scholarly journals THE ASSESSMENT OF EMOTIONAL STRESS UNDER COGNITIVE LOAD IN MALES WITH A DIFFERENT LEVEL OF PHYSICAL ACTIVITY

2020 ◽  
Vol 13 (1) ◽  
pp. 102-111
Author(s):  
Ivan Borisovich Sivachenko ◽  
Dmitrii Stanislavovich Medvedev ◽  
Anna Nikolaevna Pavlova
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Blood Flow ◽  
Cognitive Load ◽  
Information Technologies ◽  
Vascular Tone ◽  
Moderate Physical Activity ◽  
Continuous Increase ◽  
Functional Changes ◽  
Different Levels

Background. In view of the continuous increase in the importance of information technologies in all spheres of society, the problem of the effect of significant cognitive loads that accompany information stress becomes extremely urgent. The article presents an analysis of studies (2018–2019) on resistance to cognitive loads in males with different levels of physical activity. Aim. The article aims to evaluate the dynamics of psychophysiological reactions to cognitive load in males with different levels of physical activity. Materials and methods. Regulatory mechanisms were assessed using the index of functional changes. The simulated load consisted in the Gorbov–Schulte table to be made in the conditions of time deficit, increased motivation and interference. Continuous recording of vascular tone, vascular blood flow, heart rate, electrical skin activity was performed. It is established that a different level of physical activity is specifically associated with the adaptation of a person to a significant cognitive load. Results. The dynamics of skin electrical activity, heart rate, vascular tone and vascular blood flow in people with moderate physical activity reflects optimal reactions to load. Conclusion. Persons systematically involved in physical activity in these conditions have a higher adaptive capacity of the vascular part in comparison with professional athletes and people not engaged in physical activity.

Children’s Heart Rates during Physical Education Lessons: A Review

1996 ◽  
Vol 8 (3) ◽  
pp. 215-233 ◽  
Author(s):  
Gareth Stratton
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Physical Education ◽  
Vigorous Physical Activity ◽  
Moderate Physical Activity ◽  
Physical Educators ◽  
Vigorous Activity ◽  
Education Curriculum ◽  
Maximum Heart Rate ◽  
Physically Active

Physical educators have purported to teach children to be physically active and to promote their fitness. To achieve these goals, children should regularly experience moderate-to-vigorous physical activity (MVPA) during physical education lessons. For the purposes of this review, moderate physical activity is that which elicits a heart rate of 50% of maximum heart rate reserve (MHRR), moderate-to-vigorous activity elicits 60% of MHRR, and vigorous activity elicits 75% of MHRR. Duration criteria were set at 50% of lesson time or 20 min. The majority of lessons described in previous reports failed to achieve these criteria, although problems were noted in method and analyses of data. Lessons with physical activity as a direct goal have been successful in increasing MVPA. A greater focus on physical activity is required in the planning and delivery of physical education lessons if the physical activity and fitness goals of the physical education curriculum are to be met.

scholarly journals A unified platform for outcome measures and exergames with 3D accelerometry

2015 ◽  
Author(s):  
Timur Nuritdinow ◽  
Christian Lederer ◽  
Martin Daumer
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Clinical Trials ◽  
Oxygen Consumption ◽  
Energy Expenditure ◽  
Exercise Therapy ◽  
Moderate Physical Activity ◽  
Large Set ◽  
Controlled Clinical Trials ◽  
Technology Platform

Mobile accelerometry is more and more being used in clinical trials as a tool to measure outcomes related to physical activity. However, it is still difficult to integrate exercise therapy in controlled clinical trials. We want to explore the option to use a unified platform to both measure outcome and prescribe and monitor exercise therapy using the actibelt technology platform. We present a prototype based on the actibelt platform that allows to use the wearable device as a mouse controller for a large set of potentially interesting games. Playing an exergame a person is encouraged to increase its level of daily motion while engaging in an activity that is perceived as interesting and fun, thus, providing an intrinsic motivation. Studies suggest that exergaming can be compared to light or moderate physical activity considering the heart rate, oxygen consumption and energy expenditure.

Heart contractility at pressure loads induced by ischemia of exercised muscle in humans

1982 ◽  
Vol 52 (2) ◽  
pp. 340-345 ◽  
Author(s):  
F. Bonde-Petersen ◽  
Y. Suzuki
Keyword(s):  
Heart Rate ◽  
Blood Flow ◽  
Vascular Tone ◽  
Forearm Blood Flow ◽  
Systolic Time Intervals ◽  
Bicycle Exercise ◽  
Time Intervals ◽  
Control Situation ◽  
Systolic Time ◽  
Heart Contractility

During one- or two-leg bicycle exercise in three subjects the exercised limb(s) were made ischemic by occlusion cuffs inflated to 300 Torr immediately at, or 30 s before, end of 7-min exercise and kept inflated for 3 min of recovery. Mean arterial pressure (MAP) remained elevated during occluded recovery, whereas heart rate (HR) and forearm blood flow tended to recover at the same rate as in the control situation without occlusion. Systolic time intervals (STI) were negatively correlated to HR in the interval 60–120 beats/min. In spite of a variation in afterload of 30 Torr induced by occlusion the correlation between HR and STI fitted the same equations. The involvement of different size of muscle mass did not change these relationships. The elevation of MAP during ischemia of exercised muscles is due to an increased vascular tone reflexly induced from muscle chemoreceptors and not cardiac in origin. The results also demonstrate that heart contractility adapts well to the induced afterload.

scholarly journals Impact of Fitness Status on the Optically Measured Hemodynamic Indexes

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
B. I. Kuznik ◽  
Y. N. Smolyakov ◽  
S. O. Davydov ◽  
N. N. Tsybikov ◽  
O. G. Maksimova ◽  
...  
Keyword(s):  
Physical Activity ◽  
Blood Flow ◽  
Speckle Pattern ◽  
Cardiovascular Fitness ◽  
Laser Speckle ◽  
Physical Load ◽  
Moderate Physical Activity ◽  
Fitness Level ◽  
Sport Activities ◽  
Cutaneous Blood

The physiological characteristics of skin blood flow can be described in terms of the hemodynamic indices (HI). The HI is derived from the laser speckle characteristics, which are governed by the cutaneous blood flow. A miniaturized dynamic light-scattering sensor was used to measure the speckle pattern from the finger root. Three groups of subjects from 15 to 25 years of age were tested. The first group included subjects who are actively engaged in sport activities; the second group included subjects with low level of physical activity; and the third group included healthy controls with moderate physical activity. The HI parameters were measured prior to and after the performance of a determined physical load. As a marker of cardiovascular fitness (CVF), we used the postload decay rate of HI. We found that the hemodynamic response to the physical load provides a statistically significant correlation with the postload heart rate decay. It was also found that postocclusion increase of the arterial HI is more prominent in the group with higher physical activity. These results indicate that hemodynamic indices can be used as an additional marker for cardiovascular fitness level.

scholarly journals Calorimetry of students’ heart rate during exercises of various intensity

2020 ◽  
Vol 26 ◽  
pp. 00033
Author(s):  
Roman Nagovitsyn ◽  
Elena Chelnokova ◽  
Olga Vaganova ◽  
Zhanna Smirnova ◽  
Maxim Kutepov
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Body Weight ◽  
Simple Calculation ◽  
Gender And Age ◽  
Rate Calculation ◽  
Heart Contraction ◽  
Level Of Training ◽  
Study Participants ◽  
Different Levels

The purpose of the study: based on data analysis, to develop a formula for calorimetry of students’ heart rate during physical activity and experimentally prove the effectiveness of its application in the training process. The study participants (n=98) were divided by body weight into groups (n=7), regardless of gender and age (20-25 years). Various mobile devices with the function of heart rate calculation and monitoring of kilocalories burning were used in the implementation of control physical activities at different levels of intensity. Analysis of the obtained calorimetric data for each group and the level of training intensity allowed us to identify patterns and develop a formula based on them for an affordable and simple calculation of kilocalories. N=0.00168-0.098/P, where N is the number of kilocalories burned for 1 heart contraction per 1 kilogram of body weight, P is the heart rate in physical training (beats per minute). An experimental study confirmed the effectiveness of using the author’s formula of heart rate calorimetry for the accuracy and uniformity of kilocalories burning in students when they exercise aerobic physical activity.

Steps That Count: Physical Activity Recommendations, Brisk Walking, and Steps Per Minute—How Do They Relate?

2014 ◽  
Vol 11 (3) ◽  
pp. 502-508 ◽  
Author(s):  
Julian D. Pillay ◽  
Tracy L. Kolbe-Alexander ◽  
Karin I. Proper ◽  
Willem van Mechelen ◽  
Estelle V. Lambert
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Aerobic Fitness ◽  
Moderate Physical Activity ◽  
Brisk Walking ◽  
Convenience Sample ◽  
Physical Activity Recommendations ◽  
Health Enhancing Physical Activity ◽  
Age And Sex ◽  
Activity Recommendations

Background:Brisk walking is recommended as a form of health-enhancing physical activity. This study determines the steps/minute rate corresponding to self-paced brisk walking (SPBW); a predicted steps/minute rate for moderate physical activity (MPA) and a comparison of the 2 findings.Methods:A convenience sample (N = 58: 34 men, 24 women, 31.7 ± 7.7yrs), wearing pedometers and a heart rate (HR) monitor, performed SPBW for 10 minutes and 5 indoor sessions, regulated by a metronome (ranging from 60–120 steps/minute). Using steps/minute and HR data of the trials, a steps/minute rate for MPA was predicted. Adjustments were subsequently made for aerobic fitness (using maximal oxygen uptake (VO2max) estimates), age, and sex as possible contributors to stepping rate differences.Results:Average steps/minute rate for SPBW was 118 ± 9 (116 ± 9; 121 ± 8 for men/women, respectively; P = .022); predicted steps/minute rate for MPA was 122 ± 37 (127 ± 36; 116 ± 39 for men/women, respectively; P < .99) and was similar to steps/minute rate of SPBW (P = .452), even after adjusting for age, sex, and aerobic fitness.Conclusion:Steps/minute rates of SPBW correlates closely with targeted HR for MPA, independent of aerobic fitness; predicted steps/minute rate for MPA relates closely to steps/minute rates of SPBW. Findings support current PA messages that use the term brisk walking as a reference for MPA.

Patterns of Physical Activity in 9–10-Year-Old American Children as Measured by Heart Rate Monitoring

2000 ◽  
Vol 12 (1) ◽  
pp. 101-110 ◽  
Author(s):  
Linda E. Kelly
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Health Benefits ◽  
Moderate Physical Activity ◽  
Activity Levels ◽  
Heart Rate Monitoring ◽  
Physical Activity Levels ◽  
American Children

Physical activity levels of 40 American children, 9–10 years old, were assessed by 12-hrs of continuous heart rate monitoring over the 7 different days of the week. Most participants (92.5%) accumulated 30 min of moderate physical activity on most days of the week. A little more than half (52.5%) reached this level for 7 days of the week. Less than one third (27.5%) accrued the greater health benefits of physical activity by being active for 30 sustained minutes 3 times per week. A slightly larger percentage (35%) obtained 30 min in 10-min or greater sustained bouts 5 or more days of the week. Boys (95.2%) were 6.4% more active in accumulating 30 min or more on most days of the week than girls (88.9%). Boys (40.8%) also obtained 30 min of physical activity in sustained bouts of 10-min or greater at a higher percentage than girls (27.7%).

scholarly journals Autonomic control of cardiorespiratory coupling in healthy subjects under moderate physical exercises

2019 ◽  
Vol 8 (4) ◽  
Author(s):  
Anton R. Kiselev ◽  
Ekaterina I. Borovkova ◽  
Margarita A. Simonyan ◽  
Yuri M. Ishbulatov ◽  
Artak Yu. Ispiryan ◽  
...  
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Healthy Subjects ◽  
Coherence Function ◽  
Peripheral Circulation ◽  
Moderate Physical Activity ◽  
Rr Intervals ◽  
Phase Dynamics ◽  
Physical Exercises ◽  
Directional Coupling

Aim of the study is to apply the analysis of phase dynamics to investigation of the coupling patterns between heart rate variability, respiration and peripheral circulation in healthy subjects at rest and after moderate physical exercises. Material and Methods ― 30-minutes electrocardiogram (ECG), photoplethysmogram (PPG) and respiration records were obtained from healthy subjects aged 22±2 (mean ± standard deviation) before and after active Martine Kushelevsky test (20 squats in 30 seconds). The coherence function was estimated between all the signals from each subject, and the phase dynamics modeling was used to detect the directional coupling in high-frequency (HF; 0.14-0.40 Hz) and low-frequency ranges (LF; 0.04-0.14 Hz). Results ― At rest (before the physical activity) no statistically significant couplings were detected between the HF rhythms of respiration and heart rate (RR intervals). For the HF rhythms in respiration and PPG, the influence respirationPPG was detected. No couplings were detected between the LF rhythms. After the moderate physical exercise, predominant direction of the influence was RR intervals  PPG in the LF range and both RR intervals  respiration and PPG  respiration in the HF range. The influence PPG  respiration was delayed by several seconds. Conclusion ― adaptation to the moderate physical activity has led to the decrease in the overall coherence and changes in patterns of directional coupling between the LF and HF rhythms in respiration, heart rate and peripheral circulation. The obtained results confirm nonlinearity and complexity of the coupling patterns in cardiovascular system.

Pedometer Steps-Per-Minute, Moderate Intensity, and Individual Differences in 12- to 14-Year-Old Youth

2011 ◽  
Vol 8 (2) ◽  
pp. 272-278 ◽  
Author(s):  
Susan Vincent Graser ◽  
Alan Groves ◽  
Keven A. Prusak ◽  
Todd R. Pennington
Keyword(s):  
Physical Activity ◽  
Heart Rate ◽  
Individual Differences ◽  
Moderate Intensity ◽  
Moderate Physical Activity ◽  
Moderate Activity ◽  
Heart Rate Monitor ◽  
Activity Intensity ◽  
Intensity Threshold ◽  
The Impact

Background:Researchers have noted both the utility and limitations of using pedometers to measure physical activity (PA). While these unobtrusive devices are widely accepted for their ability to measure accumulated PA, they have been criticized for their inability to measure exercise intensity. However, recent steps-per-minute (SPM) research provides reasonably accurate measures of intensity allowing users to assess time spent at recommended PA levels. Therefore, the purpose of this study was to determine the SPM taken that are associated with moderate physical activity in 12- to 14-year-old youth.Methods:Ninety-three participants (49 boys and 44 girls; ages 12 to 14) walked on a treadmill for 3 minutes at each of 4 different speeds while wearing a pedometer and a heart rate monitor.Results:On average boys and girls reached their moderate activity intensity threshold at 122 SPM and 102 SPM, respectively. However, individual differences must be taken into account when determining appropriate SPM intensities for youth.Conclusions:The impact of individual differences underscores the need to address SPM for moderate intensity individually rather than with a single guideline for everyone at this age.

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