The Gender Effects of Heart Rate Variability Response during Short-Term Exercise using Stair Stepper from Statistical Analysis

Author(s):  
Nor Aziyatul Izni Mohd Rosli ◽  
Mohd Azizi Abdul Rahman ◽  
Malarvili Balakrishnan ◽  
Takashi Komeda ◽  
Saiful Amri Mazlan ◽  
...  

This study is aimed to explore the Heart Rate Variability (HRV) response during short-term exercise by stair stepper and to compare the finding between young healthy male and female subjects. The responses were statistically analyzed by applying independent-samples t-test statistical method. The calculation of Coefficient of Variation (CoV (%)) and the slope of the linear regression is used to assess the steadiness of the HRV. Furthermore, the results also demonstrated that female subjects had greater significant p-value of RMSSD feature and significance p-value in a LF feature is greater in male. Thus, the ongoing results demonstrated that males have the sympathetic drive and females have predominant parasympathetic drive using short-term exercise by stepper. Thus, the experiment results indicate the suitability of developing rehabilitation devices in the field of Autonomic Nervous System (ANS), research, control system and rehabilitation enginering, which may help to isolate males and females.

2020 ◽  
Author(s):  
Baolin He ◽  
Wenyu Li ◽  
Xiaotong Zhang ◽  
Yanan Wu ◽  
Jing Liu ◽  
...  

Abstract Background: Frequent cessations of respiration can greatly increase the prevalence rate of arrhythmia. It has been confirmed that cardiac activity is regulated by autonomic nervous system (ANS). And heart rate variability (HRV) is widely used as a method to evaluate the function of ANS. Therefore, we analyzed whether apnea can affect the balance and normal function of ANS using short-term HRV indices. Methods: Forty-five healthy subjects were asked to breathe normally and hold their breathing to simulate 10 times apnea. Thirty-six patients from the dataset of a sleep laboratory for the diagnosis of sleep disorders with 10 times apnea were included in analysis. We calculated short-term HRV indices of subjects in normal respiratory and apneic states, respectively. Results: Compared with normal respiratory state, respiration cease would lead to the values of the mean-RR, nLF, LF/HF, and α1 were significantly increase whereas the values of rMSSD and nHF were significantly decrease. Conclusions: Cessations of respiration would lead to an imbalance in function of ANS, as well as an increase in fractal characteristics of the heart. These changes in physiological state are likely to induce and cause the occurrence of arrhythmia, which is regulated by ANS.


2013 ◽  
Vol 1 (1) ◽  
pp. 17-19
Author(s):  
Kumar Sai Sailesh ◽  
Padmanabha Padmanabha ◽  
Jobby Abraham ◽  
Jose Angel ◽  
Mukkadan J.K

The present study was undertaken with an objective to observe the effect of sleep duration on spo2 and pulse rate in males and females and to create awareness among the general population to improve the quality of life. The present study has been performed at Little Flower Medical Research Centre, Angamaly, Kerala, India. A total of two hundred and twenty two healthy male and female college students, with mean age 18.55 ± 0.94 were participated voluntarily in the medical camp comprising 110 males and 112 females. Two investigators of our study recorded Spo2 and pulse rate by using pulse oximeter from the students at the same time. The participants were grouped into two groups, those who sleep more than seven hours and those who sleep for less than seven hours and their spo2 pulse rate were compared. The analysis of data was done by SPSS 20.0. Independent sample t test is used for data analysis. Spo2 is equal in both the groups. However pulse rate is slightly lower in the students who sleep less than seven hours. However this is not statistically significant (P value 0.372). Our study suggests that Pulse rate is slightly lower in the students whose sleep duration is less. No significant change is observed in spo2 in our study. Hence this study merits to continue with higher sample size.


2021 ◽  
Vol 18 (3) ◽  
pp. 05-09
Author(s):  
Ayesha Anjum ◽  

Background: Bleeding time is a laboratory test to assess the platelet function. It is dependent on various factors like function of platelets and pathway of coagulation. Clotting time is the time required for a sample of blood to clot in vitro under standard conditions. It is known from previous studies that there is a difference in the bleeding time and clotting time among males and females. The exact reasons for such differences have been postulated, but are insufficient. Therefore the aim of this study is to study and compare the gender differences in bleeding time and clotting time in young male and female subjects. Aims and objectives: The aim of this study is to determine and compare the differences in bleeding time and clotting time in young adult male and female subjects. Materials and Methods: This study was done in the Department of Physiology, Raichur Institute of Medical Sciences, Raichur. Sixty medical students studying in first year M.B.B.S, were selected for the study, out of which thirty were males, and thirty were females. Bleeding time was determined by Duke’s method and Clotting time was determined by Wrights Capillary tube method. Data was analysed using SPSS software. Unpaired ‘t’ test was used for comparing the values. p value less than 0.05 was considered significant. Result: The mean value of bleeding time in males was found to be,127.69±51,02 and in females it was 133.28±44.30. The mean of the CT in males was 212.18±60 and in females it was found to be 257.16±61.00.The mean BT and CT was significantly higher in females as compared to the males. Conclusion: It was found that there are differences in bleeding time and time in males and females, BT and CT were statistically more in females as compared to females.


1980 ◽  
Vol 46 (1) ◽  
pp. 123-130 ◽  
Author(s):  
Sandra F. Baldwin ◽  
Theodore Clevenger

This study was carried out to determine whether over-all heart rate and heart-rate arousal pattern ate similar for 10 male and 10 female speakers and in speaking situations with both a large as well as a small audience. Equal numbers of male and female subjects were exposed to normal-sized audiences of 21 and very small audiences of 3 during a short impromptu speech, and their heart rates monitored continuously before, during, and after speaking. With limited exception, patterns of heart-rate increment corresponded with those established in previous studies, although females conformed less closely to established patterns. Females experienced greater increment, on the average, than males, and their patterns of arousal differed in certain minor details. Before a small audience slightly greater increments were elicited than before a normal audience, and there were some indications that males and females responded differently to the two speaking situations.


Diagnostics ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 1104
Author(s):  
Jakub S. Gąsior ◽  
Bartosz Hoffmann ◽  
Luiz Eduardo Virgilio Silva ◽  
Łukasz Małek ◽  
Andrew A. Flatt ◽  
...  

Monitoring of markers reflecting cardiac autonomic activity before and during stressful situations may be useful for identifying the physiological state of an athlete and may have medical or performance implications. The study aimed to determine group and individual changes in short-term (5 min) and ultra-short-term (1 min) heart rate (HR), respiratory rate (RespRate), and time-domain heart rate variability (HRV) parameters during sympathetic nervous system activity (SNSa) stimulation among professional endurance athletes. Electrocardiographic recordings were performed in stable measurement conditions (Baseline) and during SNSa stimulation via isometric handgrip in 12 elite modern pentathlonists. Significant increases in short-term HR and decreases in time-domain HRV parameters with no changes in RespRate were observed during SNSa stimulation. Significant differences were observed between Baseline (all minutes) and the last (i.e., 5th) minute of SNSa stimulation for ultra-short-term parameters. Analysis of intra-individual changes revealed some heterogeneity in responses. The study provides baseline responses of HR, RespRate, and time-domain HRV parameters to SNSa stimulation among elite pentathlonists, which may be useful for identifying abnormal responses among fatigued or injured (e.g., concussed) athletes. More attention to individual analysis seems to be necessary when assessing physiological responses to sympathetic stimuli in professional endurance athletes.


2014 ◽  
Vol 2 (1) ◽  
Author(s):  
Kumar Sai Sailesh ◽  
Padmanabha Padmanabha ◽  
Jobby Abraham ◽  
Jose Angel ◽  
Mukkadan J.K

The present study was undertaken with an objective to observe the effect of sleep duration on spo2 and pulse rate in males and females and to create awareness among the general population to improve the quality of life. The present study has been performed at Little Flower Medical Research Centre, Angamaly, Kerala, India. A total of two hundred and twenty two healthy male and female college students, with mean age 18.55 ± 0.94 were participated voluntarily in the medical camp comprising 110 males and 112 females. Two investigators of our study recorded Spo2 and pulse rate by using pulse oximeter from the students at the same time. The participants were grouped into two groups, those who sleep more than seven hours and those who sleep for less than seven hours and their spo2 pulse rate were compared. The analysis of data was done by SPSS 20.0. Independent sample t test is used for data analysis. Spo2 is equal in both the groups. However pulse rate is slightly lower in the students who sleep less than seven hours. However this is not statistically significant (P value 0.372). Our study suggests that Pulse rate is slightly lower in the students whose sleep duration is less. No significant change is observed in spo2 in our study. Hence this study merits to continue with higher sample size.


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