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Kumar, Yogesh
- Heart Rate Variability During Examination Stress in Medical Students
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Authors
Affiliations
1 Junior resident, Department of Physiology LLRM Medical College, Meerut, UP
1 Junior resident, Department of Physiology LLRM Medical College, Meerut, UP
Source
International Journal of Physiology, Vol 1, No 1 (2013), Pagination: 82-86Abstract
Stress has been investigated as a risk factor for cardiovascular disease and for reduced human performances. This study investigates the variations of Heart Rate Variability (HRV) due to a reallife situation of examination stress which is a known stressor to examination going students. Sixteen first year MBBS students were selected randomly to participate in the study to know heart rate variability (HRV) during the examination period. After noting all the anthropometric parameters, three recordings were performed for each student: the first assessment was done during college cultural week and it served as control, the second reading was taken on the day of their second terminal viva voce examination and the final reading was taken on the viva voce examination during professional examination. Nonlinear analysis of HRV was performed using mean RR interval, Heart rate, RMSSD, NN50, pNN50, VLF, LF, HF and LF/HF ratio. Almost all HRV features measuring heart rate complexity were decreased in the stress period results indicating a decline in HRV during stress. It is also established that non parametric HRV analysis using short term ECG recording could be effective in detecting real-life stressful conditions.Keywords
Heart Rate Variability, LF/HF Ratio, Examination stress, RMSSD
References
- Hubert C, Lambertz M, Nelesen RA, Bardwell W, Choi JB, Dimsdale JE: Effects of stress on heart rate complexity–a comparison between short-term and chronic stress. Biol Psychol 2009, 80:325-332.
- Kim D, Seo Y, Jaegeol C, Chul-Ho C: Detection of subjects with higher self-reporting stress scores using heart rate variability patterns during the day. Engineering in Medicine and Biology Society, 2008 EMBS 2008 30th Annual International Conference of the IEEE; 20-25 Aug, 2008 2008, 682-685.
- Malik M, Bigger JT, Camm AJ, Kleiger RE, Malliani A, Moss AJ, Schwartz PJ: Heart rate variability: Standards of measurement, physiological interpretation, and clinical use. Eur Heart J 1996, 17:354-381.
- Sato N, Miyake S: Cardiovascular reactivity to mental stress: relationship with menstrual cycle and gender. J Physiol Anthropol Appl Human Sci 2004, 23:215-223.
- Yashima K, Sasaki T, Kageyama Y, Odagaki M, Hosaka H: Application of wavelet analysis to the plethysmogram for the evaluation of mental stress. Conf Proc IEEE Eng Med Biol Soc 2005, 3:2781-2784.
- Shinba T, Kariya N, Matsui Y, Ozawa N, Matsuda Y, and Yamamoto K: Decrease in heart rate variability response to task is related to anxiety and depressiveness in normal subjects. Psychiatry Clin Neurosci 2008, 62:603-609.
- Nakamura Y, Yamamoto Y, Muraoka I: Autonomic Control of Heart-Rate during Physical Exercise and Fractal Dimension of Heart-Rate- Variability. Journal of Applied Physiology 1993, 74:875-881.
- Butler GC, Yamamoto Y, Hughson RL: Fractal Nature of Short-Term Systolic Bp and Hr Variability during Lower-Body Negative-Pressure. American Journal of Physiology 1994, 267:R26- R33.
- Hagerman I, Berglund M, Lorin M, Nowak J, Sylven C: Chaos-related deterministic regulation of heart rate variability in time and frequency domains: Effects of autonomic blockade and exercise. Cardiovascular Research 1996, 31:410-418.
- Cervantes Blasquez JC, Rodas Font G, Capdevila Ortis L: Heart-rate variability and precompetitive anxiety in swimmers. Psicothema 2009, 21:531-536.
- Filaire E, Portier H, Massart A, Ramat L, Teixeira A: Effect of lecturing to 200 students on heart rate variability and alpha-amylase activity. Eur J Appl Physiol 2010, 108:1035-1043.
- Waldstein SR, Neumann SA, Burns HO, Maier KJ: Role-played interpersonal interaction: ecological validity and cardiovascular reactivity. Ann Behav Med 1998, 20:302-309.
- Anishchenko VS, Igosheva NB, Pavlov AN, Khovanov IA, Yakusheva TA: Comparative analysis of methods for classifying the cardiovascular system’s states under stress. Critical Reviews in Biomedical Engineering 2001, 29:462- 481.
- Lucini D, Norbiato G, Clerici M, Pagani M: Hemodynamic and Autonomic Adjustments to Real Life Stress Conditions in Humans. Hypertension 2002, 39:184-188.
- Dimitriev D, Dimitriev A, Karpenko Y, Saperova E: Influence of examination stress and psychoemotional characteristics on the blood pressure and heart rate regulation in female students. Human Physiology 2008, 34:617-624.
- Tharion E, Parthasarathy S, Neelakantan N: Short-term heart rate variability measures in students during examinations. Natl Med J India 2009, 22:63-66.
- Goldberger AL, Amaral LAN, Glass L, Hausdorff JM, Ivanov PC, Mark RG, Mietus JE, Moody GB, Peng C-K, Stanley HE: PhysioBank, PhysioToolkit, and PhysioNet: Components of a New Research Resource for Complex Physiologic Signals. Circulation 2000, 101:e215-220.
- Zong W, Moody GB, Jiang D: A robust opensource algorithm to detect onset and duration of QRS complexes. Computers in Cardiology, 2003; 21-24 Sept 2003, 2003:737-740.
- Melillo P, Fusco R, Sansone M, Bracale M, Pecchia L: Discrimination power of long-term heart rate variability measures for chronic heart failure detection. Medical and Biological Engineering and Computing 2011, 49:67-74.
- Sleep Habits in First Year Medical Students at AIIMS Patna and its Impact on their Academic Performance
Abstract Views :504 |
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Authors
Affiliations
1 Department of Physiology AIIMS Patna, IN
1 Department of Physiology AIIMS Patna, IN
Source
International Journal of Physiology, Vol 8, No 1 (2020), Pagination: 124-129Abstract
Introduction: - Sleep is an important biological necessity. Sleep timing and duration affects many functions of our body like, endocrine, metabolic, and neurological functions which are critical to the maintenance of individual health. College students often have erratic sleep schedules, poor sleep hygiene and poor sleep quality, which might affect their performance and cognitive functions. Objective: To characterize sleep habits and day and night habits in medical students using sleep quality assessment (PQSI scale) and Epworth sleepiness scale; to estimate how subjective sleep quality is associated with sleep problems in students; to estimate how academic progress is associated with subjective sleep quality. Materials and Method: A cross-sectional design- A self-administered paper questionnaire was administered of first-year through finalyear MBBS students. Students data on sleep quality was collected routinely as part of orientation program to assess students’ need in department of Physiology. Data on academic performance (first professional marks) was accessed from examination controller. Pittsburgh sleep quality index and Epworth sleepiness scale scoring was done. Results: A total of 90 medical students of AIIMS Patna, aged 16 to 25 years completed the study. Sleep habits of students shows an extreme range of 2 to 4 hrs minimum sleep to 7 to 9 hrs of maximum sleep. Maximum students take 6 to 7 hrs sleep. No statistically significant difference in academic performance between the different Epworth sleepiness score is observed. Negative correlation was obtained between the PSQI and grade average.Keywords
Sleep Deprivation, Academic Performance, ESS Score, Global PQSI.References
- Paula A and Päivi P-K; Sleep deprivation: Impact on cognitive performance; Neuropsychiatr Dis Treat. 2007 Oct; 3(5): 553–567.
- Gregory B N J, Wesensten D R, Thorne M L, Thomas Helen C, Sing D P, Redmond et al; Patterns of performance degradation and restoration during sleep restriction and subsequent recovery: a sleep dose‐response study; Journal of sleep research; March 2003;12(1):1-12.
- Healthy People. 2020, Office of Disease Health and Promotion, U.S. Department of Health and Human Services. Sleep health. http://www.healthypeople.gov/2020/topicsobjectives2020/overview.aspx?topicid=38. April 21, 2014.
- Megan L Z , Matthew J. S, Matthew Song, Leanna M. K, Jingjing Qian, Paul W et al; Sleep Duration and Academic Performance Among Student Pharmacists; Am J Pharm Educ. 2015 Jun 25; 79(5): 63.
- Ana L D. M, Denise B.F. M, Patrícia F. L &John F. A; The Relationships between Sleep-Wake Cycle and Academic Performance in Medical Students; Journal of Biological Rhythm Research; 2001; 32(2)
- Veldi M, Aluoja A, Vasar V; Sleep quality and more common sleep-related problems in medical students; Sleep Med. 2005 May;6(3):269-75.
- Bocca ML, Denise P. Total sleep deprivation effect on disengagement of spatial attention as assessed by saccadic eye movements. Clin Neurophysiol.2006; 117:894–9.
- Blagrove M, Alexander C, Horne JA. The effects of chronic sleep reduction on the performance of cognitive tasks sensitive to sleep deprivation. App Cogn Psych.1995; 9:21–40.
- Linde L, Bergstrom M. The effect of one night without sleep on problem-solving and immediate recall. Psychol Res. 1992; 54:127–36.
- Harrison Y, Horne JA; One night of sleep loss impairs innovative thinking and flexible decision making.; Organ Behav Hum Decis Process. 1999 May; 78(2):128-45.
- Dinges DF, Pack F, Williams K, Gillen KA, Powell JW, Ott GE, Aptowicz C, Pack AI; Cumulative sleepiness, mood disturbance, and psychomotor vigilance performance decrements during a week of sleep restricted to 4-5 hours per night.; Sleep. 1997 Apr; 20(4):267-77.
- Kim DJ, Lee HP, Kim MS, et al. The effect of total sleep deprivation on cognitive functions in normal adult male subjects. Int J Neurosci. 2001; 109:127– 37.
- Philibert I; Sleep loss and performance in residents and non-physicians: a meta-analytic examination; Sleep. 2005 Nov; 28(11):1392-402.
- Maurice M. Ohayon, Epidemiological Overview of sleep Disorders in the General Population; Sleep Medicine Research (SMR) 2011; 2(1): 1-9
- Rodrigues RN, Viegas CA, Abreu E Silva AA, Tavares P ; Daytime sleepiness and academic performance in medical students. Arq Neuropsiquiatr. 2002 Mar;60(1):6-11.
- Jamaan M. Al-Zahrani , Khaled K. Aldossari, Imad Abdulmajeed , Sameer H. Al-Ghamdi , Abdullah M. Al-Shamrani and Nawaf S. Al-Qahtani ; Daytime Sleepiness and Academic Performance among Medical Students; Health science journal; 2016, 10(3):13.