Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 155 for “"HRV"”.
-
Měření HRV a posouzení vlivu zátěže
Práce se zabývá vlivem zátěže na variabilitu srdeční frekvence, popisem mechanismů, ovlivnění změn tepu, reakcí na zátěž. Je zde zpracován přehled metod, používaných pro hodnocení variability srdeční frekvence. V další části jsou zpracována získaná data a je popsána navržená metoda pomocí …
-
Heart rate variability (HRV) as a predictor of anemia in premature infants using Artemis
… blood transfusions and heart rate variability (HRV). Using Artemis, this thesis aimed to identify patterns in HRV to enable non-invasive detection of physiologically significant anemia through data visualization. This work contributes to health informatics by presenting an integrated CDSS …
-
Análisis de Modelos Digitales de Elevaciones (MDE) generados con imágenes SPOT-HRV y TERRA-ASTER
… of exploitation of data stereoscopic space-SPOT HRV and Terra-ASTER, for generating digital elevation models, MDE, using techniques automatic correspondence. To that end, we analyze the variables that influenced in the generation the MDE as: number and distribution of control points, data …
-
A Drug Discovery Study: Inhibitor Design for HRV 3C Protease Based on the Scaffold of (-)-Thysanone
… and was shown to inhibit the viral enzyme HRV 3C protease with an IC50 of 13 μg/mL (47 μM). HRV 3C protease is required for viral replication, thus inhibition of this enzyme will also inhibit the reproduction of the virus. O O O OH OH HO 7 9 (−)-thysanone This study is divided into three …
-
Evaluation of HRV as a predictor of response to a modified physical training program in ROTC cadets
… activity, indicated by heart rate variability (HRV). Variability in heart rate may be related to results on the Army Physical Fitness Test (APFT). PURPOSE: The purpose of this study was to determine if ROTC cadets’ APFT scores would improve following a novel 8-week training program, if …
-
Stress in the workplace the contrasting effects of 10 minutes of listening to Chopin vs. HRV biofeedback on autonomic reactivity and cognitive performance
Includes abstract. Includes bibliographical references.
-
Examining the effects of wearable technology and biometric coaching on heart rate variability, health related quality of life, and predictors of heart rate variability in collegiate athletes
… coaching on heart rate variability (HRV) and health-related quality of life (HRQoL). Participants: Student athletes on NCAA Division I Eastern Washington University football team. Methods: A mixed study design including randomization of participants into a wearable without coaching …
-
Do gender, anxiety sensitivity level, and timing of anxiety sensitivity assessment predict heart rate variability?
… and social. Reduced heart rate variability (HRV), or the variation in intervals between heartbeats, is associated with various psychological disorders. Current research findings disagree as to whether AS predicts HRV outcomes. The present study sought to examine data from a previous research …
-
Physiological effects of heart rate variability biofeedback during laboratory induced congnitive stress
Heart rate variability (HRV) biofeedback is effective in reducing stress as well as managing chronic disease. It facilitates easy manipulation of HRV, and, therefore, potentially provides a valuable intervention for altering the activity of the autonomic nervous system. The aim of this thesis was …
-
Quality of heart rate variability features obtained from ballistocardiograms
… can be quantified as heart rate variability (HRV). HRV has several health-related applications including long-term health monitoring and sleep quality assessment. The focus of this research is obtaining HRV from ballistocardiograms (BCGs), force signals caused by micro-movements of the human …
-
Humeral Retroversion, Range of Motion, and Strength Adaptations in Tennis Players
… an understanding of humeral retroversion (HRV) asymmetries in tennis players and its impact on physical and performance characteristics of the shoulder.<strong>Participants:</strong> Healthy tennis players were categorized into 3 groups: younger juniors (n=11, age=14.5±0.5 years), older …
-
Improving Anxiety Assessment in Autism: A Potential Use for Heart Rate Variability and Heart Rate
… anxiety, such as reduced Heart Rate Variability (HRV) and increased Heart Rate (HR), may improve anxiety assessment but more research is necessary. Specifically, it would be helpful to understand if the relationship between HRV/HR and anxiety is moderated by language abilities in children with …
-
An Exploration of Stress Reactivity and Mindfulness Meditation in Individuals with Migraine Utilizing Heart Rate Variability
… imbalance reflected in heart rate variability (HRV). Mindfulness Meditation (MM) is an evidence-based tool for regulating HRV. Previous literature has examined HRV changes in those with headache disorders after cognitive stress induction. These studies have found there were significant increases …
-
The regulation of human airway epithelial expression of viperin by human rhinovirus
Human rhinovirus (HRV) is a major trigger of exacerbations of asthma and chronic obstructive pulmonary disease (COPD). Cigarette smoke is the primary cause of COPD, and 25% of asthmatics smoke. Asthmatic subjects who smoke have more severe disease. Smokers also have more frequent and severe viral …
-
The Reproducibility of Short verses Long-Duration Heart Rate Variability Methods and Relations to Aerobic Fitness in Normal Adults
Heart rate variability (HRV) has been used to evaluate cardiac autonomic function by measuring variations in electrocardiographic R-R intervals between cardiac cycles. HRV was first used to associate decreases in autonomic nervous system (ANS) control with an increased risk of mortality in coronary …
-
Investigating the Effects of Endurance Training on Heart Rate Variability in Female Swimmer Athletes
… using measures of heart rate variability (HRV). Previous research has examined the effect of training on HRV and ANS control of heart rate in males, there is a lack of any comprehensive studies that address adaptations in female athletes. Therefore, the purpose of this study was to …
-
Heart rate variability in mice with coronary heart disease
Heart rate variability (HRV), the beat-to-beat fluctuation of the heart rate, is a non-invasive test that measures the autonomic regulation of the heart. Assessment of HRV has been shown to predict the risk of mortality in patients after an acute myocardial infarction. Recently, the Krieger lab at …
-
The effect of aerobic base training on heart-rate variability and performance in elite youth football players
… as lactate thresholds. Heart rate variability (HRV) is a monitoring tool which shows the internal impact on the body caused from training and competition. Training at high intensity causes HRV to drop due to changes in the Autonomic nervous system (ANS), meaning a drop in parasympathetic …
-
Heart rate variability and wellness monitoring in collegiate athletes
Purpose: Heart rate variability (HRV) is the measure of time between heartbeats. It reflects autonomic nervous system modulation of the cardiovascular system, and is often used to track stressors acting upon the body. In the recent past it has been applied to athletes to track the influence of …
-
Does the sum of the parts equal the whole: relationships between executive function, visual attention and heart rate variability in ROTC cadets
… nervous system and heart rate variability (HRV) (Thayer & Lane, 2000). Each of these processes has been examined separately, but none have explored the relationships among them. The current study examined visual attention, executive functioning, and HRV in undergraduate ROTC cadets. …
Page 1 of 8