[Figure: see text].
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| http://dx.doi.org/10.1161/HYPERTENSIONAHA.120.16113 | DOI Listing |
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Stressbusters: a pilot study investigating the effects of OMT on stress management in medical students.
J Osteopath Med
December 2024
Associate Professor of Osteopathic Medicine, Touro College of Osteopathic Medicine Harlem, New York, USA.
Context: Medical students report high levels of perceived stress and burnout, especially during the preclinical years. The combination of physical stressors from poor posture, poor sleep quality, and mental stressors from the rigorous curriculum stimulates the sympathetic nervous system (SNS) to secrete cortisol. Previous studies have shown that persistent elevated cortisol levels are associated with negative health outcomes.
View Article and Find Full Text PDFComparison of 1-hour floatation-REST versus conventional napping on heart rate variability in active individuals.
BMJ Open Sport Exerc Med
December 2024
Department of Sports Medicine, Swiss Olympic Medical Center, Lausanne University Hospital, Lausanne, Switzerland.
Objectives: This study aimed to investigate the short-term effects of a 1-hour floatation-resting environmental therapy (FLO) versus conventional napping (NAP) on heart rate variability (HRV) in highly trained individuals.
Methods: 20 non-fatigued participants underwent a prospective randomised interventional study comparing the impacts of FLO and NAP on both supine and standing HRV. Measurements were taken before and after each intervention under controlled conditions, and subjective experiences were assessed through questionnaires.
Morning versus Nocturnal Heart Rate and Heart Rate Variability Responses to Intensified Training in Recreational Runners.
Sports Med Open
November 2024
Department of Sports and Exercise Medicine, Clinicum, University of Helsinki, Helsinki, Finland.
Background: Resting heart rate (HR) and HR variability (HRV) are widely used parameters to assess cardiac autonomic nervous system function noninvasively. While resting assessments can be performed during sleep or after awakening, it would be relevant to know how interchangeable the results of these measurements are. This study aimed at examining the alignment between nocturnal and morning assessments during regular endurance training and in response to intensive training.
View Article and Find Full Text PDFNoninvasive Assessment of Temporal Dynamics in Sympathetic and Parasympathetic Baroreflex Responses.
bioRxiv
October 2024
Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina.
Article Synopsis
- The study focuses on the baroreflex system, crucial for regulating blood pressure and heart function, by developing a noninvasive method to assess its sympathetic and parasympathetic branches simultaneously.
- Researchers analyzed data from cardiothoracic surgery patients and other subjects to estimate key cardiovascular parameters and calculate baroreflex sensitivity (BRS) using pulse contour analysis and a sequence method.
- Results showed that parasympathetic BRS for heart rate was linked to heart rate variability metrics, while sympathetic BRS was associated with blood pressure, cardiac output, and heart rate variability under different conditions, suggesting nuanced autonomic responses to postural changes.
Heart Rate Variability, Blood Pressure and Peripheral Oxygen Saturation during Yoga and Breathing Techniques without Retention in Adult Practitioners.
J Funct Morphol Kinesiol
October 2024
Sport Sciences School of Rio Maior, Santarém Polytechnic University, Avenue Dr. Mário Soares No. 110, 2040-413 Rio Maior, Portugal.
Heart rate variability (HRV) is the change in time intervals between heart beats, reflecting the autonomic nervous system's ability to adapt to psychological and physiological demands. Slow breathing enhances parasympathetic activity, increasing HRV. , a yoga breathing technique, affords the conscious regulation of respiration frequency.
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