The Study On The Relationship Between Heart Rate Variability And Sleep Quality

Purposes:In this study,measurements are simultaneous with sleep EEG,EMG,EOG,and heart rate variability to find the correlation between indicators of sleep stages and sleep quality index and heart rate variability and to give targeted recommendations for the athletes about the sleep problems.Object:The subjects of the study include ten persons with five elite athletes and ordinary athletes,aged 17-25.Each person is measureed for two times,the more complete data will be used..In order not to interfere the athletes with normal sleep,the test sites were residing in.Method:The test content include EEG(Electroencephalography),EOG (electro-oculogram),EMG(electromyogrm) and heart rate.To collected the data Of three leads with RM6240 signal acquisition system,to get the heart rate with the POLAR watch.The method is to get the whole night data of diffirent stages of EEG and heart rate varibility,using the software of Polar ProTrainer 5 to analyze the HRV data.Then analyzed the two sets of data,obtaining the correlation coefficient.The main application of indicators are PQSI,Sleep latency,Sleep efficiency,S3+S4/SUM, REM/SUM.Result:Frequency-domain indexes of heart rate variability with HF increases when the deep sleep time increases,the LF/HF decreases when the deep sleep time increases.2.When the quality of sleep is higher, the HF is higher,the LF/HF is lower.3.The conclusion of the study is that measurement of HRV can be used to replace the EEG equipment,reflect the sleep quality to some extent.The main indexes are LF/HF and HF. Conclusion:1.PSQI can response the sleep quality of subjects to a certain extent,However,there is some error from the subjective effects.2.The heart rate variability indicator Synchronized with the sleep do not have significant phases,it can be divided into the NREM phase and REM significantly related to the indicator of the percentage of time of the depth of sleep.The indicator of heart rate variability in LF/HF can be used to response the quality of sleep.