scholarly journals MECHANISMS OF THE EFFECT OF TRADITIONAL MASSAGE ON CENTRAL AND PERIPHERAL CIRCULATION IN ADOLESCENT FEMALES INVOLVED IN RUNNING SPORTS

2020 ◽  
Vol 20 (3) ◽  
pp. 64-69
Author(s):  
A Sabiryanov ◽  
E Sabiryanova ◽  
S Sashenkov ◽  
I Izarovskaia
Keyword(s):  
Heart Rate ◽  
Blood Circulation ◽  
Heart Function ◽  
Pulse Amplitude ◽  
Peripheral Circulation ◽  
Adolescent Females ◽  
Frequency Characteristics ◽  
Neurohumoral Regulation ◽  
Before And After ◽  
Finger Pulse

Aim. The paper aims to analyze the effect of traditional massage on functional recovery of the cardiovascular system in adolescent females involved in running sports. Materials and methods. A 10-day traditional back and neck massage program was used as a recovery technique. The indicators of the central and peripheral circulation, the time and frequency characteristics of the heart rate, as well as finger pulse amplitude were obtained before and after the program. Results. After traditional massage, adolescent females involved in running sports demonstrate a decrease in heart rate, which is associated with a decrease in sympathoadrenal regulation of chronotropic heart function (a decrease in VLF, a decrease in the amplitude of dominant VLF and LF harmonics). Regression and canonical analysis shows that heart rate dependence of the activity of regulation levels changes. There is an increase in peripheral blood circulation and a decrease in blood pressure associated with both humoral and metabolic factors and a decrease in sympathoadrenal influences, which is confirmed by an analysis of pulse amplitude variability. It is shown that the dynamics of the time and frequency characteristics of VLF range is a marker of physiological changes in blood circulation after massage therapy. Conclusion. The effect of traditional massage on the blood circulation of adolescent females involved in running sports is associated with adaptation to massage effects and is manifested by changes in the neurohumoral regulation of hemodynamics.

scholarly journals Quantitative assessment of the relationship between behavioral and autonomic dynamics during propofol-induced unconsciousness

2020 ◽  
Author(s):  
Sandya Subramanian ◽  
Patrick L. Purdon ◽  
Riccardo Barbieri ◽  
Emery N. Brown
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Prediction Models ◽  
Electrodermal Activity ◽  
Strong Relationship ◽  
Pulse Amplitude ◽  
Physiological Data ◽  
Statistical Tool ◽  
Autonomic Changes ◽  
Before And After

ABSTRACTDuring general anesthesia, both behavioral and autonomic changes are caused by the administration of anesthetics such as propofol. Propofol produces unconsciousness by creating highly structured oscillations in brain circuits. The anesthetic also has autonomic effects due to its actions as a vasodilator and myocardial depressant. Understanding how autonomic dynamics change in relation to propofol-induced unconsciousness is an important scientific and clinical question since anesthesiologists often infer changes in level of unconsciousness from changes in autonomic dynamics. Therefore, we present a framework combining physiology-based statistical models that have been developed specifically for heart rate variability and electrodermal activity with a robust statistical tool to compare behavioral and multimodal autonomic changes before, during, and after propofol-induced unconsciousness. We tested this framework on physiological data recorded from nine healthy volunteers during computer-controlled administration of propofol. We studied how autonomic dynamics related to behavioral markers of unconsciousness: 1) overall, 2) during the transitions of loss and recovery of consciousness, and 3) before and after anesthesia as a whole. Our results show a strong relationship between behavioral state of consciousness and autonomic dynamics. All of our prediction models showed areas under the curve greater than 0.75 despite the presence of non-monotonic relationships among the variables during the transition periods. Our analysis highlighted the specific roles played by fast versus slow changes, parasympathetic vs sympathetic activity, heart rate variability vs electrodermal activity, and even pulse rate vs pulse amplitude information within electrodermal activity. Further advancement upon this work can quantify the complex and subject-specific relationship between behavioral changes and autonomic dynamics before, during, and after anesthesia. However, this work demonstrates the potential of a multimodal, physiologically-informed, statistical approach to characterize autonomic dynamics.

scholarly journals Quantitative assessment of the relationship between behavioral and autonomic dynamics during propofol-induced unconsciousness

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0254053
Author(s):  
Sandya Subramanian ◽  
Patrick L. Purdon ◽  
Riccardo Barbieri ◽  
Emery N. Brown
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Prediction Models ◽  
Electrodermal Activity ◽  
Strong Relationship ◽  
Pulse Amplitude ◽  
Physiological Data ◽  
Statistical Tool ◽  
Autonomic Changes ◽  
Before And After

During general anesthesia, both behavioral and autonomic changes are caused by the administration of anesthetics such as propofol. Propofol produces unconsciousness by creating highly structured oscillations in brain circuits. The anesthetic also has autonomic effects due to its actions as a vasodilator and myocardial depressant. Understanding how autonomic dynamics change in relation to propofol-induced unconsciousness is an important scientific and clinical question since anesthesiologists often infer changes in level of unconsciousness from changes in autonomic dynamics. Therefore, we present a framework combining physiology-based statistical models that have been developed specifically for heart rate variability and electrodermal activity with a robust statistical tool to compare behavioral and multimodal autonomic changes before, during, and after propofol-induced unconsciousness. We tested this framework on physiological data recorded from nine healthy volunteers during computer-controlled administration of propofol. We studied how autonomic dynamics related to behavioral markers of unconsciousness: 1) overall, 2) during the transitions of loss and recovery of consciousness, and 3) before and after anesthesia as a whole. Our results show a strong relationship between behavioral state of consciousness and autonomic dynamics. All of our prediction models showed areas under the curve greater than 0.75 despite the presence of non-monotonic relationships among the variables during the transition periods. Our analysis highlighted the specific roles played by fast versus slow changes, parasympathetic vs sympathetic activity, heart rate variability vs electrodermal activity, and even pulse rate vs pulse amplitude information within electrodermal activity. Further advancement upon this work can quantify the complex and subject-specific relationship between behavioral changes and autonomic dynamics before, during, and after anesthesia. However, this work demonstrates the potential of a multimodal, physiologically-informed, statistical approach to characterize autonomic dynamics.

scholarly journals Acute Effects of Smoking on Heart Rate and Peripheral Resistance in Young Smokers

2015 ◽  
Vol 32 (4) ◽  
pp. 287-292
Author(s):  
Ana Mrkaić ◽  
Suzana Branković ◽  
Pavle Randjelović ◽  
Milica Veljković ◽  
Ivan Pavlović ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Peripheral Resistance ◽  
Peripheral Circulation ◽  
Control Group ◽  
Acute Effects ◽  
Arterial Blood ◽  
Before And After ◽  
Vessel Flow ◽  
Harmful Effects

SummarySmoking has many harmful effects on human body. It is well known that smoking is one of the most important risk factors for cardiovascular diseases. Though the ingredients from cigarette smoke stimulate the release of vasoconstrictor and reduce the release of vasodilator substances, the goal of this study was to investigate the acute effects of smoking on arterial blood pressure, heart rate and blood vessel flow.The investigation was conducted on forty healthy volunteers divided into two groups of twenty non-smokers (control group), and twenty smokers (experimental group). The group of smokers was examined before and after smoking four cigarettes during one hour. Blood pressure and electrocardiograph (ECG) were measured by common methods. Brecht’s and Boucke’s methods of plethysmography were used to evaluate the peripheral circulation.There were no differences in measured systolic and diastolic blood pressure and recorded ECG between non-smokers and smokers, neither between smokers before and after smoking. However, heart rate was increased by 29.57% after smoking in comparison to the value before smoking.Evaluation of plethysmographic parameters showed that amplitude was significantly decreased. Parameters of peripheral resistance were very increased: ductility was decreased by over 20%.It can be concluded that acute smoking does not significantly affect the level of blood pressure, although it increases heart rate. The shape of plethysmograms showed decreased systolic filling and decreased diameters of blood vessels.

EFFECT OF LIPOPOLYSACCHARIDE FROM SALMONELLA TYPHI CELLS ON BLOOD CIRCULATION AND RESPIRATION OF ANESTHETIZED RATS

2020 ◽  
pp. 138-149
Author(s):  
T.S. Tumanova ◽  
E.A. Gubarevich ◽  
V.G. Aleksandrov
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Blood Circulation ◽  
Pressure Rise ◽  
Salmonella Typhi ◽  
Minute Volume ◽  
Initial Value ◽  
Value Differences ◽  
Before And After ◽  
Inhibitory Reflex

In order to understand the processes, which cause respiration disturbance and impaired circulation during the development of a systemic inflammatory response (SIR) it is necessary to study the mechanisms which implement the cardiorespiratory effects of an increased systemic level of bacterial lipopolysaccharides (LPS). LPS obtained from various bacteria differ in the composition that determines their toxicity. The aim of the present study was to experimentally test the hypothesis that LPS isolated from bacterium Salmonella tуphi (S. tуphi) cells could affect reflexes involved in circulation and breathing control. Materials and Methods. The authors recorded blood pressure, pneumotachogram and diaphragm electromyogram in acute experiments on Wistar rats (n=23, weight 200–225 g), anesthetized with urethane (1800 mg/kg, i.p.). Theу also calculated mean arterial pressure, heart rate, breathing capacity and respiratory minute volume. Baroreflex was tested by intravenous phenylephrine administration, which caused a dose-dependent blood pressure rise and, as a result, a reflex heart rate fall. The strength of the inspiratory inhibitory reflex (IIR) was evaluated by functional vagotomy. The values of the studied parameters were evaluated before and after intravenous administration of the physiologic saline, or the saline containing 100 μg of LPS. Parameter differences from the initial and control values were evaluated according to Mann–Whitney criterion and considered relevant at p<0.05. Results. LPS administration led to a significant blood pressure, heart rate and ventilation increase. 60 minutes after LPS administration, baroreflex strength index decreased by an average 34±14 % of the initial value and remained at that level until the end of the experiment. The IIR strength also decreased, reaching 93±4 % of the initial value. Differences were significant at p<0.05. Conclusion. The results obtained prove that LPS from S. tуphi cells suppress the reflex mechanisms, which regulate blood circulation and respiration. Keywords: bacterial lipopolysaccharide, Salmonella tуphi, circulation, respiration, arterial baroreflex, inspiratory-inhibitory reflex. Исследование механизмов, реализующих кардиореспираторные эффекты повышенного системного уровня бактериальных липополисахаридов (ЛПС), необходимо для понимания процессов, приводящих к нарушению дыхания и кровообращения при развитии системного воспалительного ответа. ЛПС разных видов бактерий отличаются по составу компонента, определяющего их активность. Цель настоящего исследования состояла в экспериментальной проверке предположения о том, что ЛПС, выделенный из клеток бактерии Salmonella tуphi, может оказывать влияние на рефлексы, участвующие в контроле кровообращения и дыхания. Материалы и методы. В острых экспериментах на крысах линии «Вистар» (n=23, масса 200–225 г), анестезированных уретаном (1800 мг/кг, в/б), регистрировали артериальное давление, пневмотахограмму и электромиограмму диафрагмы. Определяли среднее артериальное давление, частоту сердечных сокращений, дыхательный объём и минутный объём дыхания. Барорефлекс тестировали путем внутривенного введения раствора фенилэфрина, который вызывал дозозависимое повышение артериального давления и, как следствие, рефлекторное снижение частоты сердечных сокращений. Силу инспираторно-тормозящего рефлекса оценивали методом функциональной ваготомии. Величину учитываемых параметров определяли до и после внутривенного введения раствора, содержащего 100 мкг ЛПС или физиологического раствора. Отличия параметров от их исходных и контрольных значений оценивали по критерию Манна–Уитни и считали достоверными при p<0,05. Результаты. Введение ЛПС приводило к статистически значимому росту частоты сердечных сокращений, дыхательного объёма и вентиляции. Через 60 мин после введения ЛПС показатель силы барорефлекса уменьшался в среднем до 34±14 % от исходной величины и оставался на этом уровне до конца эксперимента. Сила инспираторно-тормозящего рефлекса к этому моменту также снижалась, достигая 93±4 % от исходной величины. Выводы. Полученные результаты доказывают, что под влиянием ЛПС, выделенного из клеток Salmonella tуphi, происходит ослабление рефлекторных механизмов регуляции кровообращения и дыхания. Ключевые слова: бактериальный липополисахарид, Salmonella tуphi, кровообращение, дыхание, артериальный барорефлекс, инспираторно-тормозящий рефлекс.

scholarly journals Investigating the Interaction Between EEG and HRV Protocol for Study of Three-Circle Post Standing Qigong

2020 ◽  
Author(s):  
Jiaxuan Lyu ◽  
Yulong Wei ◽  
Tianyang Tan ◽  
Qingchuan Hu ◽  
Hangyu Li ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Function ◽  
Intervention Group ◽  
Multiscale Entropy ◽  
Institutional Review Boards ◽  
Complex Signal ◽  
Control Group ◽  
Signal Process ◽  
Before And After ◽  
Mind And Body

Abstract Background Qigong has a long-term application as an initiative therapy for prevent and cure diseases, as a mindful exercise, it’s unique function of integrate mind, breath and body gets a lot of attention, researches show that qigong practice could adjust brain and heart function. Currently we have limitations on study qigong’s coordinate mechanism between mind and body, existing studies lack of evidence on electrophysiology research.Our object here is to propose a method to evaluate the effects of qigong on mind body adjustment, and to analyse the coordinate function of Electroencephalogram (EEG) and Heart rate variability (HRV) by complex signal process.MethodsA two-arm randomized clinical trial with eighty-four qigong naïve subjects without cerebral or cardiovascular diseases or other severe syndromes will be allocate to either intervention group(n=42) or wait in list control group(n=42). Participants in the intervention group will conduct Three-circle post standing qigong exercise 5 times per week for 8 weeks, while wait in list group will maintain their current lifestyle during 8 weeks period. The outcome will be complexity-based measures of heart rate and EEG signals assessed at baseline and 8 weeks. Multiscale entropy analysis will be used as measures of complexity.ConclusionThis study will be investigate the effects of qigong exercise by EEG and HRV analyse before and after Three-circle post standing practice, and to measure their synergies by complex signal process method. Results of this study may lead to novel biomarkers that help us monitor and understand the physiological processes of brain and heart function and explore the potential benefits of Qigong and will provide a research evidence for qigong’s mind and body synergy function and to direct future clinical treatment.Ethics and disseminationThe protocol has been approved by the institutional review boards of Beijing University of Chinese Medicine, where the study will take place(approval number: 2018BZHYLL0109).Trail registrationThis study has been registered with the“Chinese Clinical Trail Registry”, Republic of China, which is a registry in the WHO Registry Network. Register number: ChiCTR-Bon-17010840.

The influence of osteopathic correction on the rate of various rhythms of the body

2019 ◽  
pp. 64-71 ◽  
Author(s):  
A. E. Chernikova ◽  
Yu. P. Potekhina
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
Age Groups ◽  
Biomechanical Properties ◽  
Dispersion Analysis ◽  
The Body ◽  
Body Tissues ◽  
Age Related ◽  
Significant Difference ◽  
Before And After

Introduction. An osteopathic examination determines the rate, the amplitude and the strength of the main rhythms (cardiac, respiratory and cranial). However, there are relatively few studies in the available literature dedicated to the influence of osteopathic correction (OC) on the characteristics of these rhythms.Goal of research — to study the influence of OC on the rate characteristics of various rhythms of the human body.Materials and methods. 88 adult osteopathic patients aged from 18 to 81 years were examined, among them 30 men and 58 women. All patients received general osteopathic examination. The rate of the cranial rhythm (RCR), respiratory rate (RR) heart rate (HR), the mobility of the nervous processes (MNP) and the connective tissue mobility (CTM) were assessed before and after the OC session.Results. Since age varied greatly in the examined group, a correlation analysis of age-related changes of the assessed rhythms was carried out. Only the CTM correlated with age (r=–0,28; p<0,05) in a statistically significant way. The rank dispersion analysis of Kruskal–Wallis also showed statistically significant difference in this indicator in different age groups (p=0,043). With the increase of years, the CTM decreases gradually. After the OC, the CTM, increased in a statistically significant way (p<0,0001). The RCR varied from 5 to 12 cycles/min in the examined group, which corresponded to the norm. After the OC, the RCR has increased in a statistically significant way (p<0,0001), the MNP has also increased (p<0,0001). The initial heart rate in the subjects varied from 56 to 94 beats/min, and in 15 % it exceeded the norm. After the OC the heart rate corresponded to the norm in all patients. The heart rate and the respiratory rate significantly decreased after the OC (р<0,0001).Conclusion. The described biorhythm changes after the OC session may be indicative of the improvement of the nervous regulation, of the normalization of the autonomic balance, of the improvement of the biomechanical properties of body tissues and of the increase of their mobility. The assessed parameters can be measured quickly without any additional equipment and can be used in order to study the results of the OC.

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