List of Articles Heart Rate

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  1 - Entropy analysis of heart rate signal during creative thinking
  Golshan Ansari Ataollah Abbasi Ateke Goshvarpour
  Background: Creativity is an important aspect of cognition. Society developing and dominating the various aspects of the world in the shadow of creativity is possible. The impact of creative activity on the brain has been extensively studied, but autonomic nervous syste More

  Background: Creativity is an important aspect of cognition. Society developing and dominating the various aspects of the world in the shadow of creativity is possible. The impact of creative activity on the brain has been extensively studied, but autonomic nervous system (ANS) variability has not been considered much during such activities. This paper investigated the chaotic and nonlinear feature of Heart rate variability (HRV), before and during creativity tasks. Purpose: The aim of this research is to quantify entropy parameters during creative activity, then comparing it with the rest state and considering it as a creativity index. Method: Approximation entropy and fuzzy entropy are two measures that were used for characterize the HRV dynamics during different creativity tasks. Result: comparing the results with the rest state indicated that Mean of entropy values increase similarly with the development of creative activity. In addition, the comparison of each 2 minute segment with the previous segment, shows an increasing pattern at the end of each task. This comparison in task 3 indicates a very incremental changes. Increasing of these entropy values indicates the complexity of HRV during creative thinking. Conclusion: The research results directly show that there is difference between ANS signal in rest state and different levels of creative activity. Analysis The entropy of HRV could be as a new index for assessment of creativity. Manuscript profile
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  2 - The effect of aerobic training with chocolate on aerobic power, resting blood pressure and heart rate
  Zohreh Goya Zahra Negarandeh sepideh dolati Alemeh hariri far
  10.30495/varzesh.2022.1965160.1040
  Introduction: Present study aimed to investigate the effect of aerobic training with chocolate on aerobic power, resting blood pressure and heart rate.Methods: In this quasi- experimental study 40 inactive male selected as sample and divided into four equal groups inclu More

  Introduction: Present study aimed to investigate the effect of aerobic training with chocolate on aerobic power, resting blood pressure and heart rate.Methods: In this quasi- experimental study 40 inactive male selected as sample and divided into four equal groups including 1) aerobic training, 2) chocolate, 3) aerobic training with chocolate and 4) control. During eight weeks, groups 1 and 3 ran on treadmill for three sessions per week and 30 minutes with intensity of 50 – 60 percentage of maximum heart rate in each session and groups 2 and 3 consumed 10 g chocolate daily. Before and after research period, the aerobic power (by cooper running test), resting blood pressure and heart rate were measured. One-way ANOVA, ANCOVA and paired sample t- test were used for statistical analysis of data (P≤0.05). Results: Eight weeks of aerobic training with chocolate significantly increased aerobic power (P=0.02) and decrease systolic blood pressure (P=0.001).Conclusion: It seems that aerobic training combined with chocolate consumption can improve blood pressure and aerobic power in inactive male. Manuscript profile
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  3 - The Effect of Six Weeks of Selected Aerobic Training on Some Physiological Factors in Elderly Men
  Mohsen Khodakaramyan Mehran Ghahramani Nahid Mohammadi Javid Parisa Banaei
  10.30495/varzesh.2021.1918630.1002
  Introduction: Aging is a stage of life that is associated with physiological changes. The aim of this study was to investigate the effect of six weeks of selected aerobic training on some physiological factors in elderly men.Materials and methods: In this quasi-experime More

  Introduction: Aging is a stage of life that is associated with physiological changes. The aim of this study was to investigate the effect of six weeks of selected aerobic training on some physiological factors in elderly men.Materials and methods: In this quasi-experimental and applied study, 48 sedentary male elderly volunteers with the age range of 60 - 70 years were selected as the statistical sample in Gilan-e-Gharb and divided into two groups of aerobic training and control (n= 24, in each group). The training protocol was performed for six weeks, three sessions per week and each session lasted one hour with an intensity of 55% of the maximum heart rate. Aerobic capacity, heart rate, systolic blood pressure, red blood cells and hemoglobin were measured before the study and also 48 hours after the last training session. The Kolmogorov-Smirnov, independent samples t-test and dependent samples t-test were used to analyze the research findings (P≤0.05).Findings: Six weeks of aerobic training had a significant effect on improving aerobic power, heart rate, systolic blood pressure, red blood cells, and hemoglobin in elderly men (P = 0.001).Conclusion: It seems that six weeks of aerobic training can be used to improve cardiovascular risk factors as well as hematological factors in elderly men. Manuscript profile
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  4 - Comparing Individuals with Secure Attachment and Insecure Individuals in their Heart Rate Responses to Attachment-Related Film Clips
  Mana Rashidi mohammad ali Mazaheri vahid nejati Abbas Zabihzadeh
  The aim of this study was to examine heart rate responses to attachment-related film clips in secure attachment individuals and comparing them to those with insecure attachment. The study was a quasi- experimental design. Thirty students aged between 18 and 30 (15 More

  The aim of this study was to examine heart rate responses to attachment-related film clips in secure attachment individuals and comparing them to those with insecure attachment. The study was a quasi- experimental design. Thirty students aged between 18 and 30 (15 students with secure attachment style, 15 students with insecure attachment style) were selected by convenience sampling method. The Adult Attachment Questionnaire (AAQ; Hazan & Shaver, 1987) was used to assess participants’ attachment styles. The heart rate (HR) reactivity of participants was monitored during eight Iranian attachment-related film clips by electrocardiogram (ECG).The results of independent t-test indicated that participants with insecure attachment had significantly lower HR reduction than participants with secure attachment during the three intense emotional weight and negative content film clips. Additionally, participants with insecure attachment had significantly lower HR reduction on the two low emotional weight and positive content film clips than participants with secure attachment. We also found the HR reactivity of individuals with insecure attachment styles was significantly higher than secure individuals during resting phase. The implications of high level of arousal and low level of emotion regulation in individuals with insecure attachment styles were discussed.       Manuscript profile
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  5 - Local Characteristic Decomposition as a Novel Approach to Predict Sudden Cardiac Death in Congestive Heart Failure Patients
  Ali Dorostghol Adel Maghsoudpour Ali Ghaffari Mansour Nikkhah-Bahrami
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  6 - The Effects of Aerobic Training and Green Tea Supplementation on Heart Rate and Blood Pressure among Overweight females
  فاطمه Mohammadi Sijavandi طاهره Bagherpour نعمت الله Nemati
  The use of exercise along with herbal supplements is one of the proposed methods for controlling obesity and the complications of obesity, since there are variety of training programs and plant material. However, their exact efficacy is not yet clearly proven. Therefore More

  The use of exercise along with herbal supplements is one of the proposed methods for controlling obesity and the complications of obesity, since there are variety of training programs and plant material. However, their exact efficacy is not yet clearly proven. Therefore, the aim of this study was to investigate the effects of aerobic training and green tea supplementation on heart rate and blood pressure among overweight. Thirty overweight healthy female subjects were selected in the age range of 35-25 years. Then, after similarization the groups based on body mass index (BMI) and age, they randomly named to one of three groups: aerobic exercise follow supplementation with green tea group (N=10), green tea supplementation group only (N=10), and exercise group were just aerobics (N=10). Aerobic exercises have been done for 7 weeks in 3 times per week and green tea supplementation was consumed during seven weeks in three times a week in the amount of 2 g after meals. Before and after the intervention period, heart rate, blood pressure and weight of the subjects were measured. One-way ANOVA were used. The results showed that systolic blood pressure follow aerobic training program combined with supplementation of green tea significantly reduced. However, heart rate was reduced in the aerobic exercise group only compared to the green tea supplement group Manuscript profile
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  7 - The comparison of Active and Passive Recovery After One Session of Exhaustive Exercise lactate Serum and Heart Rate Level among Runners
  Aَlireza Babaei Mazreno Iman Nazerian Esmat Babaei Mazreno Sedighe Sadat Mohammadi Zarchi
  10.30486/epp.2023.1993726.1021
  Background: Considering the need of athletes to reach normal conditions and prepare for the next activities, the methods of removing lactic acid and reducing the heart rate are very important. The need of athletes to recover and to prepare for the next activities, metho More

  Background: Considering the need of athletes to reach normal conditions and prepare for the next activities, the methods of removing lactic acid and reducing the heart rate are very important. The need of athletes to recover and to prepare for the next activities, methods of disposal lactic acid are important. Method: The purpose of this study was to compare of active and passive recovery after one exhausting exercise (Bruce) in blood lactate and heart rate in male runners. 26 healthy elite men were selected and then randomly divided in two groups of 12 men in active and 14 men in passive group. Before exercise, lactate acid and heart rate were measured, then each runner performed Bruce test so that he became exhausted completely then immediately and after 10 minutes lactate acid and heart rate measured again and analyzed by repeated measures test (p>. /05). Results: Results show that lactate acid and heart rate increase significantly immediately after exercise (p<.05). Changes 10 minutes after active and passive recovery decrease than after exercise but still increased significantly than before exercise.Conclusion: Finding of this study showed that active recovery after an exhaustive training session causes significant Manuscript profile