introduction: Nocturnal blood pressure (BP) dipping determined from 24-hour ambulatory blood pressure monitoring (ABPM) is associated with reduced cardiovascular disease (CVD) risk. Physical activity lowers the risk of CVD related, in part, to preserved endothelial function and lower aortic stiffness, however the relation between physical activity and nocturnal dipping remains unclear. The objective of our cross-sectional retrospective analysis was to assess the relation between physical activity and nocturnal BP dipping, and whether this relation was confounded by measures of vascular function. We hypothesized that higher levels of physical activity would be associated with greater nocturnal BP dipping. Methods: Healthy adults (n=172, age 19 to 65 years, 55% female) had 24-hour ABPM measured. BP recordings were taken every 30 min during the daytime and every 60 min during the nighttime. Nocturnal “dippers” had a 10-20% difference between their mean daytime and nighttime systolic BP and “non-dippers/inverse dippers” had <10% difference. The modifiable activity questionnaire was used to assess physical activity levels via self-reported days/week with greater than 30 min of moderate activity (3.0-6.0 METs) and vigorous activity (>6.0 METs). Endothelial function (brachial artery flow-mediated dilation, FMD), and aortic stiffness (carotid-femoral pulse wave velocity, cfPWV) were also assessed. Results: Nocturnal BP dippers performed more days/week of moderate and vigorous physical activity compared to non-dippers (P=0.007 and P=0.008, respectively). Both moderate (B=0.386, P=0.042) and vigorous physical activity (B=0.604, P=0.002) were associated with nocturnal BP dipping in univariate linear regression analyses. However, only vigorous activity (B=0.926, P=0.001) remained associated with nocturnal BP dipping after adjustment for age, BMI, 24-hr systolic BP and diastolic BP, brachial FMD and cfPWV. Conclusion: Vigorous physical activity may attenuate CVD risk in part from enhanced nocturnal BP dipping. Future studies should investigate additional mechanisms by which vigorous physical activity may enhance nocturnal BP dipping. This study was supported by grants from the National Institutes of Health (AG063790; HL014388, HL07121; AG043722). Dr. Pierce is supported by the Russell B. Day and Florence D. Day Endowed Chair in Liberal Arts and Sciences, University of Iowa. This is the full abstract presented at the American Physiology Summit 2023 meeting and is only available in HTML format. There are no additional versions or additional content available for this abstract. Physiology was not involved in the peer review process.
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,001 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découleClassification
machine, non validéePrédiction automatique; un appel candidat d’une seule tête enseignante, pas un consensus.
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