Effect of obesity on cardiovascular responses to submaximal treadmill exercise in adult males.

Autor: Itagi ABH; Department of Physiology, All India Institute of Medical Sciences, Mangalagiri, Andhra Pradesh, India., Jayalakshmi MK; Department of Physiology, Gadag Institute of Medical Sciences, Gadag, Karnataka, India., Yunus GY; Department of of Public Health Dentistry, Aditya Dental College, Beed, Maharashtra, India.
Jazyk: angličtina
Zdroj: Journal of family medicine and primary care [J Family Med Prim Care] 2020 Sep 30; Vol. 9 (9), pp. 4673-4679. Date of Electronic Publication: 2020 Sep 30 (Print Publication: 2020).
DOI: 10.4103/jfmpc.jfmpc_543_20
Abstrakt: Context: Obesity is a major risk factor for chronic diseases. Abnormal changes in cardiovascular responses to exercise indicate the alteration in autonomic activity in obese.
Aims: To assess and compare the cardiovascular parameters before and after exercise among obese and nonobese adult males.
Subjects and Methods: Thirty each obese and normal-weight males between the age group 18-45 years were selected as cases and controls, respectively. Heart rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), mean arterial pressure (MAP), corrected QT intervals were measured before and after submaximal treadmill exercise (QT and QTc) were done according to Bruce protocol. HR, SBP, DBP, MAP, QT, and QTc were also measured during passive recovery at 1 min and 5 min after exercise.
Statistical Analysis Used: One-way analysis of variance and t -test were used to assess changes before and after exercise.
Results: Resting HR was significantly higher in obese when compared to nonobese ( P < 0.05). SBP, DBP, MAP, QT, and QTc were significantly higher in obese when compared to nonobese ( P < 0.001). Immediately after exercise HR, SBP, DBP, MAP, QT, and QTc were significantly higher in obese when compared to nonobese ( P < 0.001) 1 min after exercise.
Conclusions: Obese individuals had elevated resting cardiovascular parameters and showed increased responses to steady exercise which could be due to alteration in autonomic functions with sympathetic hyperactivity. Delayed rate of decrease in HR and BP after exercise was also observed in obese, which indicates that they are at risk of developing cardiovascular diseases.
Competing Interests: There are no conflicts of interest.
(Copyright: © 2020 Journal of Family Medicine and Primary Care.)
Databáze: MEDLINE
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