Indian Journal of Applied Basic Medical Sciences
Open Access
  • Year: 2013
  • Volume: 15b
  • Issue: 21

Heart rate variability in delayed sleep phase syndrome

  • Author:
  • Dilshad Manzar1, Unaise Abdul Hameed2, Mani Sethi3, M Ejaz Hussain4
  • Total Page Count: 5
  • Page Number: 32 to 36

1PhD student, Sleep Research Unit, Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia

2PhD student, Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia

3Project Fellow, UGC Research Project, Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia

4PhD, Professor and Director, Centre for Physiotherapy and Rehabilitation Sciences, Jamia Millia Islamia

Online published on 22 May, 2014.

Abstract

The study investigated the heart rate variability (HRV) measures and electrocardiogram (ECG) features during sleep after 24 h total sleep deprivation (TSD) in a mild chronic adult male patient of delayed sleep phase syndrome (DSPS). The findings of mean Heart Rate (HR), mean RR (RRI time series), time domain and frequency domain measures are presented. Bradycardias, sinus pauses and ectopic beats were observed during specific parts of sleep. HRVs suggest a sustained sympathetic and decreased parasympathetic activity in the sleep deprived DSPS patient.

Keywords

Delayed sleep phase syndrome, heart rate variability, autonomic nervous system, sleep