Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study

Sudha B Sreenivas; Rajalakshmi R; Vijaya Vageesh Y

doi:10.5455/njppp.2018.8.0100812012018

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Original Research
Online Published: 03 Feb 2018

Natl J Physiol Pharm Pharmacol. 2018; 8(6): 800-804

doi: 10.5455/njppp.2018.8.0100812012018

Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study

Sudha B Sreenivas, Rajalakshmi R, Vijaya Vageesh Y.

Cited By:1

Abstract
Background: Heart rate variability (HRV) is the beat-to-beat variation in time of consecutive heartbeats. It is one of the indicators of autonomic nervous system (ANS) function. The ANS control of the cardiovascular system in obesity and hypertension remains controversial.

Aims and Objectives: The objectives of the study were to analyze the effects of isotonic exercise on frequency domain indicators of HRV in young obese adults with parental history of hypertension and compare the same with that of normal controls along with an assessment of their recovery.

Materials and Methods: Normotensive subjects in the age group of 1822 years were selected and classified into two groups, based on body mass index and parental history of hypertension. Electrocardiogram was recorded before exercise, immediately after exercise and during recovery using powerlab.

Result: Statistically significant variations were observed when values of low frequency (LF), high frequency (HF), and LF/HF ratio were compared in all the three conditions. Obese students with positive history of parental hypertension reflected a sympathovagal imbalance that exaggerated during exercise with delayed recovery.

Conclusion: This study reveals the importance of vagal inhibition during exercise. It has also enabled us to detect cardiovascular autonomic imbalance that is exaggerated during exercises in young obese subjects who are genetically susceptible and more prone to develop hypertension later in life.

Key words: Heart Rate Variability; Isotonic Exercise; Obesity and Parental History of Hypertension; Frequency Domain Indicators of Heart Rate Variability

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Pubmed Style

Sreenivas SB, R R, Y VV. Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study. Natl J Physiol Pharm Pharmacol. 2018; 8(6): 800-804. doi:10.5455/njppp.2018.8.0100812012018

Web Style

Sreenivas SB, R R, Y VV. Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study. https://www.njppp.com/?mno=287341 [Access: November 01, 2025]. doi:10.5455/njppp.2018.8.0100812012018

AMA (American Medical Association) Style

Sreenivas SB, R R, Y VV. Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study. Natl J Physiol Pharm Pharmacol. 2018; 8(6): 800-804. doi:10.5455/njppp.2018.8.0100812012018

Vancouver/ICMJE Style

Sreenivas SB, R R, Y VV. Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study. Natl J Physiol Pharm Pharmacol. (2018), [cited November 01, 2025]; 8(6): 800-804. doi:10.5455/njppp.2018.8.0100812012018

Harvard Style

Sreenivas, S. B., R, . R. & Y, . V. V. (2018) Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study. Natl J Physiol Pharm Pharmacol, 8 (6), 800-804. doi:10.5455/njppp.2018.8.0100812012018

Turabian Style

Sreenivas, Sudha B, Rajalakshmi R, and Vijaya Vageesh Y. 2018. Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study. National Journal of Physiology, Pharmacy and Pharmacology, 8 (6), 800-804. doi:10.5455/njppp.2018.8.0100812012018

Chicago Style

Sreenivas, Sudha B, Rajalakshmi R, and Vijaya Vageesh Y. "Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study." National Journal of Physiology, Pharmacy and Pharmacology 8 (2018), 800-804. doi:10.5455/njppp.2018.8.0100812012018

MLA (The Modern Language Association) Style

Sreenivas, Sudha B, Rajalakshmi R, and Vijaya Vageesh Y. "Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study." National Journal of Physiology, Pharmacy and Pharmacology 8.6 (2018), 800-804. Print. doi:10.5455/njppp.2018.8.0100812012018

APA (American Psychological Association) Style

Sreenivas, S. B., R, . R. & Y, . V. V. (2018) Frequency domain analysis of heart rate variability in young obese adults with parental history of hypertension during isotonic exercise: A comparative study. National Journal of Physiology, Pharmacy and Pharmacology, 8 (6), 800-804. doi:10.5455/njppp.2018.8.0100812012018

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