View clinical trials related to Stress, Physiological.
Filter by:The goal of this pilot SKY (Sudarshan Kriya Yoga) Breath Meditation study is to establish feasibility and acceptability of the intervention; and investigate preliminary effectiveness of the intervention at the DNA methylation, RNA and protein levels in blood samples collected from participants before and after the 8 week SKY intervention. Primary outcomes also include preliminary effectiveness at the physiological level using a wearable device used for continuous monitoring. Secondary outcome measures include behavioral inventories.
Purpose: The investigators hypothesize that exposure to chronic environmental stress is a risk factor for adverse pregnancy outcomes related to preterm birth and preeclampsia among high-risk pregnant women. Additionally, the investigators hypothesize that women can be screened for high levels of environmental stress through the perceived stress scale, and therapeutic writing can be used as a low-resource intervention to help decrease maternal perceived stress and inflammation - measured through analysis of maternal serum and placental samples. Participants: Pregnant women at high risk for adverse pregnancy outcomes, including pre-eclampsia and preterm birth, enrolled in prenatal care at UNC will be recruited for participation Procedures: Using results from the perceived stress scale, the investigators will identify women who screen positive for high environmental stress. Women meeting inclusion criteria will be contacted for possible participation at regularly scheduled prenatal visits. Women who are enrolled will be randomized to generalized writing prompts, therapeutic writing prompts, or no writing during their pregnancy to be administered at each prenatal visit. Maternal blood sample for biochemical markers of stress and gene expression will be obtained at the initial visit; a followup blood sample will be obtained later in pregnancy, and a small portion of the placenta saved at delivery. Delivery outcomes will be obtained through medical record review.
This study will implement an intervention designed to promote ethnic and racial identity development. It is hypothesized that the intervention will have positive effects on ethnic-racial identity development, stress biology (including sleep hours and quality and diurnal cortisol profiles), emotional well-being, executive functioning, and academic outcomes, particularly for minority youth.
Models of stress such as hypoglycemia have identified that stress results the next day in decreased baroreflex sensitivity. This project will test the hypothesis that these delayed changes in autonomic nervous system function are secondary to a rise in ACTH. The investigators will infuse cosyntropin versus placebo in a double-blind, crossover study in healthy adults and measure the delayed effects on the autonomic system as measured by cardiovagal baroreflex sensitivity.
The purpose of the study is to investigate health-promoting and stress-reducing psychological, physiological and hormonal effects of a 9-week meditation-based course in personal health and to examine potential baseline factors for any such effects. Thus, the investigators will investigate the course format (individual course or group-based course) as a potential factor the course outcome, and also individual background factors such as demographics and genetic variations.