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Showing 1 to 20 of 1233 for “"Heart Rate"”.
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Transfer of heart rate feedback training to reduce heart rate response to laboratory tasks
Researchers have demonstrated that individuals can successfully reduce their heart rate (HR) response to a stressor when provided with heart rate feedback. However, it is unclear whether individuals can transfer HR reduction skills to stressors not used during HR feedback training. The present …
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Improving Anxiety Assessment in Autism: A Potential Use for Heart Rate Variability and Heart Rate
… Using biomarkers of 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 …
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An Instantaneous Frequency Based Approach to Estimate Heart Rate and Calculate Heart Rate Variability Metrics
An emerging diagnostic tool for detecting heart and physiological conditions is heart rate variability (HRV). Copious research continuously discovers relationships between heart rate variability metrics and physiological functions and cardiac health. The first step in calculating HRV metrics is …
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Circadian Rhythm in Intrinsic Heart Rate
Heart rate (HR) as well as adverse cardiac events (i.e. myocardial infarction, arrhythmias, stroke, and sudden cardiac death) show circadian patterns. Circadian HR fluctuations are traditionally thought to be controlled by the autonomic nervous system (ANS). However, recent studies have concluded …
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Cognitive Factors in Heart Rate Conditioning
Made available in DSpace on 2014-12-03T23:51:09Z (GMT). No. of bitstreams: 1 6003889.pdf: 3998689 bytes, checksum: 8c00e44f28e5594c489c54ee2175310b (MD5) Previous issue date: 1960
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Electrocardiogram, heart rate and temperature monitoring system
Dissertation submitted in compliance with the requirements for Masters Degree in Technology in Electrical Engineering, Technikon Natal, Durban, South Africa, 2000.
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Investigation of heart rate variability during sleep apnea
… on the autonomic nervous system, with prominent heart rate variation. It can be assumed that during sleep, internal influences (sympathetic and parasympathetic nervous system activities) dominate the autonomic nervous system; in addition repetitive apneas are accompanied by a pronounced increase …
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Compact Doppler radar system for heart rate detection
… free space losses, noise, and fundamental heart rate detection limits. The minimum required power for close range rate detection was also assessed. Heart rates for subjects holding their breath or breathing normally were successfully tracked for signal power levels as low as 20 nW. This is …
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Heart rate as a marker of training status
… that a linear relationship exists between heart rate/ workload and oxygen consumption and that heart rate thus accurately reflects workload and exercise intensity. As such, coaches and athletes commonly use heart rate to prescribe exercise and monitor changes in training status. Some …
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Heart Rate and Neuromuscular Fatigue in Intermittent Sprinting
… workouts are based on time spent in each heart rate zone which represents cardiovascular difficulty. Despite having new adaptations for weight training, these devices do not have a way to quantify the fatigue of less aerobic, yet very strenuous workouts like sprinting. This paper …
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Quality of heart rate variability features obtained from ballistocardiograms
Heartbeat intervals (HBIs) vary over time, and that variance 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 …
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Real-Time Contactless Heart Rate Estimation from Facial Video
… information, researchers have remotely estimated heart rates from facial videos in recent years. Although progress has been made over the past few years, there are still some limitations, such as the increase in processing time with accuracy and the lack of comprehensive and challenging datasets …
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Heart rate variability in acute resistance training: monitoring recovery.
Un nivel suficiente de estímulo de entrenamiento y una adecuada recuperación tras el estrés producido por este facilita la mejora del rendimiento deportivo y la reducción de las lesiones. Sin embargo, la manipulación eficiente de la carga de entrenamiento y de los procesos de recuperación son …
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Heart Rate Variability analysis in patients undergoing local anesthesia
The analysis of Heart Rate Variability (HRV), the beat to beat fluctuation in the heart rate, is a non-invasive technique with a main aim in gaining information about the autonomic neural regulation of the heart. Assessment of HRV has been shown to aid clinical diagnosis and intervention …
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Do Canines Experience the Effects of Heart Rate Turbulence?
… validated. Thus, it is expected that the canine heart has very similar electrical model to that found in humans. In 1999, the absence of Heart Rate Turbulence (HRT) after a single Pre-Ventricular Contraction (PVC) was linked to high-risk patient after acute myocardial infarction. Studies of HRT …
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The Respiratory-Heart Rate Interaction: Quantification and Physiological Mechanisms
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1982.
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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 …
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HeartBit : mindful control of heart rate using haptic biofeedback
… in the design, implementation, and testing of HeartBit. HeartBit is a device designed for haptic heart rate biofeedback. A handheld heart beats alongside your own, mirroring the size, weight, and movement of a hidden internal organ, now external and tangible, in real-time. HeartBit offers a …
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