scholarly journals IMPROVING THE TRAINING PROCESS OF 16–17-YEAR-OLD BIATHLETES BY MEANS OF HYPOXIC-HYPERCAPNIC EXPOSURES AND CONTROL OF CHANGES IN THE PREMORBID CONDITION OF THE CARDIOVASCULAR SYSTEM IN THE BASIC STAGE OF SPORTS PREPARATION

2020 ◽  
Vol 20 (2) ◽  
pp. 14-21
Author(s):  
D Maleev ◽  
E Vinogradov ◽  
A Isaev ◽  
V Khodkevich

Aim. The article deals with theoretical and experimental substantiation of the effectiveness of basic and ergogenic (hypoxic-hypercapnic exposures) aids in the preparation of 16–17-year-old biathletes. Materials and methods. The study involved two groups of 16–17-year-old biathletes. All athletes underwent an in-depth medical examination at the beginning of the experiment. Throughout the study, their functional status was assessed by the premorbid index of the cardio-vascular system obtained with the CardioSoft diagnostic system (USA). Results. Hypoxic-hypercapnic exposures in sports training along with the general training program aimed at deve­loping local-regional muscle endurance is a promising approach that can ensure a high level of functional abilities in athletes and improve their sports results. Conclusion. The results of the study contribute to the improvement of the training system for 16-17-year-old biathletes at the basic stage of sports preparation. The study proves that the innovative method proposed is effective for controlling the premorbid state of the cardiovascular system in athletes.

2015 ◽  
Vol 4 (1) ◽  
pp. 102-110
Author(s):  
Пахомов ◽  
A. Pakhomov ◽  
Прасолова ◽  
A. Prasolova ◽  
Козлова ◽  
...  

Using the methods of statistical analysis and methods of multidimensional phase spaces (analysis and calculation of the volume of quasi-attractors matrices mezhattraktornyh distances) studied the behavior of the state vector of the body girls (for example, the behavior of the parameters of the cardiovascular system) with transshirotnyh movements. The differences in the assessment of the dynamic behavior of the parameters of the cardio-vascular system, namely the decrease in quasi-attractors indicates good revitalizing effect two-week stay in a boarding house young children oilman. Analysis matrices mezhattraktonyh distances showed that the motion of chaotic and stochastic centers at latitude movements somewhat different girls: mezhattraktornye distance when driving chaotic center upon arrival to rest down, after a two-week vacation, it becomes even more, to return to the city of Surgut is similar to the results for the arrival at rest, indicating the lack of formation of the girls adaptive mechanisms, as well as a significant tension of regulatory processes and the degree of mismatch of functional systems at transshirotnyh movements.


2021 ◽  
Vol 25 (2) ◽  
pp. 108-113
Author(s):  
Amir Vazini Taher ◽  
Ratko Pavlović ◽  
Shahram Ahanjan ◽  
Iryna Skrypchenko ◽  
Marko Joksimović

Background and Study Aim. Athletic jumps are specific cyclically-acyclic movements that despite the good performance of the techniques require from competitors a high level of motor, specific-motor and functional abilities. The aim of this study was to examine the response effect of vertical and horizontal plyometric training on explosive capacity and kinetic variables in long jump athletes. Material and Methods. The participants of this study were twenty professional jumpers (22.5 ± 4.2 years; 178.4 ± 9.8 cm; 70.3 ± 7.6 kg) who were divided into two groups: experimental (plyometric training) and control (standard training). They participated in the last track and field championship in country, moreover, three of them participated in the last Asian games, and one athlete participated in the world track and field championship. The experiments were conducted on June-July 2019 in twenty professional athletes. All tests were performed after a standard warm up protocol. The place of camera was always determined wisely around the jumping field to attain best photography. Organizing and controlling the imaging and motor analysis processes were done by a biomechanics expert. Results. Post training results in experimental group showed more improvement in 30 m sprint, vertical jump, horizontal velocity at take-off, and long jump completion, comparing the control group. Significant between group differences in all variables were detected post training. No significant post training improvements in flight time and take off duration were reported in control group. Conclusion. Vertical and horizontal plyometric training protocol was shown to be more effective in promoting improvement in explosive capacity than kinetic variables.


2021 ◽  
Vol 74 (2) ◽  
pp. 202-206
Author(s):  
Mykola V. Trofimov ◽  
Valerii P. Kryshen ◽  
Valentyna Y. Kudryavtseva ◽  
Alla V. Chukhriienko ◽  
Pavlo V. Lyashchenko ◽  
...  

The aim: To determine clinical and endoscopical features of gastroduodenal hemorrhages in elderly patients with concomitant cardio-vascular pathology in a way by studying, main indicators of the immune system for drawing up further tactics. Material and methods: The study included 609 patients with ulcerative gastroduodenal bleeding, complicated by cardio-vascular system pathology in 2017-2019 years. The observed patients were distributed into the groups: I – patients, who received treatment according to the standard system of cardiovascular pathology treatment (n=541), II – “double” therapy (n=68). Control group consists of 20 relatively healthy patients were similar to the research group. Results: Blood lost of a big amount and massive blood lost were noticed in 113 (18.56%±1.58) and 121 (19.87%±1.62) patients respectively. Active bleeding (F I) was revealed in 38 patients (6.24%±0.98), a high risk of hemorrhage relapse was determined in 486 patients (79.80%±1.63). Signs of recent hemorrhage were absent in 85 patients (13.96%±1.40). A high level of pro-inflammatory cytokines IL-6, TNF-α and a low activity of the anti-inflammatory mediator IL-10 define the process activity, their long-term circulation in patients with ulcerative hemorrhages of the gastro-intestinal tract are associated with unfavorable prognosis. In 5 cases conditionally-radical surgical interventions were performed. Palliative surgery – 3 patients (р>0.05). Conclusions: The patients of second group (“double therapy”) with big and massive blood loss was 2.7 times higher than similar indices in patients of the first group (standard therapy). The patients who received “double therapy” had 3.3 times more active hemorrhage percentage than the patients who received standard therapy (р<0.05).


Author(s):  
M. V. Belova ◽  
K. K. Ilyashenko

Based on examined reports 2010-2014 of the department of acute poisonings treatment at the N.V.Sklifosovsky Research Institute of Emergency Medicine and 1197 medical records of in-patients, a general characterization of poisoning by drugs affecting preferably the cardio vascular system is presented. Preparations and their combinations that are the most frequent causes of poisoning are detected; the age and gender structure of patients, poisonings causes and lethality are considered


2020 ◽  
Vol 159 ◽  
pp. 01001
Author(s):  
Sultan Tuleukhanov ◽  
Zhanna Abdrassulova ◽  
Nurdana Salybekova ◽  
Gulzhaina Alpamyssova ◽  
Arina Kenshilik

This study provides examination of cardiovascular system of children who live in Ust-Kamenogorsk, mainly in its environmentally polluted areas as industrial zones and Ulbinsk region. The work focused on studying the age and gender characteristics of the cardio vascular system in children living in environmentally unfavorable conditions of Ust-Kamenogorsk. The study highlighted the role of contamination into the development of many diseases that affect cardiovascular system of children in various age categories. The features of cardiorespiratory system were evaluated by methods of pneumotachometry, variational pulsometry, electrocardiography, Holter daily monitoring of electrocardiography. There was detected a gradual increase in sympathetic regulation of heart rate in boys and humoral regulation in girls aged 9-12 years. It was shown that the resistance of children’s organism to the harmful environmental effects depend on their constitutional features. The increased level of stress also affects the well-being of children, as caused by the unfavourable conditions. The method of daily ECG monitoring revealed an increase in the frequency of elevation ST segment, to a lesser extent its depression, so the incidence of bradycardia is more often than tachycardia.


Molecules ◽  
2021 ◽  
Vol 26 (10) ◽  
pp. 2834
Author(s):  
Nikola Gligorijević ◽  
Dragana Stanić-Vučinić ◽  
Mirjana Radomirović ◽  
Marija Stojadinović ◽  
Urmila Khulal ◽  
...  

Resveratrol is a phytoalexin produced by many plants as a defense mechanism against stress-inducing conditions. The richest dietary sources of resveratrol are berries and grapes, their juices and wines. Good bioavailability of resveratrol is not reflected in its high biological activity in vivo because of resveratrol isomerization and its poor solubility in aqueous solutions. Proteins, cyclodextrins and nanomaterials have been explored as innovative delivery vehicles for resveratrol to overcome this limitation. Numerous in vitro and in vivo studies demonstrated beneficial effects of resveratrol in cardiovascular diseases (CVD). Main beneficial effects of resveratrol intake are cardioprotective, anti-hypertensive, vasodilatory, anti-diabetic, and improvement of lipid status. As resveratrol can alleviate the numerous factors associated with CVD, it has potential as a functional supplement to reduce COVID-19 illness severity in patients displaying poor prognosis due to cardio-vascular complications. Resveratrol was shown to mitigate the major pathways involved in the pathogenesis of SARS-CoV-2 including regulation of the renin-angiotensin system and expression of angiotensin-converting enzyme 2, stimulation of immune system and downregulation of pro-inflammatory cytokine release. Therefore, several studies already have anticipated potential implementation of resveratrol in COVID-19 treatment. Regular intake of a resveratrol rich diet, or resveratrol-based complementary medicaments, may contribute to a healthier cardio-vascular system, prevention and control of CVD, including COVID-19 disease related complications of CVD.


2013 ◽  
Vol 7 (3) ◽  
pp. 4-7
Author(s):  
Aksana Kotava

Background: The determination of relations between the complexity of the cardiovascular system regulation and the com-plexity of the test signal is not a fully solved problem. The elimination of this uncertainty can be done using stochastic test signals and power value which changes are random.Aim of research: To compare the reaction of cardio - vascular system during the deterministic and random loads.Material and methods:In the research,h two types of physical loads were used: the traditional bicycle ergometer test with stepwise increasing load and 3 minutes steps duration and test with a stochastic pseudonormal load values distribution and 30 seconds steps duration. Results: It is established that the average load required to achieve a submaximal heart rate was 509 W for the traditional and 445 W for the stochastic test, respectively. The time of obtained submaximal heart rate during stepwise-increasing load was 7 min., whereas during the stochastic load significantly less - 5min. The results show that the limit of efficiency of the cardio-vascular system during stochastic load test is achieved faster than during deterministic load test.Conclusions: Stress tests using random loads can be useful for the athletes training. Supposedly, the use of stochastic loads must be effective during rehabilitation of patients with cardiovascular diseases, for instance the increasing of the physical load time in each stage can be used in order to reach steady state. Also, the proposed study confirms the perspectives of non-linear and stochastic methods in the diagnosis of the cardiovascular system diseases.


Author(s):  
Nikola Gligorijević ◽  
Dragana Stanić-Vučinić ◽  
Mirjana Radomirović ◽  
Marija Stojadinović ◽  
Olgica Nedic ◽  
...  

Resveratrol is a phytoalexin produced by many plants as a defense mechanism against stress-inducing conditions. The richest dietary sources of resveratrol are berries and grapes, their juices and wines. Good bioavailability of resveratrol is not reflected in its high biological activity in vivo because of resveratrol isomerization and its poor solubility in aqueous solutions. Proteins, cyclodextrins and nanomaterials have been explored as innovative delivery vehicles for resveratrol to overcome this limitation. Numerous in vitro and in vivo studies demonstrated beneficial effects of resveratrol in cardiovascular diseases (CVD). Main beneficial effects of resveratrol intake are cardioprotective, anti-hypertensive, vasodilatory, anti-diabetic, and improvement of lipid status. As resveratrol can alleviate the numerous factors associated with CVD, it has potential as a functional supplement to reduce COVID-19 illness severity in patients displaying poor prognosis due to cardio-vascular complications. Resveratrol was shown to mitigate the major pathways involved in the pathogenesis of SARS-CoV-2 including regulation of the renin-angiotensin system and expression of angiotensin-converting enzyme 2, stimulation of immune system and downregulation of pro-inflammatory cytokines release. Therefore, several studies already have anticipated potential implementation of resveratrol in COVID-19 treatment. Regular intake of resveratrol rich diet, or resveratrol-based complementary medicaments, may contribute to a healthier cardio-vascular system, prevention and control of CVD, including COVID-19 disease related complications of CVD.


2008 ◽  
pp. 677-684
Author(s):  
M Gerová ◽  
F Kristek

Numerous studies concerning the cardiovascular system in SHR often yield controversial data. The background of this diversity has various roots, ranging from different vascular segments or areas studied up to the different age of experimental animals. Our study aimed to follow the BP as an integrated response of vascular system. This approach was justified since stabilized cardiac output in SHR was proved till 1 year of age. The groups of male SHR (aged 3, 5, 9, 17 and 52 weeks) and age-matched Wistar rats were used. Significant basal BP difference between SHR and Wistar rats was found at 9 weeks of age and continued till the age of 52 weeks, reaching 189.6±11.9 mm Hg in SHR and 117.3±6.9 mm Hg in Wistar rats (P<0.01). The significant difference in BP increase to two doses of noradrenaline (0.1 μg and 1 μg) between SHR and control rats was also found at the age of 9 weeks. At 52 weeks the BP increment to two doses of noradrenaline was in SHR 19.7±2.0 mm Hg and 60.5±3.9 mm Hg and in Wistar rats 7.4±1.9 mm Hg and 40.5±3.2 mm Hg (P<0.01). The hypotensive response to acetylcholine (0.1 μg, 1 μg and 10 μg) in SHR was enhanced at 17 weeks of age only and this amplification persisted till the age of 52 weeks. In 52- week-old SHR the hypotensive response to three doses was 69.9±10.2 mm Hg, 87.5±11.8 mm Hg and 103.4±10.6 mm Hg, while in Wistar rats it was 37.4±4.2 mm Hg (P<0.01), 62.3±3.5 mm Hg (P<0.01) and 73.5±2.8 mm Hg (P<0.05). In conclusion, the efficiency of cardiovascular system of SHR to respond to noradrenaline was already enhanced from 9 weeks of age, whereas the response to acetylcholine was not augmented before the age of 17 weeks.


2020 ◽  
Vol 19 (4) ◽  
pp. 14-19
Author(s):  
N Turbasova ◽  
A Bulygin ◽  
I Revnivykh ◽  
N Karpov ◽  
A Elifanov

Aim. The purpose of the study is to establish the level of anxiety and indicators of the cardio-vascular system in athletes of various qualifications. Materials and methods. The study involved 241 athletes aged 14-30 years of various qualifications and sports. To assess personal and situational anxiety, the Spielberger – Khanin state-trait anxiety inventory was used. The obtained indicators of the cardiovascular system were compared with the reference values. Results. For all athletes of various sports, the moderate type of situational and personal anxiety prevailed. Highly skilled athletes distinguished a group of athletes with high situational and personal anxiety. Arterial hypertension in athletes of cyclic sports and martial arts is more physiological in nature. In athletes of speed-strength and reactive-strength sports, myocardial wall is thickened due to fibrotic changes. Conclusion. A different level and type of sports activity affects differently the indicators of the cardiovascular system. It was revealed that the level of anxiety affects the physical preparation of athletes for the competitive period.


Sign in / Sign up

Export Citation Format

Share Document