Results 271 to 280 of about 60,663 (311)

Comparison of HRV analysis methods during Orthostatic Challenge: HRV with respiration or without?

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2007
Heart Rate Variability (HRV) analysis has become an important tool in assessing human Autonomic Nervous System (ANS) activity in recent years. Orthostatic challenge is one of the most common tests to detect ANS dysfunction. In this study we looked at the changes in ANS activity of normal subjects to orthostatic challenge and compared the results of 3 ...
Benhur, Aysin, Joe, Colombo, Elif, Aysin
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Herzratenvariabilitäts(HRV)-Biofeedback

Ärztliche Psychotherapie, 2021
Die erlernte Kontrolle uber autonome Funktionen wie Herzratenvariabilitat mithilfe von Biofeedback kann die Selbstwirksamkeitserwartung verbessern. Bei Patienten mit psychosomatischen Storungen bewirkt die Anwendung von Biofeedback-Techniken, dass sie sich ihren Symptomen weniger ausgeliefert fuhlen.
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Effects of Walking Training with Restricted Blood Flow on HR and HRV Kinetics and HRV Recovery

International Journal of Sports Medicine, 2019
AbstractThe aim of this study was to investigate the effects of walking training with and without blood flow restriction (BFR) on heart rate (HR) and heart rate variability (HRV) kinetics and HRV recovery. Twenty-one men (53.5±3.2 years; 82.4±13.5 kg; 168.5±7.2 cm) were randomly assigned to two training groups: walk training group with (BFR-W; n=11 ...
Adalberto Ferreira, Junior, Julio Cezar, Schamne, Luiz Augusto Buoro, Perandini, Patricia, Chimin, Nilo Massaru, Okuno   +4 more
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Exercise Effects on HRV in Cancer Patients

International Journal of Sports Medicine, 2012
The present study evaluated the effects of physical exercise on heart rate variability (HRV) in cancer patients. 3 matched groups of each 15 tumour patients (60.4±8.9 years, 27 male, 18 female) were recruited: Physical exercise group 1 (acute treatment), Physical exercise group 2 (post treatment) and non-intervention group (acute treatment, no exercise)
D, Niederer, L, Vogt, C, Thiel, K, Schmidt, M, Bernhörster, A, Lungwitz, E, Jäger, W, Banzer   +7 more
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Endurance Performance and Nocturnal HRV Indices

International Journal of Sports Medicine, 2009
The effects of endurance training on endurance performance characteristics and cardiac autonomic modulation during night sleep were investigated. Twenty-four sedentary subjects trained over four weeks two hours per week at an average running intensity of 76+/-4% of their heart rate reserve.
A, Nummela, E, Hynynen, P, Kaikkonen, H, Rusko   +3 more
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Sample entropy-based HRV characterisation

International Journal of Medical Engineering and Informatics, 2012
The non-linear methods-based heart rate variability analyses are widely becoming popular as these are based upon analysing original RR-interval series. The sample entropy (SampEn) is one of these methods used for quantifying signal complexity, and is based upon hypothesis that decreasing entropy is a pointer towards loss of heart rate variability (HRV).
Ramesh Kumar Sunkaria, Vinod Kumar 0002, Suresh Chandra Saxena   +2 more
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Monitoring Driving Stress using HRV

2019 11th International Conference on Communication Systems & Networks (COMSNETS), 2019
Driving stress is responsible for bad driving behavior and fatal accidents. This stress initiates from road factors and keeps negative consequences in overall traffic management as well as in transportation system. Bangladesh has poor road infrastructure, environment and management. We explore to know the Bangladeshi drivers stress level through HRV by
Rahat Jahangir Rony, Nova Ahmed
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Improved HRV characterization using OCDWT

2009 Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2009
In this paper an over-complete discrete wavelet transform (OCDWT) algorithm, obtained by blending two wavelet transform implementations that is redundant wavelet transform and the Mallat's multiresolution decomposition, has been proposed to retrieve the time-varying characteristics of HRV under two different postures, supine and standing.
B S, Saini, Dilbag, Singh, Vinod, Kumar, K K, Deepak, Jagroop, Singh   +4 more
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Analysis of HRV signal for disease diagnosis

2016 11th International Conference on Industrial and Information Systems (ICIIS), 2016
This paper gives a brief comparison between some arrhythmias affected ECG signals with a normal sample of ECG recording. The comparison is based on the Heart Rate Variability (HRV) analysis. The HRV signal is generated from the ECG signal after detecting R-Peaks.
Desh Deepak Gautam, V. K. Giri
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The HRV Analysis on e-Book Reading

2015
In this study, the effects of four indoor illuminations on e-book readers are investigated by HRV analysis. Two main types of commercial light bulbs are adopted, the saving energy and LED ones. They are all categorized as high color temperature and low color temperature.
Chien-Sheng Huang, Ching-Huang Lin, Chien-Yue Chen, Shao-Ciang Gan, Guan-Syuan Hong   +4 more
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