Heart Rate Variability in the Diagnosis of the Health of Participants in the Educational Process (original) (raw)
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Chronobiology studies the effect of time and biological rhythm on living. Research of control groups aimed at the estimation of how far the functional state of healthy people changes under conditions of long-term flight and long-term stay on the earth will take place. The obtained results on the earth show that the method of HRB analysis, including not only spectral analysis, but also variational pulsometry, autocorrelation analysis, statistical analysis and correlation rhythmography well reveals the main features of the organism reactions at the changes of chronobiological conditions.
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Heart rate variability in student pilots during the flight training: a preliminary report
Bullettin of the Gioenia Academy of Natural Sciences of Catania
Heart rate (HR) indicates the number of beats per minute (bpm) of the heart, while heart rate variability (HRV) indicates the temporal fluctuation of the intervals between adjacent beats (NN). HRV expresses neuro-cardiac activity and is generated by heart-brain interactions and dynamics related to the function of the Autonomous Nervous System (ANS) and other components (body and ambient temperature, respiration, hormones, blood pressure). The flight activity, especially during training, provides for a prolonged state of alert of the student pilot, as well as careful management of the flight and simultaneous planning of the next steps, with attention to the unusual conditions and emergencies that may occur during all various stages. HRV can provide a good reference index for estimating the degree of evolution of the training process of student pilots and a valid tool for some indications of a physiological as well as clinical nature. To investigate this issue, we started a series of ...
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Fluctuations in autonomic cardiovascular regulation during exposure to high altitude may increase the risk of heart at-tack during waking and sleep. This study compared heart rate variability (HVR) and its components during sleep at low altitude and after 30- 41 hours of acclimatization at high altitude (3480 m) in five mountain marathon runners con-trolled for diet, drugs, light-dark cycle and jet lag. In comparison to sea level, RR-intervals during sleep at high altitude decreased significantly (P < 0.001). The significant increase in sympathetic autonomic cardiovascular modulation at high altitude protects against excessive oxygen deprivation during sleep. Increases in R-R intervals can require longer periods of acclimatization at 3480 m to mitigate the effects of altitude/hypoxia on sympathetic tone, thus reducing car-diovascular distress at rest during waking and sleep and probably before during and after athletic performance at alti-tude.
A preliminary study on the effect of age and heart rate on the short-term heart rate variability
IOSR Journals , 2019
Reduced heart rate variability (HRV) is associated with poor prognosis in diseases and healthy population. HRV is also influenced by physiological factors like age, gender, ethnic origin as well as various diseases.This study aims to establish the normal value of heart rate variability of subjects of Imphal-East, Manipur and also to see if there is any effect of age and heart rate on the HRV. Study included 100 subjects (66 males and 34 females) which was grouped into 2 according to age: group A (19-<40 years) and group B (>40-60 year). HRV analysis was done using the Lab Chart Prov8.1.13 with HRV module version 2.0; AD Instruments, Australia). Time-domain (SDNN and RMSSD) and frequency-domain (LF, HF and LF/HF ratio) were estimated. Comparison of variables between the two groups and also between the males and females were done using independent t-test. Correlation of HRV with age and heart rate were made using Pearson correlation test. Comparison of HRV indices between the groups are found to be statistically significant in all the variables except the LF/HF ratio. The SDRR, RMSSD, LF, HF showed statistically significant negative correlation with age except LF/HF. The HF shows significantly negative correlation with heart rate while the LF/HF shows positive correlation with heart rate which was statistically significant.We found that there is a negative correlation between age and HRV. We also observed inverse correlation between HF and heart rate, and a positive correlation between LF/HF ratio and heart rate.