The Effect of Body Mass Index on Blood Pressure and Heart Rate Response During Treadmill Exercise Test in Non-diabetic Adults
Journal Title: Istanbul Medical Journal - Year 2021, Vol 22, Issue 2
Abstract
Introduction: Exaggerated blood pressure response to exercise is an independent risk of future hypertension (HT), and impaired heart rate (HR) response is a predictor of cardiovascular mortality and morbidity. Obesity is a risk factor for HT. This study aimed to evaluate the influence of body mass index (BMI) on systolic blood pressure (SBP) and HR during exercise treadmill test. Methods: Data of 124 patients without diabetes who completed treadmill test with negative results were obtained from archives of the test unit. Patients were divided into three groups according to BMI; 18.5-24.9 (normal), 25-29.9 (overweight), and >30 (obese). Basal, 3rd and 6th minutes, peak exercise, 2nd minute of recovery phase SBP and HR values, and level changes (Δ) from the beginning were compared. A p-value of <0.05 was considered statistically significant. Results: There was a difference in terms of mean SBP and ΔSBP among the three groups (p<0.05). The 6th minute and peak exercise difference was more apparent between the obese and normal groups (p<0.001). The overweight and obese group had significantly higher mean SBP and ΔSBP values than the normal group during the recovery phase (p=0.005 and <0.001, respectively). Analysis of HR revealed that the obese group had higher HR levels than the normal group in the 3rd and 6th minutes (p<0.001 and p=0.003, respectively) but no difference at the peak and recovery phases. Conclusion: Office blood pressure measurements may underrecognize the hypertensive status during active daily life. Exercise tests can help identify particularly overweight or obese individuals with exaggerated blood pressure response to exercise and are, therefore, at risk of developing HT. In this way, these individuals can be directed to early exercise and diet programs.
Authors and Affiliations
Ceyda Aslan, Müzeyyen Aslaner Ak, Mecdi Ergüney
Keywords
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- DOI 10.4274/imj.galenos.2021.80688
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