scholarly journals ІНФОРМАТИВНЕ ЗНАЧЕННЯ ОКРЕМИХ ПОКАЗНИКІВ ОСЦИЛОГРАМ СУДИН ВЕРХНЬОЇ КІНЦІВКИ, ЗАРЕЄСТРОВАНИХ В ПРОЦЕСІ ВИМІРЮВАННЯ АРТЕРІАЛЬНОГО ТИСКУ

2014 ◽  
Author(s):  
D. V. Vakulenko
Keyword(s):  
Blood Pressure ◽  
Cardiovascular System ◽  
Rapid Diagnosis ◽  
Daily Monitoring ◽  
New Approaches ◽  
Electronic Pressure ◽  
Class 1 ◽  
Pressure Meter

<p class="1">New approaches and valuation parameters of the cardiovascular system during the procedure blood pressure electronic pressure meter VAT41 -2. They are informative and promising directions for rapid diagnosis, daily monitoring, monitoring the effectiveness of treatment and research. Correlation was calculated to assess the interaction between different vallue cardiovascular system and show its relevance. Presented in this paper direction requires deeper study and interpretation of the obtained parameters.</p>

scholarly journals Оцінка стану серцево-судинної системи машиністів локомотивів

2012 ◽  
Vol 3 (2) ◽  
pp. 42-47
Author(s):  
O. Р. Korzhenevs’ka ◽  
O. В. Severynovs’ka
Keyword(s):  
Blood Pressure ◽  
Left Ventricle ◽  
Arterial Pressure ◽  
Arterial Hypertension ◽  
Cardiovascular System ◽  
The State ◽  
Daily Work ◽  
Daily Monitoring ◽  
Structural Abnormalities ◽  
Left Ventricle Myocardium

With the help of daily monitoring of blood pressure we assessed the state of the cardiovascular system of foot-platemen of the Prydniprovsk railway Pjatykhatky Depot. Foot-platemen having the I stage of arterial hypertension demonstrated the 11–17% increase of arterial pressure during daily work. It is related to inefficient adaptation to the physical and psychoemotional overloads. With aggravation of the disease the change of arterial pressure during the work, especially night work, ismisaligned and characterised by considerable structural abnormalities of the left ventricle myocardium.

Bifurcation in a Simple Model of the Cardiovascular System

2000 ◽  
Vol 39 (02) ◽  
pp. 118-121 ◽  
Author(s):  
S. Akselrod ◽  
S. Eyal
Keyword(s):  
Nonlinear Dynamics ◽  
Blood Pressure ◽  
Heart Rate ◽  
Fixed Point ◽  
Cardiovascular System ◽  
Modified Model ◽  
Mayer Waves ◽  
Sustained Oscillations ◽  
Human Cardiovascular System ◽  
Physiological Values

Abstract:A simple nonlinear beat-to-beat model of the human cardiovascular system has been studied. The model, introduced by DeBoer et al. was a simplified linearized version. We present a modified model which allows to investigate the nonlinear dynamics of the cardiovascular system. We found that an increase in the -sympathetic gain, via a Hopf bifurcation, leads to sustained oscillations both in heart rate and blood pressure variables at about 0.1 Hz (Mayer waves). Similar oscillations were observed when increasing the -sympathetic gain or decreasing the vagal gain. Further changes of the gains, even beyond reasonable physiological values, did not reveal another bifurcation. The dynamics observed were thus either fixed point or limit cycle. Introducing respiration into the model showed entrainment between the respiration frequency and the Mayer waves.

Occupational disorders of diurnal biorhythms of locomotive crew workers

2019 ◽  
pp. 25-30 ◽  
Author(s):  
D. V. Alpaev ◽  
V. V. Serikov ◽  
D. V. Sitovich ◽  
O. E. Chernov
Keyword(s):  
Blood Pressure ◽  
The Body ◽  
Occupational Hazards ◽  
Railway Transport ◽  
Occupational Adaptation ◽  
Daily Monitoring ◽  
Occupational Activities ◽  
Engine Driver ◽  
Night Shifts ◽  
Light Sleep

Introduction. Work of locomotive crew members (engine drivers and engine driver assistants) in railway transport is associated with exposure to complex of occupational hazards including psychoemotional stress and shiftwork (with night shifts) along with noise and vibration.Objective. To study influence of shift work (with irregular alternation of day and night shifts) on biorhythms disturbances in locomotive crew workers.Materials and methods. Polls, simulators of occupational activities with training complex «Cabin of engine driver EP1M», daily monitoring of blood pressure, statistic data processing by SPSS–20 software.Results. Findings are that 953 locomotive crew workers (94%) experienced sensations of temporary disorientation, slight dizziness, sleepiness, interpreted as monotony and sensor deprivation. 61% of the examinees demonstrated frustration signs, in 30% of the cases there were certain manifestations of mental ill-being — irritability, fatigue, weariness, absent-mindedness, anxiety; 27.2% of the testees experiences various sleep disorders; 13.8% of the workers complained of «light sleep», 2% of those — restless sleep, 0.6% — sleeplessness. In occupationally related biorhythms disturbance, the body undergoes occupational adaptation, with partial transformation for atypical schedule of sleep and wakefulness.Results. To preserve health, efforts should be aimed at adaptation to shifted occupational activities with safe adaptogenic medications, low-caloric diet for individuals working at irregular shifts, create conditions for adequate physical activity of the workers between shifts. Necessities also are individual norms for blood pressure parameters in engine drivers with night shiftwork, specification of antihypertensive treatment for patients with irregular shifted work.

Cardiovascular Effects of Micromeria graeca (L.) Benth. ex Rchb in Normotensive and Hypertensive Rats

2020 ◽  
Vol 20 (8) ◽  
pp. 1253-1261
Author(s):  
Mourad Akdad ◽  
Mohamed Eddouks
Keyword(s):  
Blood Pressure ◽  
Cardiovascular System ◽  
Arterial Blood Pressure ◽  
Antihypertensive Activity ◽  
Computer Assisted ◽  
Hypertensive Rats ◽  
Vasorelaxant Effect ◽  
Arterial Blood

Aims: The present study was performed in order to analyze the antihypertensive activity of Micromeria graeca (L.) Benth. ex Rchb. Background: Micromeria graeca (L.) Benth. ex Rchb is an aromatic and medicinal plant belonging to the Lamiaceae family. This herb is used to treat various pathologies such as cardiovascular disorders. Meanwhile, its pharmacological effects on the cardiovascular system have not been studied. Objective: The present study aimed to evaluate the effect of aqueous extract of aerial parts of Micromeria graeca (AEMG) on the cardiovascular system in normotensive and hypertensive rats. Methods: In this study, the cardiovascular effect of AEMG was evaluated using in vivo and in vitro investigations. In order to assess the acute effect of AEMG on the cardiovascular system, anesthetized L-NAME-hypertensive and normotensive rats received AEMG (100 mg/kg) orally and arterial blood pressure parameters were monitored during six hours. In the sub-chronic study, rats were orally treated for one week, followed by blood pressure assessment during one week of treatment. Blood pressure was measured using a tail-cuff and a computer-assisted monitoring device. In the second experiment, isolated rat aortic ring pre-contracted with Epinephrine (EP) or KCl was used to assess the vasorelaxant effect of AEMG. Results: Oral administration of AEMG (100 mg/kg) provoked a decrease of arterial blood pressure parameters in hypertensive rats. In addition, AEMG induced a vasorelaxant effect in thoracic aortic rings pre-contracted with EP (10 μM) or KCl (80 mM). This effect was attenuated in the presence of propranolol and methylene blue. While in the presence of glibenclamide, L-NAME, nifedipine or Indomethacin, the vasorelaxant effect was not affected. Conclusion: This study showed that Micromeria graeca possesses a potent antihypertensive effect and relaxes the vascular smooth muscle through β-adrenergic and cGMP pathways.

Cardiovascular Responses to Muscle Stretching: A Systematic Review and Meta-analysis

2021 ◽  
Author(s):  
Ewan Thomas ◽  
Marianna Bellafiore ◽  
Ambra Gentile ◽  
Antonio Paoli ◽  
Antonio Palma ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Cardiovascular System ◽  
Vascular Function ◽  
Meta Analysis ◽  
Random Effect ◽  
Cardiovascular Responses ◽  
Qualitative Description ◽  
Cross Sectional ◽  
Quantitative Synthesis

AbstractThe aim of this study will be to review the current body of literature to understand the effects of stretching on the responses of the cardiovascular system. A literature search was performed using the following databases: Scopus, NLM Pubmed and ScienceDirect. Studies regarding the effects of stretching on responses of the cardiovascular system were investigated. Outcomes regarded heart rate(HR), blood pressure, pulse wave velocity (PWV of which baPWV for brachial-ankle and cfPWV for carotid-femoral waveforms), heart rate variability and endothelial vascular function. Subsequently, the effects of each outcome were quantitatively synthetized using meta-analytic synthesis with random-effect models. A total of 16 studies were considered eligible and included in the quantitative synthesis. Groups were also stratified according to cross-sectional or longitudinal stretching interventions. Quality assessment through the NHLBI tools observed a “fair-to-good” quality of the studies. The meta-analytic synthesis showed a significant effect of d=0.38 concerning HR, d=2.04 regarding baPWV and d=0.46 for cfPWV. Stretching significantly reduces arterial stiffness and HR. The qualitative description of the studies was also supported by the meta-analytic synthesis. No adverse effects were reported, after stretching, in patients affected by cardiovascular disease on blood pressure. There is a lack of studies regarding vascular adaptations to stretching.

Functional characteristics of the cardiovascular system in adolescents with high normal blood pressure

2010 ◽  
Vol 36 (3) ◽  
pp. 319-324
Author(s):  
N. B. Pankova ◽  
I. B. Alchinova ◽  
E. V. Afanaseva ◽  
M. Yu. Karganov
Keyword(s):  
Blood Pressure ◽  
Cardiovascular System ◽  
Normal Blood ◽  
Normal Blood Pressure ◽  
Functional Characteristics

scholarly journals Sodium Reduction and Consumption: the Change Between City, Food and Citizenship

2018 ◽  
Vol 28 (2) ◽  
pp. 124
Author(s):  
Sandra Maria Souza de Carvalho ◽  
Marcelo Calderari Miguel ◽  
Vitorino Fontenele Freire
Keyword(s):  
Blood Pressure ◽  
Cardiovascular System ◽  
Sodium Intake ◽  
Healthy Food ◽  
Sodium Reduction ◽  
Espírito Santo ◽  
Theoretical Assumptions ◽  
Espirito Santo ◽  
The City ◽  
State Schools

This study analyzes the salt / sodium in food, in public policies and health. In this way, it proposes to provide subsidies around the concepts of the importance of the city in the construction of healthy food. The purpose of this review is to discuss the constraints, reflecting on them through theoretical assumptions about the promotion of citizenship and the pasteurization of taste / flavors. Food in society raises the integration of actions, actors and various social spaces, such as: State, schools, associations, businessmen in order to excel, consistent and efficient, by an educating city. In the context of the state of Espírito Santo, for two years, the law 10.369/2015 banned salt shakers at bars and restaurants in Espírito Santo for two years. In this way, research shows that excessive sodium intake (which raises blood pressure and affects the cardiovascular system) brings several complications that can last for many years or even a lifetime.Redução e Consumo de Sódio: Trama entre Cidade, Alimentação e CidadaniaEste estudo analisar o sal/sódio na alimentação, nas políticas públicas e saúde. Desse modo, propõe fornecer subsídios em torno dos conceitos da importância da cidade na construção da alimentação saudável. O objetivo desta revisão é discutir os condicionantes, refletindo sobre eles por meio de pressuposições teóricas sobre a promoção de cidadania e da pasteurização de gosto/sabores. A alimentação na sociedade suscita integração das ações, dos atores e dos diversos espaços sociais, como: Estado, escolas, associações, empresários de modo a primar, consistente e eficiente, por uma cidade educadora. No contexto capixaba, vigou por dois anos a lei 10.369/2015 que proibia saleiros em mesas de bares e restaurantes do Espírito Santo sendo essa uma marco. Desta forma, a pesquisa demonstra que a ingestão excessiva de sódio (que eleva a pressão arterial e afeta o sistema cardiovascular) traz diversas complicações que podem perdurar por muitos anos ou até mesmo a vida toda.

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