Journal articles on the topic 'Heart beat Psychological aspects'
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Gudi, Amogh, Marian Bittner, and Jan van Gemert. "Real-Time Webcam Heart-Rate and Variability Estimation with Clean Ground Truth for Evaluation." Applied Sciences 10, no. 23 (December 2, 2020): 8630. http://dx.doi.org/10.3390/app10238630.
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Remote photo-plethysmography (rPPG) uses a camera to estimate a person’s heart rate (HR). Similar to how heart rate can provide useful information about a person’s vital signs, insights about the underlying physio/psychological conditions can be obtained from heart rate variability (HRV). HRV is a measure of the fine fluctuations in the intervals between heart beats. However, this measure requires temporally locating heart beats with a high degree of precision. We introduce a refined and efficient real-time rPPG pipeline with novel filtering and motion suppression that not only estimates heart rates, but also extracts the pulse waveform to time heart beats and measure heart rate variability. This unsupervised method requires no rPPG specific training and is able to operate in real-time. We also introduce a new multi-modal video dataset, VicarPPG 2, specifically designed to evaluate rPPG algorithms on HR and HRV estimation. We validate and study our method under various conditions on a comprehensive range of public and self-recorded datasets, showing state-of-the-art results and providing useful insights into some unique aspects. Lastly, we make available CleanerPPG, a collection of human-verified ground truth peak/heart-beat annotations for existing rPPG datasets. These verified annotations should make future evaluations and benchmarking of rPPG algorithms more accurate, standardized and fair.
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Zar, Sirajuddin. "RELEVANSI TASAWUF DI ERA MODERN." Mumtaz: Jurnal Studi Al-Qur'an dan Keislaman 2, no. 1 (October 21, 2019): 121–32. http://dx.doi.org/10.36671/mumtaz.v2i1.22.
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Islam is not just a legalistic-formalistic side, but it also has an esoteric dimension. Sufism is an important element in Islam which is more focused on the esoteric aspects of Islam. This inward aspect of Islam is more influenced by feelings (zauq) and is personal and in re-vealing its teachings often uses figurative words (matsal) and symbols (ramz). The aim of the Sufi is toget as close as possible to God, so that he can see God with the eyes of the heart, even his spirit can be united with the spirit of God. Islamic mysticism does not deny science, even Islamic mysticism contributes a lot of ideas in the fields of philosophy, literature, music, dance, psychology, and modern science. The problem of alienation is a psychological problem. Humans play a role as the cause of the emergence of alienation and at the same time as a victim who must bear the consequences. In the context of Islamic teachings, to overcome the alienation of the human soul and free from the pain of alienation, it must instead make God the ultimate goal, the Supreme Being and the Absolute. All relative and relative existence is meaning-less before the existence of the absolute.
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Grossmann, Siegfried, and Sabine Ranft. "Dynamic Modelling of Heart Beat." Zeitschrift für Naturforschung A 50, no. 10 (October 1, 1995): 915–20. http://dx.doi.org/10.1515/zna-1995-1002.
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Abstract Two recently introduced methods to analyze heart beat are checked by applying them to numerically produced time series representing artificial heart beat. The phase space diagram method (G. E. Morfill, G. Schmidt) depends on the variability of the sinus rhythm and the coupling interval of the extrasystoles. The risk index method (J. Kurths et al.) seems to measure different aspects of heart beat.
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Gardner, Freda V., and G. D. Angelini. "Psychological aspects of congenital heart disease." Cardiology in the Young 5, no. 4 (October 1995): 302–9. http://dx.doi.org/10.1017/s1047951100002754.
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AbstractOutcome following the treatment of congenital heart disease continues to improve and interest has focused on reducing morbidity as well as mortality. One important aspect of this is the psychological effect of congenital heart disease and its treatment on both children and their parents. This review addresses the extent and nature of the psychological morbidity associated with this disease, in particular the impact of the diagnosis on the management of patient and family. The etiology of the high level of psychosocial morbidity remains poorly understood. Data from the 1960s concerned with pre-school and school-age children is now of little value given the dramatic changes in the treatment of congenital heart disease, which is now predominantly in the neonatal period. While theory from developmental and pediatric psychology may be usefully applied to this area, further research is required to define effective psychological care for patients and their families.
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Sloan, R. P., R. E. Demeersman, P. A. Shapiro, E. Bagiella, J. P. Kuhl, A. S. Zion, M. Paik, and M. M. Myers. "Cardiac autonomic control is inversely related to blood pressure variability responses to psychological challenge." American Journal of Physiology-Heart and Circulatory Physiology 272, no. 5 (May 1, 1997): H2227—H2232. http://dx.doi.org/10.1152/ajpheart.1997.272.5.h2227.
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Blood pressure exhibits variability (BPV) at low (0.02- to 0.07-Hz), mid (0.07- to 0.15-Hz)-, and high (0.15- to 0.50-Hz) frequencies. Evidence suggests that BPV responses to challenge are inversely related to cardiac autonomic control. We tested this hypothesis by examining the BPV responses to psychological stressors in 22 normal subjects who differed in cardiac control, operationalized as resting heart period variability (HPV). HPV and BPV were measured noninvasively or a beat-to-beat basis. The stressors produced a significant increase in heart rate and a small but significant increase in diastolic blood pressure. As predicted, the changes in BPV in response to the stressors were inversely related to resting HPV. The results are interpreted in terms of a model of cardiovascular control that holds that BPV originates from feedforward effects of central control of the heart, feedback effects mediated through the baroreflexes, and direct sympathetic vascular effects.
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Lampe, Kathie E. "HEART TO HEART: A GUIDE TO THE PSYCHOLOGICAL ASPECTS OF HEART DISEASE." Cardiopulmonary Physical Therapy Journal 9, no. 3 (1998): 20. http://dx.doi.org/10.1097/01823246-199809030-00006.
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Kalb, Elizabeth. "HEART TO HEART: A GUIDE TO THE PSYCHOLOGICAL ASPECTS OF HEART DISEASE." Chest 105, no. 4 (April 1994): 20. http://dx.doi.org/10.1016/s0012-3692(16)57630-2.
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Lazzeroni, Davide, Chiara Ciraci, Marinella Sommaruga, Carlotta Oggioni, Melissa Saccò, Valentina Ziveri, Letizia Paglialonga, et al. "Perceived Anxiety, Coping, and Autonomic Function in Takotsubo Syndrome Long after the Acute Event." Life 12, no. 9 (September 3, 2022): 1376. http://dx.doi.org/10.3390/life12091376.
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Background: Anxiety and depressive disorders represent predisposing factors for the autonomic dysfunctions that characterize the acute phase of Takotsubo syndrome (TS). However, there is insufficient data on this relationship after the acute event. The present study aimed at evaluating the psychological and autonomic status of patients with a history of TS. Methods: Ten TS patients whose acute event occurred at least 1 year prior to the evaluation and nine healthy age- and sex-matched subjects were evaluated. The cardiovascular assessment included a clinical examination, beat-to-beat heart rate monitoring to assess heart rate variability, and a psychological examination using the 16 Personality Factors-C Form (16PF), the Acceptance and Action Questionnaire-II, the Coping Orientations to Problems Experienced (COPE), the Beck Depression Inventory-II, and the State-Trait Anxiety Inventory (STAI). Results: TS patients scored significantly higher on the STAI (i.e., Anxiety Trait), 16PF (i.e., Tension), and COPE (i.e., Transcendental Orientation). TS patients also showed lower heart rate variability. Moreover, a significant inverse correlation was found between sympathetic tone (LF/HF ratio) and coping orientation. Conclusions: Long after the acute event, TS patients are characterized by elevated anxiety, high tension, and a specific religious coping strategy.
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Esbaugh, A. J., M. Hazel, and D. P. Toews. "Aspects of lymph-heart function in Rana catesbeiana." Canadian Journal of Zoology 80, no. 12 (December 1, 2002): 2125–30. http://dx.doi.org/10.1139/z02-210.
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The effect of voluntary dives on the posterior lymph heart rate of the bullfrog, Rana catesbeiana, was tested and compared with the blood-heart rate (n = 6). This was performed by cannulating the posterior lymph heart and femoral artery simultaneously. Blood-heart rates during submergence were significantly lower (α = 0.05) then pre-submergence rates at all sampling times. In contrast, the lymph hearts showed significantly lower rates only during the first and last submergence intervals. It is believed that the lymph-heart bradycardia found during these intervals is due in part to the physiological "preparations" for diving by the frog. Further information regarding posterior lymph heart contractions was gained by cannulating two posterior lymph hearts on one side of the frog (n = 5). It was found that these hearts beat within 100 ms of each other between 66 and 97% of the time (α = 0.05). The combined contraction of the three posterior lymph hearts could facilitate the movement of lymph through the outflow valve and into the venous circulation. This study represents the first time the axial coordination of homolateral lymph hearts has been shown to extend to the multiple posterior lymph hearts.
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Lu, Pengfei, Mladen Veletić, Jacob Bergsland, and Ilangko Balasingham. "Theoretical Aspects of Resting-State Cardiomyocyte Communication for Multi-Nodal Nano-Actuator Pacemakers." Sensors 20, no. 10 (May 14, 2020): 2792. http://dx.doi.org/10.3390/s20102792.
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The heart consists of billions of cardiac muscle cells—cardiomyocytes—that work in a coordinated fashion to supply oxygen and nutrients to the body. Inter-connected specialized cardiomyocytes form signaling channels through which the electrical signals are propagated throughout the heart, controlling the heart’s beat to beat function of the other cardiac cells. In this paper, we study to what extent it is possible to use ordinary cardiomyocytes as communication channels between components of a recently proposed multi-nodal leadless pacemaker, to transmit data encoded in subthreshold membrane potentials. We analyze signal propagation in the cardiac infrastructure considering noise in the communication channel by performing numerical simulations based on the Luo-Rudy computational model. The Luo-Rudy model is an action potential model but describes the potential changes with time including membrane potential and action potential stages, separated by the thresholding mechanism. Demonstrating system performance, we show that cardiomyocytes can be used to establish an artificial communication system where data are reliably transmitted between 10 s of cells. The proposed subthreshold cardiac communication lays the foundation for a new intra-cardiac communication technique.
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Cysarz, D., H. Bettermann, and P. van Leeuwen. "Entropies of short binary sequences in heart period dynamics." American Journal of Physiology-Heart and Circulatory Physiology 278, no. 6 (June 1, 2000): H2163—H2172. http://dx.doi.org/10.1152/ajpheart.2000.278.6.h2163.
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Dynamic aspects of R-R intervals have often been analyzed by means of linear and nonlinear measures. The goal of this study was to analyze binary sequences, in which only the dynamic information is retained, by means of two different aspects of regularity. R-R interval sequences derived from 24-h electrocardiogram (ECG) recordings of 118 healthy subjects were converted to symbolic binary sequences that coded the beat-to-beat increase or decrease in the R-R interval. Shannon entropy was used to quantify the occurrence of short binary patterns (length N = 5) in binary sequences derived from 10-min intervals. The regularity of the short binary patterns was analyzed on the basis of approximate entropy (ApEn). ApEn had a linear dependence on mean R-R interval length, with increasing irregularity occurring at longer R-R interval length. Shannon entropy of the same sequences showed that the increase in irregularity is accompanied by a decrease in occurrence of some patterns. Taken together, these data indicate that irregular binary patterns are more probable when the mean R-R interval increases. The use of surrogate data confirmed a nonlinear component in the binary sequence. Analysis of two consecutive 24-h ECG recordings for each subject demonstrated good intraindividual reproducibility of the results. In conclusion, quantification of binary sequences derived from ECG recordings reveals properties that cannot be found using the full information of R-R interval sequences.
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Sloan, R. P., R. E. DeMeersman, P. A. Shapiro, E. Bagiella, D. Chernikhova, J. P. Kuhl, A. S. Zion, M. Paik, and M. M. Myers. "Blood pressure variability responses to tilt are buffered by cardiac autonomic control." American Journal of Physiology-Heart and Circulatory Physiology 273, no. 3 (September 1, 1997): H1427—H1431. http://dx.doi.org/10.1152/ajpheart.1997.273.3.h1427.
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Variability in blood pressure (BPV) is influenced by vascular sympathetic drive as well as autonomic control of the heart. Evidence suggests that elimination of cardiac autonomic control, as measured by heart period variability (HPV), produces a reduction in BPV at rest but an increase in BPV during challenge. We recently showed that the BPV response to psychological challenge, which principally produces cardiac parasympathetic withdrawal, was inversely related to the subject's level of cardiac control. In the current study we examined the BPV response to orthostatic tilt, a sympathetic stressor. Subjects were 22 healthy men and women who differed in cardiac control due in part to differences in aerobic capacity. HPV and BPV were measured noninvasively on a beat-to-beat basis. Tilt produced significant increases in heart rate and diastolic blood pressure and a significant decrease in high frequency HPV. As predicted, changes in BPV in response to tilt were inversely related to resting HPV. Results are interpreted in terms of a model of cardiovascular control which holds that BPV originates from feedforward effects of central control of the heart, feedback effects mediated through the baroreflexes, and direct sympathetic vascular effects.
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Zaheer, Zahir Shah. "Psychological aspects of Pashto Landay." Integrated Journal for Research in Arts and Humanities 3, no. 1 (January 21, 2023): 57–61. http://dx.doi.org/10.55544/ijrah.3.1.11.
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Pashto landay is a great and delicious asset of folk literature that has not only gained fame and importance in the Pashtoon community, but is now emerging day by day as a good and beautiful poem in the field of international literature. Pashto landay of Pashto oral literature is a short and meaningful poem that is free from rhyme, but in terms of weight it is equal to the fifth long syllable of free poetry. The stress comes on the fourth syllable of each column. The first hemistich is nine syllables and the second one is thirteen syllables and ends with an independent sound. In this brief article it hasn’t discussed on the framework of landay, but the content of landay which are the voice of the heart of the Pashtoon people are analyzed from the perspective of psychology. Pashtoons who have suffered many hardships throughout their lives have been deprived of the lawful pleasures of life due to the influence of their imposed culture and all their deprivations have been pushed from the conscious to the unconscious. As a result, they have told their deprivation in landay as a poem and made themselves happy and encouraged. These problems and deprivations are different and discussing them all is beyond the scope of an article. In order to attract the attention of researchers to this topic in the future, some obvious aspects related to human psychology have been discussed.
MOTIVE OF ESSAY WRITING
The poem is discussed from two aspects one is the form and the other is the content. In Pashto literature there have been many discussions about poetry framework in general, but its content has not been discussed as much as it should be. In today's modern literature the psychological aspect is relatively new and important, so this aspect is stronger than others in Pashto literature, because the Pashtoon are more oppressed than any other people, so this was the reason why I wrote this article. It has come so that readers of other languages will be informed about the deprivations of Pashtoons' lives by reading this article.
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Gjoreski, Martin, Tine Kolenik, Timotej Knez, Mitja Luštrek, Matjaž Gams, Hristijan Gjoreski, and Veljko Pejović. "Datasets for Cognitive Load Inference Using Wearable Sensors and Psychological Traits." Applied Sciences 10, no. 11 (May 31, 2020): 3843. http://dx.doi.org/10.3390/app10113843.
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This study introduces two datasets for multimodal research on cognitive load inference and personality traits. Different to other datasets in Affective Computing, which disregard participants’ personality traits or focus only on emotions, stress, or cognitive load from one specific task, the participants in our experiments performed seven different tasks in total. In the first dataset, 23 participants played a varying difficulty (easy, medium, and hard) game on a smartphone. In the second dataset, 23 participants performed six psychological tasks on a PC, again with varying difficulty. In both experiments, the participants filled personality trait questionnaires and marked their perceived cognitive load using NASA-TLX after each task. Additionally, the participants’ physiological response was recorded using a wrist device measuring heart rate, beat-to-beat intervals, galvanic skin response, skin temperature, and three-axis acceleration. The datasets allow multimodal study of physiological responses of individuals in relation to their personality and cognitive load. Various analyses of relationships between personality traits, subjective cognitive load (i.e., NASA-TLX), and objective cognitive load (i.e., task difficulty) are presented. Additionally, baseline machine learning models for recognizing task difficulty are presented, including a multitask learning (MTL) neural network that outperforms single-task neural network by simultaneously learning from the two datasets. The datasets are publicly available to advance the field of cognitive load inference using commercially available devices.
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Davila, Maria I., Paul N. Kizakevich, Randy Eckhoff, Jessica Morgan, Sreelatha Meleth, Derek Ramirez, Tim Morgan, et al. "Use of Mobile Technology Paired with Heart Rate Monitor to Remotely Quantify Behavioral Health Markers among Military Reservists and First Responders." Military Medicine 186, Supplement_1 (January 1, 2021): 17–24. http://dx.doi.org/10.1093/milmed/usaa395.
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ABSTRACT Introduction Heart rate variability (HRV) is a biological marker that reflects an individual’s autonomic nervous system regulation. Psychological resilience is an individual’s ability to recover from an adverse event and return to physiological homeostasis and mental well-being, indicated by higher resting HRV. The Biofeedback Assisted Resilience Training (BART) study evaluates a resilience-building intervention, with or without HRV biofeedback. This article evaluates the feasibility of remote psychophysiological research by validating the HRV data collected. Materials and Methods The BART platform consists of a mobile health application (BART app) paired to a wearable heart rate monitor. The BART app is installed on the participant’s personal phone/tablet to track and collect self-report psychological and physiological data. The platform collects raw heart rate data and processes HRV to server as online biofeedback. The raw data is processed offline to derive HRV for statistical analysis. The following HRV parameters are validated: inter-beat interval, respiratory sinus arrhythmia, low-frequency HRV, biofeedback HRV, and heart period. Bland–Altman and scatter plots are used to compare and contrast online and offline HRV measures. Repeated-measures ANOVA are used to compared means across tasks during the stress (rest, stress, and recovery) and training (rest and paced breathing) sessions in order to validate autonomic nervous system changes to physiological challenges. Results The analyses included 245 participants. Bland–Altman plots showed excellent agreement and minimal bias between online and offline unedited inter-beat interval data during the stress session. RMANOVA during the training session indicated a significant strong effect on biofeedback HRV, F(11,390) = 967.96, P < .01. During the stress session, RMANOVA showed significant strong effect on respiratory sinus arrhythmia and low-frequency HRV, and a significant but weak effect on heart period. Conclusions The BART digital health platform supports remote behavioral and physiological data collection, intervention delivery, and online HRV biofeedback.
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Yuan, Yongjie, Yongjun Zhang, Junyuan Wang, and Ping Fang. "Classification of Electrocardiogram of Congenital Heart Disease Patients by Neural Network Algorithms." Scientific Programming 2021 (August 31, 2021): 1–8. http://dx.doi.org/10.1155/2021/3801675.
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The study intended to explore the effect of different neural network algorithms in the electrocardiogram (ECG) classification of patients with congenital heart disease (CHD). Based on the single convolutional neural network (CNN) ECG algorithm and the recurrent neural network (RNN) ECG algorithm, a multimodal neural network (MNN) ECG algorithm was constructed utilizing the MIT-BIH database as training set and test set. Furthermore, the MNN ECG algorithm was optimized to establish an improved MNN (IMNN) algorithm, which was applied to the diagnosis of CHD patients. The CHD patients admitted between August 2016 and August 2019 were selected for analysis to compare the classification effect and accuracy rate of IMNN, MNN, CNN ECG, and RNN ECG algorithms. It was found that the RNN ECG algorithm had higher classification sensitivity and true positive rate in terms of normal or bundle (NB) branch block beat, supraventricular abnormal (SA) rhythm, abnormal ventricular (AV) beat, and fusion beat (FB) than the CNN ECG algorithm ( P < 0.05 ), and the classification sensitivity and true positive rate of IMNN algorithm in the four aspects were significantly higher than those of MNN algorithm ( P < 0.05 ). The classification accuracy of CNN ECG algorithm and RNN ECG algorithm was above 98%, while that of MNN algorithm and IMNN algorithm was better than that of CNN ECG algorithm and RNN ECG algorithm, and the accuracy rate can reach 98.5% or more. Moreover, the accuracy rate of the IMNN algorithm can reach more than 98%. In conclusion, IMNN not only has a good classification ability in the simulated environment but also performs well in the actual environment, which is worthy of clinical promotion.
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Arunamanjusha, K., T. Kalyani, B. Naresh, and N. Nagaraju. "Analyzing The Stress Levels of A Patient Using Heart Beat and Pulse Rate Sensor by Arduino Interface with CRO." International Journal of Engineering & Technology 7, no. 3.27 (August 15, 2018): 15. http://dx.doi.org/10.14419/ijet.v7i3.27.17643.
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With the advancements in medical field, it is easy to treat numerous diseases and study various micro organisms and produce life saving drugs that did not exist few decades back. However, we do not have enough apparatus that is simple and user-friendly to analyze or make assessments to determine the psychological conditions of a patient. The treatment given to the patient is affected by the person’s psychological state of mind in terms of stress or emotional levels. A person’s stress levels are basically determined by the emotional response and in turn the electrical impulses generated through the exchange of sodium and potassium ions at the cell wall of the human body which is generally maintained at -70mV. The electrical impulses can be captured at the heart or brain or both in order to analyze the state of the patients receiving any particular treatment. In this paper the register pulse rate using heart beat sensor and graph it at certain intervals of time. The slope joining the peaks of consecutive readings indicates the increase /decrease of the patients stress and responsiveness to the treatment
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Molen, Yara Fleury, Luciane Bizari Coin Carvalho, Lucila Bizari Fernandes do Prado, and Gilmar Fernandes do Prado. "Insomnia: psychological and neurobiological aspects and non-pharmacological treatments." Arquivos de Neuro-Psiquiatria 72, no. 1 (January 2014): 63–71. http://dx.doi.org/10.1590/0004-282x20130184.
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Insomnia involves difficulty in falling asleep, maintaining sleep or having refreshing sleep. This review gathers the existing informations seeking to explain insomnia, including those that focus on psychological aspects and those considered neurobiological. Insomnia has been defined in psychological (cognitive components, such as worries and rumination, and behavioral aspects, such as classic conditioning) and physiological terms (increased metabolic rate, with increased muscle tone, heart rate and temperature). From the neurobiological point of view, there are two perspectives: one which proposes that insomnia occurs in association with a failure to inhibit wakefulness and another that considers hyperarousal as having an important role in the physiology of sleep. The non-pharmacological interventions developed to face different aspects of insomnia are presented.
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Sagl, Günther, Bernd Resch, Andreas Petutschnig, Kalliopi Kyriakou, Michael Liedlgruber, and Frank H. Wilhelm. "Wearables and the Quantified Self: Systematic Benchmarking of Physiological Sensors." Sensors 19, no. 20 (October 14, 2019): 4448. http://dx.doi.org/10.3390/s19204448.
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Wearable sensors are increasingly used in research, as well as for personal and private purposes. A variety of scientific studies are based on physiological measurements from such rather low-cost wearables. That said, how accurate are such measurements compared to measurements from well-calibrated, high-quality laboratory equipment used in psychological and medical research? The answer to this question, undoubtedly impacts the reliability of a study’s results. In this paper, we demonstrate an approach to quantify the accuracy of low-cost wearables in comparison to high-quality laboratory sensors. We therefore developed a benchmark framework for physiological sensors that covers the entire workflow from sensor data acquisition to the computation and interpretation of diverse correlation and similarity metrics. We evaluated this framework based on a study with 18 participants. Each participant was equipped with one high-quality laboratory sensor and two wearables. These three sensors simultaneously measured the physiological parameters such as heart rate and galvanic skin response, while the participant was cycling on an ergometer following a predefined routine. The results of our benchmarking show that cardiovascular parameters (heart rate, inter-beat interval, heart rate variability) yield very high correlations and similarities. Measurement of galvanic skin response, which is a more delicate undertaking, resulted in lower, but still reasonable correlations and similarities. We conclude that the benchmarked wearables provide physiological measurements such as heart rate and inter-beat interval with an accuracy close to that of the professional high-end sensor, but the accuracy varies more for other parameters, such as galvanic skin response.
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ZANNOLI, ROMANO, IVAN CORAZZA, ANGELO BRANZI, and PIER LUCA ROSSI. "AORTOVENTRICULAR MECHANICAL MATCHING: SIMULATION OF NORMAL AND PATHOLOGICAL CONDITIONS." Journal of Mechanics in Medicine and Biology 08, no. 01 (March 2008): 109–20. http://dx.doi.org/10.1142/s0219519408002498.
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A mechanical mock of the cardiovascular system was used to simulate different conditions of ventricular-arterial mechanical matching. Four ventricles and four aortas with different elastances were set up, and all possible connection combinations tested by sampling ventricular and aortic pressures and flows. The mechanical energy produced by the simulated ventricles and the amount transferred to the aorta in the different connection conditions were calculated. The results demonstrate a clear dependence between the mechanical work production of the ventricles and the ventricular elastance (slope of the end-systolic pressure–volume relation) (from 20.42 ± 0.02 mJ/beat to 12.10 ± 0.02 mJ/beat), and an efficiency of energy transfer to the aorta strongly dependent on ventricular-aortic mechanical matching (from 56% to 20.7%). These results show that, even in optimal simulated conditions, only 56% of the energy produced is transferred to the load; and highlight the important role of mechanical aspects in conditions of very limited cardiovascular performance (i.e. final stages of heart failure), where energy transfer efficiency may be as low as 20.7%. This evidence emphasizes that the mechanical aspects must also be entertained in the evolution of complex cardiovascular pathologies, evaluating the possibility of combining mechanical and pharmaceutical interventions.
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Deschodt-Arsac, Veronique, Estelle Blons, Pierre Gilfriche, Beatrice Spiluttini, and Laurent M. Arsac. "Entropy in Heart Rate Dynamics Reflects How HRV-Biofeedback Training Improves Neurovisceral Complexity during Stress-Cognition Interactions." Entropy 22, no. 3 (March 11, 2020): 317. http://dx.doi.org/10.3390/e22030317.
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Despite considerable appeal, the growing appreciation of biosignals complexity reflects that system complexity needs additional support. A dynamically coordinated network of neurovisceral integration has been described that links prefrontal-subcortical inhibitory circuits to vagally-mediated heart rate variability. Chronic stress is known to alter network interactions by impairing amygdala functional connectivity. HRV-biofeedback training can counteract stress defects. We hypothesized the great value of an entropy-based approach of beat-to-beat biosignals to illustrate how HRVB training restores neurovisceral complexity, which should be reflected in signal complexity. In thirteen moderately-stressed participants, we obtained vagal tone markers and psychological indexes (state anxiety, cognitive workload, and Perceived Stress Scale) before and after five-weeks of daily HRVB training, at rest and during stressful cognitive tasking. Refined Composite Multiscale Entropy (RCMSE) was computed over short time scales as a marker of signal complexity. Heightened vagal tone at rest and during stressful tasking illustrates training benefits in the brain-to-heart circuitry. The entropy index reached the highest significance levels in both variance and ROC curves analyses. Restored vagal activity at rest correlated with gain in entropy. We conclude that HRVB training is efficient in restoring healthy neurovisceral complexity and stress defense, which is reflected in HRV signal complexity. The very mechanisms that are involved in system complexity remain to be elucidated, despite abundant literature existing on the role played by amygdala in brain interconnections.
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Baysultanova, M. B., A. A. Elgarov, L. V. Betuganova, M. A. Elgarov, and M. A. Kalmykova. "Medical psychological and social rehabilitation in patient with myocardial infarction." CardioSomatics 6, no. 1 (March 15, 2015): 12–15. http://dx.doi.org/10.26442/cs45112.
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Complex therapy effectiveness in patients with myocardial infarction and chronic heart failure is established; authors monitoring positive influence on medical psychological and social aspects of rehabilitation in post infarction patients is shown, using as monitoring core individual and complex medical psychological educational program.
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Rossi, Alessio, Eleonora Da Pozzo, Dario Menicagli, Chiara Tremolanti, Corrado Priami, Alina Sîrbu, David A. Clifton, Claudia Martini, and Davide Morelli. "A Public Dataset of 24-h Multi-Levels Psycho-Physiological Responses in Young Healthy Adults." Data 5, no. 4 (September 25, 2020): 91. http://dx.doi.org/10.3390/data5040091.
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Wearable devices now make it possible to record large quantities of physiological data, which can be used to obtain a clearer view of a person’s health status and behavior. However, to the best of our knowledge, there are no open datasets in the literature that provide psycho-physiological data. The Multilevel Monitoring of Activity and Sleep in Healthy people (MMASH) dataset presented in this paper provides 24 h of continuous psycho-physiological data, that is, inter-beat intervals data, heart rate data, wrist accelerometry data, sleep quality index, physical activity (i.e., number of steps per second), psychological characteristics (e.g., anxiety status, stressful events, and emotion declaration), and sleep hormone levels for 22 participants. The MMASH dataset will enable the investigation of possible relationships between the physical and psychological characteristics of people in daily life. Data were validated through different analyses that showed their compatibility with the literature.
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TULEN, J. H. M., F. BOOMSMA, and A. J. MAN IN ′TVELD. "Cardiovascular control and plasma catecholamines during rest and mental stress: effects of posture." Clinical Science 96, no. 6 (May 4, 1999): 567–76. http://dx.doi.org/10.1042/cs0960567.
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In order to understand the complex autonomic adjustments that occur during the psychological challenges of normal daily life, autonomic responses to psychological stress were studied by evaluating the effects of body posture on various indices of sympathetic and parasympathetic regulation during performance of a psychological task. Twelve male subjects were studied in various postures (supine, sitting and standing), and during performance of the Colour Word Test (CWT) when sitting and then when standing. This procedure was subsequently repeated in reverse order (first standing and then sitting) after 15 min of supine rest. Blood samples for assay of plasma catecholamines were obtained before and during each CWT. Spectral analysis of beat-to-beat variations of heart rate (HR) and blood pressure (BP) was applied in order to obtain non-invasive indices of sympathetic and parasympathetic regulation. HR, diastolic BP, mid-frequency band power (0.07-0.14 Hz) of HR and systolic BP, and plasma adrenaline and noradrenaline concentrations showed significant increases when changing from supine to sitting to standing posture, whereas high-frequency band power (0.15-0.50 Hz) of HR decreased in a posture-dependent fashion. In the sitting position, the CWT caused significant increases in HR, BP and plasma adrenaline levels, and decreased HR and BP variability indices. In the standing posture, the CWT responses differed significantly from those during sitting for HR (a mild decrease during standing), high-frequency band power of HR (decreased more while sitting), high-frequency band power of BP (decreased more while standing), and plasma adrenaline responses (larger during sitting). Posture-related differential effects were observed on indices of sympatho-adrenomedullary activation during performance of a psychological challenge, whereas indices of parasympathetic activity indicated primarily less vagolytic effects when the task was performed in the standing posture. Our findings therefore underline the complexity of the adjustments that occur in neurohumoral and haemodynamic parameters during the psychological challenges of daily life.
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Siennicka, Agnieszka, Anna Stromberg, Waldemar Banasiak, Piotr Ponikowski, and Ewa Anita Jankowska. "Review article Psychological aspects of heart failure – beyond depression, anxiety and quality of life." Health Psychology Report 2 (2015): 99–114. http://dx.doi.org/10.5114/hpr.2015.49938.
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Leeming, Amy, Scott A. Murray, and Marilyn Kendall. "The impact of advanced heart failure on social, psychological and existential aspects and personhood." European Journal of Cardiovascular Nursing 13, no. 2 (January 23, 2014): 162–67. http://dx.doi.org/10.1177/1474515114520771.
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Houser, Rick, Varda Konstam, and Marvin Konstam. "Transplantations: Implications of the Heart Transplantation Process for Rehabilitation Counselors." Journal of Applied Rehabilitation Counseling 23, no. 1 (March 1, 1992): 38–43. http://dx.doi.org/10.1891/0047-2220.23.1.38.
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There have been remarkable medical advances over the past two decades and these advances have impacted upon the rehabilitation counselor's approach to working with people with disabilities. One area in which impressive and exciting advances have occurred has been in organ transplantation, including heart transplantation. Rehabilitation counselors can play an effective role in the rehabilitation of those who have gone through the heart transplantation process. Having knowledge of the medical, psychological and vocational implications of heart transplantation, rehabilitation professionals can facilitate return to work through the rehabilitation process. In this article the medical aspects of the heart transplant; complications; functional limitations; psychological implications; and vocational implications are discussed.
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Hardacre, Helen. "Response of Buddhism and Shintō to the Issue of Brain Death and Organ Transplant." Cambridge Quarterly of Healthcare Ethics 3, no. 4 (1994): 585–601. http://dx.doi.org/10.1017/s0963180100005478.
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Japan has no law recognizing the condition of brain death as the standard for determining that an individual has died. Instead, it is customary medical practice to declare a person dead when three conditions have been met: cessation of heart beat, cessation of respiration, and opening of the pupils. Of the developed nations, only Japan and Israel do not recognize brain death as the death of the human person.
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Tretiak, T. O., O. V. Severynovska, and M. Boyko. "Connection of students’ academic performance and cognitive abilities with their psychological characteristics." Visnyk of Dnipropetrovsk University. Biology, medicine 7, no. 1 (February 19, 2016): 18–26. http://dx.doi.org/10.15421/021604.
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The contents of education must correspond not only to the level of knowledge and competencies, but also be directed to self-determination of the personality and creation of conditions for its self-development and self-realization. The aim of this study was to identify the psycho-physiological peculiarities of Biology students and to establish the connection between the students’ academic performance, their cognitive abilities and their psycho-physiological characteristics, which is essential for improving the academic process and bringing it to the high level of professional education necessary for graduates of higher educational establishments to compete successfully in the job market. It was established that the majority (46%) of Biology students are ambiverts, 34% of them are extroverts, and 18% – introverts. There is a statistically reliable connection between the academic grades and the personality type: the more successful students are ambiverts and introverts. Extroverts demonstrate lower academic results. According to different types of asymmetry manifestation among Biology students, the right-handed accounted for 35% of the tested, those with prevailing right hand – 51%, those with prevailing left hand – 1.2% and the left-handed – 12%. There is no dependence of academic performance on the asymmetry manifestation. Most Biology students have a sanguine-choleric temperament and slightly expressed or absent asymmetry, which testifies to the power of nervous processes and is a precondition for successful studying. The majority of students, irrespective of the academic performance level, have a low level of stress resistance and a medium level of personality anxiety. Students who score A and B points for academic performance, have a medium level of situational anxiety. Those who score C points have a high level of anxiety. There is no connection between the academic points and personality anxiety level, but there is significant connection between academic performance and situational anxiety. There has been established a significant dependence of academic performance on the level of situational anxiety: introverts and extroverts have a high level, ambiverts have a medium level of situational anxiety. Introverts and ambiverts with a low and medium anxiety level demonstrate higher academic performance. Extroverts with a high anxiety level find it more difficult to study. The majority of Biology students have a high level of visual-imaginative, object-active and creative thinking types. 83% of students have a high and a medium level of verbal-logical thinking type. Abstract-symbolic and intuitive thinking are developed in lesser degree. There has been established a reliable negative correlative connection between object-active thinking type and introversion, and a positive connection between intuitive thinking and introversion, irrespective of academic results. The more introversion is expressed, the more intuition is developed. Academically successful students demonstrated a positive correlation between the abstract-symbolic thinking type and introversion. Extroverts with low academic performance don’t have significant correlation connections with the thinking types, whereas it is characteristic for academically successful students to demonstrate a higher level of visual-imaginative, verbal-logical, abstract-symbolic and creative thinking along with an increase in demonstrating extroversion. Practically all thinking types (except for the object-active) are more fully expressed in successful ambiverts; the manifestation of a certain thinking type increases while ambiversion increases. Less academically successful students have a reliable correlative connection between ambiversion and visual-imaginative, abstract-symbolic and creative thinking. Performance of tasks connected with all thinking types irrespective of typological characteristics of students was accompanied by a reliable increase in saturation. More diversified reactions in the process of thinking activity were observed in the cardio-vascular system: introverts and ambiverts who demonstrated high results in the tests, showed significant decrease of heart beat rate in the process of intuitive and visual-imaginative thinking. Extroverts who demonstrated low results in the tests, by contrast, showed an increase in heart beat rate. When students of all typological groups were doing tasks connected with verbal-logical thinking, their heart beat rate significantly increased. Ambiverts and introverts were more successful. Thus, the whole range of psychological and physiological characteristics of a person defines his successful academic performance and real activity.
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Ormerod, Neil, and Christiaan Jacobs-Vandegeer. "Sacred Heart, Beatific Mind: Exploring the Consciousness of Jesus." Theological Studies 79, no. 4 (November 30, 2018): 729–44. http://dx.doi.org/10.1177/0040563918801184.
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Traditional Christologies have focused attention on the question of Jesus’ beatific knowing. On the other hand, recent explorations into Spirit Christology raise different questions about his affectivity. Both issues highlight a concern with Jesus’ psychological experience. The present article proposes that both these issues can be fruitfully examined through the lens of the psychological analogy for the Trinity. In particular, Bernard Lonergan’s developments of the analogy drawing as they do on the experience of grace, shed a new and helpful light on the question of Jesus’ knowing and loving. This approach alleviates some of the more problematic aspects of the traditional approach to Jesus’ beatific vision, while also providing a more solid trinitarian basis for Catholic devotion to the Sacred Heart of Jesus.
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Määttänen, Ilmari, Niklas Ravaja, Pentti Henttonen, Sampsa Puttonen, Kristian Paavonen, Heikki Swan, and Taina Hintsa. "Type 1 long QT syndrome and psychological stress in a laboratory setting." Journal of Health Psychology 25, no. 9 (January 22, 2018): 1213–21. http://dx.doi.org/10.1177/1359105317751617.
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Trait-like sensitivity to stress in long QT syndrome patients has been documented previously. In addition, mental stress has been associated with symptomatic status of long QT syndrome. We examined whether the symptomatic type 1 long QT syndrome patients would be more sensitive to mental stress compared to asymptomatic patients and whether there would be differences in task-related physiological stress reactions between type 1 long QT syndrome patients and healthy individuals. The study population consisted of 21 symptomatic and 23 asymptomatic molecularly defined KCNQ1 mutation carriers, their 32 non-carrier relatives and 46 non-related healthy controls, with mean ages of 37, 39, 35 and 23 years, respectively. Electrocardiography was utilised to calculate inter-beat interval and high frequency and low frequency heart rate variability. Blood pressure was measured and mean arterial pressure and pulse pressure were calculated. Stress was induced using three different tasks: mental arithmetic, reaction time and public speech. Stress responses of symptomatic and asymptomatic type 1 long QT syndrome patients were not statistically different in any of the stress tasks. Short-term physiological stress reactivity of symptomatic type 1 long QT syndrome patients appears to be normal and does not enhance the risk assessment of asymptomatic mutation carriers.
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Demchenko, T. V., and E. R. Isaeva. "GERONTOLOGICAL ASPECTS OF SOMATIC DISEASES: OVERVIEW OF THE CURRENT STATE OF RESEARCH." PERSONALITY IN A CHANGING WORLD: HEALTH, ADAPTATION, DEVELOPMENT 8, no. 4 (December 30, 2020): 379–88. http://dx.doi.org/10.23888/humj20204379-388.
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This article is devoted to a review of theoretical and empirical data on the current state of gerontological researches in the field of somatic diseases. Presented the main models and theories of aging, revealed their basic idea and understanding of the causes and processes of aging. Considered the concept of gerotranscendence as a resource for optimal aging. Gerotranscendence examines the aging process from both biological and psychological points of view (an integrated approach). It is noted that there are no studies of optimal aging and gerotranscendence under conditions of somatic disease (only conditionally healthy respondents were studied). Three groups of somatic diseases are listed, which, according to UN statistics, are the main causes of mortality in the world (malignant neoplasms, stroke, heart disease). Presented the results of the empirical studies about the effect of somatic diseases on the psychological characteristics of elderly people (emotions, psychological well-being, attitudes towards illness, etc.). In order to more fully and comprehensively study the aging process, to understand the mechanisms of overcoming the disease, which will help to form the optimal level of psychological well-being of the elderly and, therefore, optimal aging, it is relevant to study the phenomenon of gerotranscendence in elderly people in conditions of severe somatic or lifethreatening disease.
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Burker, Eileen J., Alok Madan, Donna Evon, Jerry B. Finkel, and Michael R. Mill. "Educational level, coping, and psychological and physical aspects of quality of life in heart transplant candidates." Clinical Transplantation 23, no. 2 (March 2009): 233–40. http://dx.doi.org/10.1111/j.1399-0012.2009.00966.x.
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Mabrur, Haseeb. "Muslim personality: Study of the Concept of Personality Structure and Psychological Struggles." Interdisciplinary Journal Papier Human Review 1, no. 1 (August 30, 2020): 14–23. http://dx.doi.org/10.47667/ijphr.v1i1.4.
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This article discusses Muslim personality from the aspects of Personality Structure and Psychological Struggles. In Islam the Muslim personality is synonymous with Islamic morals, it is a harmonious blend of the system of the heart, reason, and lust that causes behavior and is a characteristic of Muslims. Because of that, the characteristic of a Muslim personality is that he always keeps his heart to obey Allah so that he always gets his light and keeps away from all his prohibitions which are human excrement. The structure of the Muslim personality includes three substances, namely body or body, spirit or spirituality, and nafsani or soul, the soul itself consists of the heart, reason, and lust. While lust consists of lust, anger, and muthmainah. All of these are the structures of Islamic personality, which if the system works well all will form the personality of a Kamil or a complete human being who is calm, always does good, tawakkal, and avoids despicable traits.
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Bustamante-Sánchez, Álvaro, José Francisco Tornero-Aguilera, Valentín E. Fernández-Elías, Alberto J. Hormeño-Holgado, Athanasios A. Dalamitros, and Vicente Javier Clemente-Suárez. "Effect of Stress on Autonomic and Cardiovascular Systems in Military Population: A Systematic Review." Cardiology Research and Practice 2020 (August 11, 2020): 1–9. http://dx.doi.org/10.1155/2020/7986249.
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Stress is regulated by the autonomous nervous system, increasing the sympathetic modulation when a threat is perceived. A multifactorial response usually leads to significant behavioural modifications and alterations on homeostasis and physical and psychological status. Moreover, stress is an emotional response that can lead to psychosocial and psychophysiological adversity. Regarding military population, military operations and combat exposure are important stressors that influence acute and chronic stress response in soldiers, affecting their performance and health. A bibliographic search was carried out between April and May 2019, focusing on recent studies (2013–2019) that analysed psychophysiological response, stress, stress regulation, heart rate, heart rate variability, and posttraumatic stress disorder in military population. Autonomic and cardiovascular chronic stress seems to be modulated by experience and previous specific training of each military unit. Physical exercise, music embedded with binaural beat technology, bidirectional sensory motor rhythm training, heart rate variability biofeedback, and transcutaneous vagal nerve stimulation are the main techniques applied to balance stress and to recover body homeostasis. Since military population are usually exposed to multiple stressors, knowing previous training and experience, together with developing techniques to balance stress, is the main practical application in this field of study to balance autonomic and cardiovascular systems.
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Mo, Qiu Yun, and Hao Li. "Influences of the Noise of Woodworking Wide Belt Sander on Human’s Psychological Load." Applied Mechanics and Materials 29-32 (August 2010): 2008–12. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.2008.
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The acousic comfort of woodworking wide belt sander has been evaluation by impacts of on-the-spot noise and the main single frequency noise of woodworking machine-sander on workers’ physiological and psychological load from the aspect of the noise influencing heart rate．Experimental noises are abstracted from the noise of the woodworking sander under the usual processing, as the noise source．The heart rate experiments are done under two states, namely the noise and the quiet in the laboratory．Finally, the change of human load is analyzed on the basis of the heart rate．The method of heart rate instead of traditional noise level puts more emphasis on the workers’ psychological load than traditional methods．The noise influence on human body is discussed from the aspects of both psychology and physiology. The results show that the influence of the 67 Hz noise on human body’s load is the greater than the other noises in the noise-exposed period and that of the 1422 Hz noise is the greatest and most difficult to recover in the experimental recovery course.
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Wheeler, Bethany, and Enrico Dippenaar. "Physiological and psychological components of paramedic wellbeing." International Paramedic Practice 10, no. 2 (June 2, 2020): 33–40. http://dx.doi.org/10.12968/ippr.2020.10.2.33.
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Literature throughout the years has identified that wellbeing includes a variety of concepts that primarily have social, physical, and mental components. Research still needs to identify how the key aspects of these themes link together to create a holistic wellbeing approach, especially in frontline emergency healthcare, like paramedics. Linking together physiological indicators and psychological mediators is currently being investigated through a feasibility study at Anglia Ruskin University. We describe these components as an individual's state in relation to their heart rate variability and cortisol levels (physiological), and individual, social, and organisational mediators (psychological). We present a narrative review of selected literature to introduce and describe these components to the paramedic profession. This review is not exhaustive or representative of all literature on the topic and thus our description should be interpreted as an introduction to concepts of paramedic wellbeing that has not previously been combined or discussed in such a manner.
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Böhm, Michael, Andrew J. S. Coats, Ingrid Kindermann, Ilaria Spoletini, and Giuseppe Rosano. "Physiological monitoring in the complex multimorbid heart failure patient - Conclusions." European Heart Journal Supplements 21, Supplement_M (December 1, 2019): M68—M71. http://dx.doi.org/10.1093/eurheartj/suz232.
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Abstract Comorbidities are increasingly recognized as crucial components of the heart failure syndrome. Main specific challenges are polypharmacy, poor adherence to treatments, psychological aspects, and the need of monitoring after discharge. The chronic multimorbid patient therefore represents a specific heart failure phenotype that needs an appropriate and continuous management over time. This supplement issue covers the key points of a series of meeting coordinated by the Heart Failure Association of the European Society of Cardiology (ESC), that have discussed the issues surrounding the effective monitoring of our ever more complex and multimorbid heart failure patients. Here, we present an overview of the complex issues from a healthcare delivery perspective.
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An, Eric, Anne A. T. Nolty, Stacy S. Amano, Albert A. Rizzo, J. Galen Buckwalter, and Jared Rensberger. "Heart Rate Variability as an Index of Resilience." Military Medicine 185, no. 3-4 (October 23, 2019): 363–69. http://dx.doi.org/10.1093/milmed/usz325.
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Abstract Introduction Resilience is the ability to maintain or quickly return to a stable physical and psychological equilibrium despite experiencing stressful events. Flexibility of the autonomic nervous system is particularly important for adaptive stress responses and may contribute to individual differences in resilience. Power spectrum analysis of heart rate variability (HRV) allows measurement of sympathovagal balance, which helps to evaluate autonomic flexibility. The present study investigated HRV as a broad index of resilience. Materials and Methods Twenty-four male participants from the Army National Guard Special Forces completed psychological measures known to relate to resilience and had HRV measured while undergoing stressful virtual environment scenarios. Pearson product-moment correlations were used to explore the relationships between HRV and resilience factors. All research was conducted with the oversight of the Human Subjects Review Committee of Fuller Theological Seminary. Results Trends toward significance were reported in order to provide results that would reasonably be expected in a study of higher power. Trends between resilience factors and HRV were found only during specific stress-inducing simulations (see Tables III). Conclusion Greater resilience to stress was associated with HRV during nonstress periods. Higher levels of resilience to traumatic events were associated with HRV during circumstances that were more stressful and emotionally distressing. Post hoc analysis revealed that specific factors including flexibility, emotional control, and spirituality were driving the relationship between general resilience and HRV following emotionally laden stressors. Less stress vulnerability was associated with HRV following intermittent brief stressors. In sum, HRV appears to represent some aspects of an individual’s overall resilience profile. Although resilience remains a complex, multidimensional construct, HRV shows promise as a global psychophysiological index of resilience. This study also offers important perspectives concerning ways to optimize both physical and psychological health.
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Tancheva, Lyubka, Maria Cristina Petralia, Simona Miteva, Stela Dragomanova, Ayten Solak, Reni Kalfin, Maria Lazarova, et al. "Emerging Neurological and Psychobiological Aspects of COVID-19 Infection." Brain Sciences 10, no. 11 (November 12, 2020): 852. http://dx.doi.org/10.3390/brainsci10110852.
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The SARS-CoV-2 virus, first reported in December 2019 in China, is the causative agent of the current COVID-19 pandemic that, at the time of writing (1 November 2020) has infected almost 43 million people and caused the death of more than 1 million people. The spectrum of clinical manifestations observed during COVID-19 infection varies from asymptomatic to critical life-threatening clinical conditions. Emerging evidence shows that COVID-19 affects far more organs than just the respiratory system, including the heart, kidneys, blood vessels, liver, as well as the central nervous system (CNS) and the peripheral nervous system (PNS). It is also becoming clear that the neurological and psychological disturbances that occur during the acute phase of the infection may persist well beyond the recovery. The aim of this review is to propel further this emerging and relevant field of research related to the pathophysiology of neurological manifestation of COVID-19 infection (Neuro-COVID). We will summarize the PNS and CNS symptoms experienced by people with COVID-19 both during infection and in the recovery phase. Diagnostic and pharmacological findings in this field of study are strongly warranted to address the neurological and psychological symptoms of COVID-19.
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Twiss, Sean D., Naomi Brannan, Courtney R. Shuert, Amanda M. Bishop, Patrick P. Pomeroy, and Simon Moss. "An external telemetry system for recording resting heart rate variability and heart rate in free-ranging large wild mammals." PLOS ONE 16, no. 6 (June 4, 2021): e0252013. http://dx.doi.org/10.1371/journal.pone.0252013.
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Measures of heart rate variability (and heart rate more generally) are providing powerful insights into the physiological drivers of behaviour. Resting heart rate variability (HRV) can be used as an indicator of individual differences in temperament and reactivity to physical and psychological stress. There is increasing interest in deriving such measures from free ranging wild animals, where individuals are exposed to the natural and anthropogenic stressors of life. We describe a robust, externally mounted heart rate monitor for use in wild mammals, deployed here on wild breeding adult female grey seals (Halichoerus grypus), that delivers millisecond precise measures of inter beat intervals (IBIs), allowing computation of resting HRV parameters. Based on Firstbeat™ heart rate belts, our system allows for remote, continuous recording of IBI data from over 30 individuals simultaneously at ranges of up to 200m. We assessed the accuracy of the IBI data provided by the Firstbeat™ system using concurrent IBI data derived from in-field electrocardiogram (ECG) recordings. Bland-Altmann analyses demonstrated high correspondence between the two sets of IBI data, with a mean difference of 0.87±0.16ms. We used generalized additive mixed-effects models to examine the impact of the default Firstbeat™ software artefact correction procedure upon the generation of anomalous data (flats and stairs). Artefact correction and individual activity were major causes of flats and stairs. We used simulations and models to assess the impact of these errors on estimates of resting HRV and to inform criteria for subsampling relatively error free IBI traces. These analyses allowed us to establish stringent filtering procedures to remove traces with excessive numbers of artefacts, including flats and stairs. Even with strict criteria for removing potentially erroneous data, the abundance of data yielded by the Firstbeat™ system provides the potential to extract robust estimates of resting HRV. We discuss the advantages and limitations of our system for applications beyond the study system described here.
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Adhikaree, Ajay, Rabi Malla, Ram Kishor Sah, Arun Maskey, Sujeeb Rajbhandari, Deewakar Sharma, Binayak Gautam, and Shaneez Najmy. "Echocardiographic assessment of Diastolic Function in patients with Atrial Fibrillation." Nepalese Heart Journal 16, no. 2 (November 14, 2019): 17–21. http://dx.doi.org/10.3126/njh.v16i2.26312.
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Background and Aims: Echocardiographic assessment of left ventricular diastolic function in patients with atrial fibrillation is a challenge as loss of atrial kick (A wave), beat to beat variability and left atrium enlargement despite normal atrial pressure make usual guideline based estimation difficult and inaccurate. Hence adoption of additional echocardiography parameters are necessary which are tricky and have varied results. Hence the aim of this study was to study various aspects of diastolic function in patients with atrial fibrillation.
Methods: It was a hospital based prospective cross-sectional observational study conducted at cardiology unit, National Academy of Medical Sciences, Kathmandu and Shahid Gangalal National Heart Center, Kathmandu from 1st July 2018 to 30th June 2019.
Results: Total of 92 patients were studied. About one third (34.8%) had diastolic dysfunction. Ratio of E/e’(14.65 ± 2.21 Vs 7.66 ± 1.18) , E/Vp (1.57 ± 0.14 Vs 1.20 ± 0.11), isovolumetric relaxation time (53.06 ± 13.82ms Vs 89.33 ± 9.88ms) and deceleration time of pulmonary venous diastolic wave (203.09 ± 26.13ms Vs 292.25 ± 36.32ms) were significantly different in patients with diastolic dysfunction compared to patients without diastolic dysfunction with sensitivity of 90.6%, 84.4%, 81.2% and 78.1% respectively.
Conclusion: Diastolic dysfunction is a common entity in patients with atrial fibrillation. Echocardiography parameters like E/e’ ratio, isovolumetric relaxation time, E/Vp ratio and deceleration time of diastolic pulmonary wave were highly sensitive in detection of diastolic dysfunction.
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Kazin, E. M., L. A. Varich, O. L. Tarasova, O. N. Chetverik, N. N. Koshko, L. V. Arlasheva, and N. V. Nemolochnaya. "Comprehensive Psycho-Physiological Approach to the Assessment of Adaptive Capacity of Teenage Schoolchildren with Different Types of Vegetative Regulation." Bulletin of Kemerovo State University 22, no. 2 (July 8, 2020): 444–54. http://dx.doi.org/10.21603/2078-8975-2020-22-2-444-454.
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The present research featured the typological features of psycho-social, neurophysiological, and endocrine status of 214 schoolchildren of both sexes aged 14–16. The research objective was to identify the relationship between psychosocial and physiological adaptation of adolescents. Cardiorhythmography made it possible to divide the participants according to three types of vegetative regulation: sympathicotonia, vagotonia, and eutonia. The participants were tested for indicators of neurodynamics, emotional state, and socio-psychological adaptation, as well as for cortisol and testosterone content in saliva. Intersystem interrelations were evaluated by means of correlation analysis. The teenagers with predominating sympathetic influences appeared to possess the highest degree of conjugation of social-psychological and vegetative components of the functional system: as anxiety and manifestations of social-psychological misadaptation increased, so did the ergotropic impact on heart beat rate. The vagotonic teenagers demonstrated a much lower total number of correlations, with a distinct interrelation between the increasing anxiety level and the increasing parasympathetic impact. The teenagers with eutonia had a lower number of correlations between psychological, neurodynamic, and vegetative levels in comparison with other types. The analysis revealed the following adaptive strategies in adolescents. The trophotropic hyporeactive strategy was typical of male vagotonics with relatively high levels of steroid hormone secretion. The ergotropic hyperreactive strategy was popular in the sympathotonic group, especially boys with low levels of anabolic and catabolic steroids and girls with a relatively high content of testosterone. The adolescents with eutonia proved to have the balanced strategy. The data obtained can help to create pedagogical conditions for improving the adaptive capacity of schoolchildren, as well as for the development of individual style of activity and successful learning in teenagers.
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Johannessen, E., T. Davies, A. Valeriano, E. Blackmore, A. Belyea, and F. Gilic. "LO77: Performance enhancing psychological skills in clinical simulation." CJEM 22, S1 (May 2020): S35. http://dx.doi.org/10.1017/cem.2020.131.
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Introduction: Clinical simulations in are designed to evoke feelings of stress and uncertainty in order to mimic challenges that learners will face in the real world. When not managed properly, these sources of extraneous cognitive load cause a burden on working memory, leading to a hindered ability to acquire new information. The “Beat the Stress Fool” (BTSF) protocol is a performance-enhancing tool designed to reduce cognitive overload during acute care scenarios. It involves breathing exercises, positive self-talk, visualization, and deliberate articulations. This study aims to validate the BTSF protocol as a method for reducing cognitive load using both psychometric and physiologic measures. Methods: Data collection took place during the Queen's University “Nightmares-FM” course. This clinical simulation program involves team-based scenarios designed to teach the fundamentals of acute care to first-year family medicine residents. Participants were divided equally into experimental and control groups based on pre-existing cohorts. Participants completed a baseline state-trait anxiety inventory and a demographics survey. The experimental group was guided through the BTSF protocol prior to each of 16 simulations; in both groups, physiologic and psychometric cognitive load measurements were collected for the alternating team leader. Galvanic skin response (GSR) and heart rate (HR) were collected during a 15-second baseline and throughout each simulation using a Shimmer 3 GSR+ wearable sensor. Self-reported cognitive load was assessed after each scenario using the 9-point Paas scale. Results: The mean Paas scores for the BTSF group were significantly lower than the control group (6.2 vs 6.9, p < 0.05), indicating lower subjective cognitive load. GSR signal magnitude (p = 0.086), spike amplitude (p = 0.066), and spike density (p = 0.584) were also lower in the BTSF group. There was no difference in HR between groups. There was not a significant correlation between self-reported cognitive load and the normalized physiologic measures. Conclusion: The results demonstrate the effectiveness of the BTSF protocol in lowering the amount of perceived mental effort required to perform clinical simulation tasks. These findings were mirrored in the galvanic skin response signal, though our study was likely underpowered for significance. This is the first study to validate a proof-of-concept for the BTSF protocol in learners during simulated training.
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Sager, David M., Ashley E. Burch, Hassan Alhosaini, Tracy Vaughan, and Samuel F. Sears. "Changes in cardiac anxiety and self-care practices in heart failure patients following implantation of wireless hemodynamic monitoring sensors." European Journal of Cardiovascular Nursing 19, no. 5 (February 17, 2020): 440–43. http://dx.doi.org/10.1177/1474515120905405.
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Background: Wireless implantable hemodynamic monitors assist cardiac care providers in tailoring medication regimens to reduce chronic heart failure hospital admissions and to improve patient quality of life. Previous research exists to support wireless implantable hemodynamic monitors favorable impact on medical endpoints but, however, their psychological and behavioral effects have not yet been established. The purpose of this pilot study was to investigate patient psychological and behavioral changes after receiving the wireless implantable hemodynamic monitor. Methods: Patients with heart failure ( n=26) who were implanted with wireless implantable hemodynamic monitor sensors completed the Cardiac Anxiety Questionnaire and Self-Care of Heart Failure Index version 6.2 at pre-implant and at one-month post-implant, as well as an initial demographic questionnaire. Results: Heart failure patients who received a wireless implantable hemodynamic monitor experienced a significant reduction in cardiac anxiety, t(25)=2.93, p=0.007, z=−0.46, d=0.58, driven by a reduction in fear of their condition, t(25)=2.26, p=0.03, z=−0.42, d=0.44. Increases in self-care behaviors fell short of significance t(25)=1.67, p=0.11, but showed a medium effect size, d=0.33. Conclusion: Heart failure patients who received a wireless implantable hemodynamic monitor reported significantly reduced cardiac fear, indicating that wireless implantable hemodynamic monitor technology may produce a collateral benefit in psychological effects. Patient self-care may also benefit but the current study was under-powered to reach statistical significance. Patient education about psychological and behavioral aspects of the wireless implantable hemodynamic monitor implant may yield increased patient engagement and broader health benefits if these results are confirmed in a larger study.
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Willy, Kevin, Christian Ellermann, Sarah Syring, Benjamin Rath, Florian Reinke, Daniela Willy, Julian Wolfes, et al. "Psychological Aspects of Syncopes and Possible Association with Recurrency—The Role of Implantable Loop Recorders." Journal of Personalized Medicine 12, no. 8 (July 26, 2022): 1219. http://dx.doi.org/10.3390/jpm12081219.
Full textAbstract:
Syncopes are a very common phenomenon and have a high recurrence rate. The differentiation between the psychogenic and physical, especially of arrhythmic origin, remains difficult. In many cases, an implantable loop recorder is used for the detection of possible arrhythmias, leading to syncopes. Yet, the existing literature suggests that psychological factors may play a significant role in recurrent syncopes. We aimed at analyzing the potential role of several psychological factors on the recurrence of arrhythmic or non-arrhythmic syncopes. Methods and results: A total of 119 patients, who had received an implantable loop recorder for recurrent syncopes at our center between 01/2018 and 12/2021, participated in this retrospective cohort study. Anxiety, depression and quality of life were assessed using extensively validated questionnaires (GAD-7, PHQ-9 and SF-12). The mean follow-up after loop recorder implantation was 710 ± 430 days and 50% of patients were female. The mean patient age was 54.8 ± 18.6 years. Most patients had no evidence of structural heart disease (84%), and normal LV function (92%). A statistical analysis revealed that the presence of structural heart disease was the strongest predictor for arrhythmic syncope during follow-up. In patients with non-arrhythmic syncopes, we found significantly higher levels of anxiety (GAD-7 score: 2.5 ± 2.6 vs. 4.8 ± 4.3) and depression (PHQ-9 score: 3.9 ± 3.6 vs. 6.8 ± 5.1), and a lower quality of life (SF-12 score: 33.7 ± 6.4 vs. 29.6 ± 7.8). Discussion: We identified factors as contributors to a better identification of patients at risk for arrhythmic as well as non-arrhythmic syncopes. Especially anxious or depressive symptoms may hinted at non-arrhythmic causes of syncope. However, the study was limited by its retrospective design and low patient number. Further trials should likewise combine the diagnostic yield of loop recorders with psychometric evaluations before implantation and combine it with additional diagnostic measures, such as video monitoring, to further examine the role of psychological factors in the pathomechanism and treatment of syncope.
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Uchmanowicz, Izabella, Aleksandra H. Pasieczna, Monika Wójta-Kempa, Robbert J. J. Gobbens, Agnieszka Młynarska, Kenneth M. Faulkner, Michał Czapla, and Remigiusz Szczepanowski. "Physical, Psychological and Social Frailty Are Predictive of Heart Failure: A Cross-Sectional Study." Journal of Clinical Medicine 11, no. 3 (January 23, 2022): 565. http://dx.doi.org/10.3390/jcm11030565.
Full textAbstract:
Background: Little is known about frailty among patients hospitalized with heart failure (HF). To date, the limited information on frailty in HF is based on a unidimensional view of frailty, in which only physical aspects are considered when determining frailty. The aims of this study were to study different dimensions of frailty (physical, psychological and social) in patients with HF and the effect of different dimensions of frailty on the incidence of heart failure. Methods: The study used a cross-sectional design and included 965 patients hospitalized for heart failure and 164 healthy controls. HF was defined according to the ESC guidelines. The Tilburg Frailty Indicator (TFI) was used to assess frailty. Probit regression analyses and chi-square statistics were used to examine associations between the occurrence of heart failure and TFI domains of frailty. Results: Patients diagnosed with frailty were 15.3% more likely to develop HF compared to those not diagnosed with frailty (p < 0.001). An increase in physical, psychological and social frailty corresponded to an increased risk of HF of 2.9% (p < 0.001), 4.4% (p < 0.001) and 6.6% (p < 0.001), respectively. Conclusions: We found evidence of the association between different dimensions of frailty and incidence of HF.
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Anthony, Gerard-Marie, and Sabine Heisman. "A Merciful Response to Miscarriage and Stillbirth." Ethics & Medics 43, no. 12 (2018): 1–2. http://dx.doi.org/10.5840/em2018431219.
Full textAbstract:
The three crucial aspects at the heart of the journey toward healing after miscarriage and stillbirth are pastoral, physiological, and psychological. It starts with drawing close to the heart of Christ so that He can transform our minds, bodies, and souls. The sufferer will move from feelings of abandonment to the knowledge of a powerful accompaniment. This passage toward healing reflects Christ, who unites our humanity with his divinity, meets us in our pain, and accepts us as we are in life. The pastoral dimension guides us toward the God who is love, manifested through peace and mercy. The physiological dimension addresses the physical trauma experienced by the body and keeps mothers connected to their children. The psychological dimension heals the mind following injury by way of continuous renewal and transformation through the love of God.
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Frye, Jacob N., Shelbi L. Sutterfield, Jacob T. Caldwell, Bradley J. Behnke, Steven W. Copp, Heather R. Banister, and Carl J. Ade. "Vascular and autonomic changes in adult cancer patients receiving anticancer chemotherapy." Journal of Applied Physiology 125, no. 1 (July 1, 2018): 198–204. http://dx.doi.org/10.1152/japplphysiol.00005.2018.
Full textAbstract:
Chemotherapy is associated with acute and long-term cardiotoxicity. To date, risk assessment has primarily focused on the heart; however, recent findings suggest that vascular and autonomic function may also be compromised. Whether this occurs during chemotherapy treatment remains unknown. Therefore, the present study evaluated carotid artery stiffness, cardiovagal baroreflex sensitivity (cBRS), and heart rate variability (HRV) in cancer patients currently being treated with adjuvant chemotherapy. Eleven current cancer patients receiving adjuvant chemotherapy and 11 matched (1:1) controls were studied. Carotid artery stiffness was assessed via two-dimensional ultrasonography. cBRS was assessed from the spontaneous changes in beat-to-beat time series of R-R interval and systolic blood pressure via the cross-correlation technique. HRV was assessed using the standard deviation of R-R intervals (SDNN) and low (LF) and high (HF) power frequencies. Carotid artery β-stiffness was significantly higher in the cancer patients compared with control participants (8.0 ± 0.8 vs. 6.3 ± 0.6 U, respectively; P = 0.02). cBRS was lower in the cancer patients compared with controls (4.3 ± 0.7 vs. 10.7 ± 1.9 ms/mmHg, respectively; P = 0.01), and all indices of HRV were lower in the cancer patients (SDNN, P = 0.02; LF, P = 0.01; HF, P = 0.02). There was no significant correlation between β-stiffness and cBRS ( P = 0.4). However, LF power was significantly correlated with cBRS (r = 0.66, P < 0.001). Compared with matched healthy controls, cancer patients undergoing chemotherapy demonstrated a significantly higher arterial stiffness and lower cBRS. The previously reported adverse effects of chemotherapy on the heart appear to also influence other aspects of cardiovascular health. NEW & NOTEWORTHY Patients treated with anticancer chemotherapy exhibit an impaired baroreflex control of arterial blood pressure and increased arterial stiffness. These findings hold significant value, in particular as part of a risk-stratification strategy in current cancer patients receiving chemotherapy. This is the first investigation, to our knowledge, to demonstrate an attenuated spontaneous baroreflex control of arterial blood pressure in cancer patients currently undergoing chemotherapy.
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Conroy, David E. "The Unique Psychological Meanings of Multidimensional Fears of Failing." Journal of Sport and Exercise Psychology 26, no. 3 (September 2004): 484–91. http://dx.doi.org/10.1123/jsep.26.3.484.
Full textAbstract:
The multidimensional, hierarchical model of fear of failure (FF) has gained popularity in sport; however, the unique meaning of lower-order fears of failing in previous research may have been obscured by the hierarchical structure of the model. The present research aimed to establish the unique psychological meaning of lower-order fears of failing. Samples of recreational athletes (N = 440) and female varsity intercollegiate track and field athletes (N = 71) completed measures of multidimensional fears of failing, self-talk while failing, 2 × 2 achievement goals, and contextual motivation. Partial correlation analyses revealed unique patterns of relationships for each lower-order FF score with the external measures of self-talk, achievement goals, and contextual motivation. Fears of experiencing shame and embarrassment appeared to be at the heart of dysfunctional aspects of FF, whereas fears of having an uncertain future evidenced some uniquely adaptive components.