scholarly journals Correlation matrix for revealing informative indicators of functional state estimation, anaerobic working capacity and physical readiness of highly qualified athletes

2018 ◽  
Vol 20 (2) ◽  
pp. 154-159
Author(s):  
T M Brook ◽  
P A Terekhov ◽  
A A Nikolaev
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Functional State ◽  
Anaerobic Threshold ◽  
Aerobic Capacity ◽  
Pulmonary Ventilation ◽  
Prognostic Significance ◽  
The Body ◽  
Working Capacity ◽  
Relative Level

The possibility of revealing informative markers for assessing the functional state and special working capacity of highly skilled multihorts by means of correlation analysis is considered. It is established that the values of the relative and explosive strength of most muscle groups have prognostic significance as a criterion for their physical fitness. The priority of extensor musculature for achieving high sports results in athletics decathlon is proved. It was found that the parameters of the anaerobic threshold, determined by the heart rate, are more related to the athletic result than the anaerobic threshold values determined by the amount of oxygen consumed. Five groups of indicators were distinguished, which had a strong relationship with the athletic result in the decathlon. The first group included markers that characterize the aerobic capacity of the body: the relative level of maximum oxygen consumption, anaerobic threshold, pulmonary ventilation, respiratory coefficient and vital capacity of the lungs. The second group consisted of parameters reflecting the rate of recovery of aerobic capacity of the body within 2 minutes after the end of physical activity: heart rate, respiratory, oxygen consumption and pulmonary ventilation. The third group included the values of energy metabolism in the central, right and left temporal regions of the brain, where the higher centers of the motor and sensory systems are located, as well as the centers of the descending pyramidal tract responsible for performing arbitrary movements. The fourth group included indicators characterizing the background mental state, speed and accuracy of the attentional set-shifting, psycho-emotional stability. The fifth group consisted of parameters of the analysis of the heart rate, which reliably correlated with the sum of points in the decathlon.

THE USE OF HEART RATE TELEMETRY FOR DYNAMIC CONTROL OF THE FUNCTIONAL STATE DURING COMPUTER TESTING AND BIOFEEDBACK IN KNOWLEDGE WORKERS

2021 ◽  
Author(s):  
M.M. Nekrasova ◽  
◽  
I.V. Fedotova ◽  
S.A. Polevaya ◽  
Keyword(s):  
Heart Rate ◽  
Functional State ◽  
Work Experience ◽  
Knowledge Workers ◽  
Management Strategies ◽  
Dynamic Control ◽  
The Body ◽  
Biofeedback Training ◽  
Total Power ◽  
Neurohumoral Regulation

Abstract: Introduction. Increasing information loads can lead to the development of professional stress and work-related illnesses in knowledge workers. The development and implementation of modern methods of control and correction of the functional state of employees in the conditions of activity is relevant. The study aims – to explore the dynamics of the functional state of knowledge workers in the conditions of modeling the cognitive load on the computer and during the training on neurofeedback (NFB) based on the parameters of the electroencephalogram (EEG). Materials and methods. 17 researchers (4 men and 13 women aged 22-63 years (34.8±3.4), with an average work experience of 12.1±3.3 years) participated in the study on the basis of voluntary informed consent. Results. A significant increase in the index of the alpha rhythm was shown by 29.4% of the subjects. It was found that the total power of the spectrum of heart rate variability (HRV) is higher, the adaptive risk is lower in the group that successfully passed alpha training (p<0.05). According to the results of continuous personalized heart rate telemetry, the dynamics of the functional state (FS) during the examination was determined for each subject. Conclusion. A significant influence of the state of neurohumoral regulation systems and adaptive reserves of the body on the success of the biofeedback training was established, which is the basis for the development of methodological approaches to the correction of FS, taking into account individual optimal management strategies.

scholarly journals Role of physiological monitoring in educational organizations

2019 ◽  
Vol 72 ◽  
pp. 03005
Author(s):  
Olga Shchkvirina ◽  
Dinamutdin Misirov ◽  
Marina Akopyan ◽  
Irina Loseva
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Functional State ◽  
Initial Period ◽  
Educational Environment ◽  
Convincing Evidence ◽  
Educational Process ◽  
The Body ◽  
Objective Criterion ◽  
Functional Capabilities

An indicators analysis of the first-graders functional state and vegetative homeostasis obtained in the initial period of adaptation to the educational environment revealed gender differences in the rates of the adaptation process to new learning conditions. It has been established that girls’ adaptation mechanisms turn on earlier than boys’, with their similar orientation. The article provides an experimental justification of the indicators use legitimacy for heart rate variability to assess the functional state of the body in the acute period of adaptation to the educational environment. The importance of teacher physiological literacy for the optimization of the educational process is substantiated. The results of the study are convincing evidence of the knowledge importance for the physiological foundations of the occurrence and course of physiological and mental processes, stable individual psycho-physiological characteristics for the organization of the learning environment, corresponding to the functional capabilities of the body. This argument is also confirmed by many years of experience among master students key competencies development, which allow using such an objective criterion as the current functional state of the body to ensure, through the joint efforts of parents, teachers, psychologists, and doctors, the correction of the educational environment and psycho-physiological resistance of individual to it. The established differences in the dynamics of heart rate variability indicators for girls and boys can be used to form a health-saving program in school settings.

Body Composition (% Fat) and Heat Stress of Well Conditioned Young Adult Males

1982 ◽  
Vol 26 (6) ◽  
pp. 561-564
Author(s):  
Michael W. Riley ◽  
David J. Cochran ◽  
Arthur J. Soundy
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Young Adult ◽  
Skin Temperature ◽  
Body Fat ◽  
Bicycle Ergometer ◽  
The Body ◽  
Lean Body Weight ◽  
Adult Males ◽  
Young Adult Males

The physiological responses of heart rate, oxygen consumption, sweat loss, rectal temperature and mean skin temperature were monitored as eight well-conditioned young adult males were exposed to effective temperatures of 70°F, 80°F and 90°F. The body fat contents of the subjects ranged from 11.3% to 34%. The subjects pedalled a 300 kilopond meters/minute load on a bicycle ergometer for 25 minutes. Results indicate that body fat or the percent of body fat squared have a statistically significant effect on the dependent variables of oxygen consumption/lean body weight, change in heart rate, core-skin temperature gradient, and oxygen consumption/maximum oxygen consumption.

scholarly journals BODY COMPOSITION AND PARAMETERS OF AEROBIC AND ANAEROBIC WORKING CAPACITY AT SPEED-POWER PHYSICAL EXERCISES

2016 ◽  
pp. 113-117
Author(s):  
Y. I. Brel ◽  
L. A. Budko
Keyword(s):  
Body Composition ◽  
Functional State ◽  
The Body ◽  
Lower Amount ◽  
Control Group ◽  
Working Capacity ◽  
Male Athletes ◽  
Program Complex ◽  
Physical Exercises ◽  
Aerobic And Anaerobic

Objective: to analyze the features of body composition and parameters of aerobic and anaerobic working capacity at speed-power physical exercises. Material and methods. We examined 15 male athletes at the age of 18-20 and 15 young men of the control group. The body composition was evaluated using the parameters of bioimpedance analyzer АВС-01 «Medass», and functional state parameters by the data of the computer program complex «D-test». Results . Higher parameters of muscular and active cellular mass and lower amount of fatty mass in athletes were associated with lower parameters of aerobic working capacity comparing with the control group. Conclusion . The features of body composition and functional state parameters at speed-power physical exercises have been defined.

scholarly journals Physiological Characteristics of Musical Theatre Performers and the Effect on Cardiorespiratory Demand Whilst Singing and Dancing

2020 ◽  
Vol 35 (1) ◽  
pp. 54-58 ◽  
Author(s):  
N Stephens ◽  
Matthew Wyon
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Anaerobic Threshold ◽  
Aerobic Capacity ◽  
Professional Training ◽  
Musical Theatre ◽  
Peak Oxygen Consumption ◽  
Breathing Frequency ◽  
Maximal Aerobic Capacity ◽  
Lactate Levels

AIMS: Musical theatre (MT) combines acting, singing, and dancing within a performance. The purpose of the current study was two-fold: 1) to report on the cardiorespiratory fitness of pre-professional MT dancers, and 2) to examine the cardiorespiratory demand of singing whilst dancing. METHODS: Twenty-one participants (16 females, 5 males; age 20±1.23 yrs; height 169.1±9.24 cm; weight 62.7±10.56) in their final year of pre-professional training volunteered for the study. All participants performed a maximal aerobic capacity test on a treadmill using a portable breath-by-breath gas analyser. Nine participants completed a 4-minute section from Chorus Line twice, singing and dancing and just dancing, in a randomised order whilst wearing the same portable gas analyser. Blood lactate was measured at the end of each trial. RESULTS: Male participants had significantly greater peak oxygen consumption (M vs F, 67.6±2.30 vs 55.6±4.42 mL/kg/min, p<0.001) and anaerobic threshold (% of peak VO2) (54.6±4.04% vs 43.1±3.68%, p<0.001), whilst maximum heart rate and heart rate at anaerobic threshold were similar. The physiological demands of dancing vs singing + dancing were similar, with the exception of the singing + dancing trial having significantly reduced mean breathing frequency and increased lactate (p<0.01). CONCLUSIONS: MT dancers’ aerobic capacity is greater than that observed in other theatre-based dance genres. The observed breathing frequency and lactate differences in the Chorus Line trails could be due to singing reducing breathing frequency, thereby influencing cardiorespiratory recovery mechanics and subsequently blood lactate levels.

External respiration and gas exchange in conditions of maximum load at different levels of the body's aerobic capacity

2021 ◽  
Author(s):  
S.N. Vinogradov
Keyword(s):  
Oxygen Consumption ◽  
Gas Exchange ◽  
Aerobic Capacity ◽  
Maximum Load ◽  
The Body ◽  
External Respiration ◽  
Maximum Oxygen Consumption ◽  
Functional Reserves ◽  
Different Levels ◽  
Increasing Load

The study of the characteristics of the reactions of the links of external respiration and gas exchange at various stages of performing a step-increasing load and at maximum load with various aerobic capabilities of the body was carried out. The data obtained indicate that the level of aerobic capabilities of the body determines the characteristics of the reactions of the links of external respiration and gas exchange at various stages of performing a step-increasing load and at maximum load. Key words: functional reserves of organism, gas transportation system, maximum oxygen consumption, aerobic capacity of organism, gas exchange.

Heart rate as an indicator of oxygen consumption: influence of body condition in the king penguin

2001 ◽  
Vol 204 (12) ◽  
pp. 2133-2144 ◽  
Author(s):  
G. Froget ◽  
P. J. Butler ◽  
Y. Handrich ◽  
A. J. Woakes
Keyword(s):  
Heart Rate ◽  
Oxygen Consumption ◽  
Body Condition ◽  
Active Oxygen ◽  
The Body ◽  
Regression Equations ◽  
Oxygen Pulse ◽  
Rate Of Oxygen Consumption ◽  
The Impact ◽  
The Relationship

SUMMARY The use of heart rate to estimate field metabolic rate has become a more widely used technique. However, this method also has some limitations, among which is the possible impact that several variables such as sex, body condition (i.e. body fat stores) and/or inactivity might have on the relationship between heart rate and rate of oxygen consumption. In the present study, we investigate the extent to which body condition can affect the use of heart rate as an indicator of the rate of oxygen consumption. Twenty-two breeding king penguins (Aptenodytes patagonicus) were exercised on a variable-speed treadmill. These birds were allocated to four groups according to their sex and whether or not they had been fasting. Linear regression equations were used to describe the relationship between heart rate and the rate of oxygen consumption for each group. There were significant differences between the regression equations for the four groups. Good relationships were obtained between resting and active oxygen pulses and an index of the body condition of the birds. Validation experiments on six courting king penguins showed that the use of a combination of resting oxygen pulse and active oxygen pulse gave the best estimate of the rate of oxygen consumption V̇O2. The mean percentage error between predicted and measured V̇O2 was only +0.81% for the six birds. We conclude that heart rate can be used to estimate rate of oxygen consumption in free-ranging king penguins even over a small time scale (30min). However, (i) the type of activity of the bird must be known and (ii) the body condition of the bird must be accurately determined. More investigations on the impact of fasting and/or inactivity on this relationship are required to refine these estimates further.

scholarly journals CHARACTERISTICS OF VARIABILITY OF THE HEART RHYTHM IN PRESCHOOL CHILDREN WITH DIFFERENT SPEECH DISORDERS IN ARCTIC

2019 ◽  
Vol 5 (2) ◽  
pp. 45-54
Author(s):  
I. V. Kalashnikova ◽  
A. N. Nikanov
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Preschool Children ◽  
Functional State ◽  
Speech Disorders ◽  
The State ◽  
Educational Process ◽  
The Body ◽  
Polar Night ◽  
Murmansk Region

The Murmansk region is characterized by a number of specific climatic and geographical features: a polar night, a long snowy period, an unstable geo-heliophysical setting. All of the above factors have a negative impact on children with disabilities. The article describes the application of the method of analysis of heart rate variability to assess the dynamic changes in the functional state of the body of preschool children with general speech underdevelopment, as well as with stuttering. The work was carried out on the Kola Peninsula in the period of the exit from the «polar night», when exacerbations of somatic diseases are most often recorded in children, and there is a decrease in the immunological reactivity and adaptation potential. The main purpose of this work was to conduct research on the selection of methods for the functional diagnosis of a child’s body in the Kola North to track the state of the state during the educational process on the basis of a preschool institution during the most unfavorable periods. Functional diagnostics included weekly dynamic measurements of the functional status of children of both groups on a non-invasive cardiac rhythmograph, followed by mathematical processing of the main cardiorhythmographic parameters. The use of heart rate variability analysis makes it possible to identify differences in the functional state of preschool children with various speech disorders associated with the nosological structure of the defect. In addition, the use of this method allows you to track changes in the state of children in the course of the educational process in preschool institutions and to adjust the flow of information, taking into account the individual characteristics and adaptive capacities of children with speech disorders.

scholarly journals Analysis of indicators of short recording of heart rate variability in comorbid patients with non-communicable diseases

2021 ◽  
Vol 25 (2(98)) ◽  
pp. 82-88
Author(s):  
G. Nevoit ◽  
M. Potiazhenko
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Spectral Analysis ◽  
Functional State ◽  
Spectral Power ◽  
Modern Science ◽  
Communicable Diseases ◽  
The Body ◽  
Non Communicable Diseases ◽  
Comprehensive Examination

The issues of clinical significance and possibilities of assessing the indicators of variation pulsometry measurement and spectral analysis of a short recording of heart rate variability are highlighted in the article. This is necessary as an objective justification for the subsequent assessment of the functional state of the body and a comprehensive examination of comorbid patients for non-communicable diseases.The aim of the study was to assess the clinical and diagnostic value of a short recording of heart rate variability in comorbid patients with non-communicable diseases in order to increase the effectiveness of measures for their prevention and treatment in Ukraine by improving their diagnosis and prevention through the introduction of modern science-intensive technologies into medical practice.Material and methods. 174 comorbid patients with non-communicable diseases were examined by registering a short record of variability on the hardware-soft-ware complex Poly-Spectrum (Neurosoft, Russia) and the analysis of the results was done. The patients were divided into three groups depending on the degree of comorbidity.Results. Significant differences in spectral analysis and variation pulsometry measurements were established in patients with non-communicable diseases, depending on the degree of comorbidity.Conclusions. The expediency of using the method of short recording of heart rate variability in a comprehensive examination of comorbid patients has been established. The indicator of the total spectral power of the heart rate can be recommended for use as an additional independent predictor of the severity of comorbid pathology and assessment of the functional state.

scholarly journals The influence of cycling on the functional state of young athletes 14-15 years old

2020 ◽  
pp. 148-152
Author(s):  
Maryna Prudnikova
Keyword(s):  
Heart Rate ◽  
Functional State ◽  
Vital Capacity ◽  
Physical Exertion ◽  
The Body ◽  
Primary Data ◽  
Mountain Bike ◽  
Young Athletes ◽  
Significant Difference ◽  
Respiratory Systems

At present, due to the constant growth of sports results and intensified competition at competitions of various levels in cycling (MTB), the problem of adaptation of the body to specific physical loads is becoming urgent As you know, the most violent processes in the body of a young man occur in the period from 13 to 15 years old, where all the functions and systems of a young body under the influence of physical exertion are of particular importance. Many works have shown that at a young age it is impossible to predict sports results in a chosen sport without taking into account functional characteristics. The article presents the indicators of the cardiovascular and respiratory systems of the body of young athletes 14-15 years old, who specialize in mountain bike. Under the influence of specific physical loads, changes in the functional state of young athletes of 14-15 years old in the basic, pre-competitive and restorative mesocycles were determined. The aim of the work was to determine the changes in the work of the cardiovascular and respiratory systems of the organism of young athletes 14-15 years old, specializing in mountain bike. A significant difference was found in the indicators of heart rate, maximum oxygen consumption, vital capacity of the lungs in the recovery and maintenance microcycles of the recovery mesocycle. The statistical difference was determined in terms of systolic and diastolic blood pressure (t=2.61; t=2.73; p<0.05), heart rate (t=2.51; p<0.05), vital capacity of the lungs (t=2.28; p<0.05) young athletes 14-15 years old in the recovery and maintenance microcycles of the recovery mesocycle relative to the primary data.

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