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Stress appraisal is associated with sympathetic neural reactivity to mental stress in humans.
J Appl Physiol (1985)
January 2025
Department of Health, Human Performance, and Recreation, Baylor University, Waco, Texas, United States.
Muscle sympathetic nerve activity (MSNA) responsiveness to mental stress is highly variable between individuals. Although stress perception has been posited as a contributor to the MSNA variability during mental stress, prior studies have been inconclusive. Furthermore, the importance of stress appraisal and coping on MSNA reactivity to mental stress has not been investigated.
View Article and Find Full Text PDFProcurement and preservation of neonatal porcine cardiac tissue.
Am J Physiol Heart Circ Physiol
December 2024
Animal, Veterinary and Food Sciences, University of Idaho, Moscow, Idaho, United States.
The porcine and human heart are remarkably similar in cardiac physiology and biochemistry. Translational research involving the porcine biomedical model is becoming increasingly applicable for the study of human cardiac function in health and disease. Presently, few protocols exist for collecting experimentally viable cardiac tissue from large animal models, particularly during neonatal maturation.
View Article and Find Full Text PDFRelationship between regional sympathetic vascular transduction and sympathetic transduction of blood pressure in young adults at rest.
Am J Physiol Regul Integr Comp Physiol
December 2024
Human Cardiovascular Physiology Laboratory, Department of Human Health and Nutritional Sciences, University of Guelph, Guelph, Ontario, Canada.
Article Synopsis
- A study examined how bursts of muscle sympathetic nerve activity (MSNA) affect regional blood flow and overall blood pressure (BP) in 14 young adults after a meal and rest.
- Researchers recorded various metrics, including MSNA, heart rate, BP, and blood flow in the femoral artery, to analyze the relationship between changes in BP and vascular conductance.
- The findings showed that changes in BP are moderately related to regional vascular conductance, suggesting that measuring BP can provide insight into localized vascular responses to sympathetic nerve activity.
Emerging Paradigms in Fetal Heart Rate Monitoring: Evaluating the Efficacy and Application of Innovative Textile-Based Wearables.
Sensors (Basel)
September 2024
Department of Materials, The University of Manchester, Manchester M13 9PL, UK.
This comprehensive review offers a thorough examination of fetal heart rate (fHR) monitoring methods, which are an essential component of prenatal care for assessing fetal health and identifying possible problems early on. It examines the clinical uses, accuracy, and limitations of both modern and traditional monitoring techniques, such as electrocardiography (ECG), ballistocardiography (BCG), phonocardiography (PCG), and cardiotocography (CTG), in a variety of obstetric scenarios. A particular focus is on the most recent developments in textile-based wearables for fHR monitoring.
View Article and Find Full Text PDF3DECG-Net: ECG fusion network for multi-label cardiac arrhythmia detection.
Comput Biol Med
November 2024
BioMedical Machine Learning Lab, School of Biomedical Engineering, UNSW Sydney, Randwick, NSW 2052, Australia.
Cardiovascular diseases represent the leading global cause of death, typically diagnosed and addressed through electrocardiograms (ECG), which record the heart's electrical activity. In recent years, there has been a notable surge in ECG recordings, driven by the widespread use of wearable devices. However, the limited availability of medical experts to analyze these recordings underscores the necessity for automated ECG analysis using computer-aided methods.
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