Indian Journal of Sleep Medicine

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VOLUME 6 , ISSUE 1 ( January-March, 2011 ) > List of Articles


Cardiac autonomic activity in young adults with short sleep

Pushpa Krishna, Vishal V. Navekar, S. Shwetha

Keywords : sleep, heart rate variability (HRV), cardiac autonomic activity, low frequency power (LF), high frequency power (HF)

Citation Information : Krishna P, Navekar VV, Shwetha S. Cardiac autonomic activity in young adults with short sleep. Indian Sleep Med 2011; 6 (1):20-23.

DOI: 10.5005/ijsm-6-1-20

License: NA

Published Online: 01-08-2018

Copyright Statement:  NA


Sleep deficit has been associated with autonomic imbalance. This study aimed to evaluate the effect of sleep duration on cardiac autonomic activity as determined by heart rate variability (HRV) in young adults. Method: Heart rate and frequency domain measures of HRV were evaluated from short-term electrocardiographic recordings (5 min each) of 95 medical students (37 women) in the age group of 18 to 22 years. Self reported duration of sleep during the previous month were noted. The data was analysed by grouping and comparing the subjects according to average sleep duration per day with >7hours (n=51) and <7 hours (n=44) as adequate and inadequate sleep respectively. Results: No difference was found in HRV indices and in heart rate between the sleep groups. The subjects with inadequate sleep had lower HF, HF in normalized units and higher values of LF, LF/HF ratio compared to adequate sleep group. Conclusion: Sleep deprivation over a month period do not alter cardiac autonomic activity in young adults as assessed by short-term heart rate variability.

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