NDLI: Effects of short-term exercise-training on aortic systolic pressure augmentation in overweight and obese individuals

Content Provider	Springer Nature Link
Author	Millen, Aletta M. E. rton, Gavin R. Avidon, Ingrid Woodiwiss, Angela J.
Copyright Year	2013
Abstract	To determine whether exercise training-induced decreases in blood pressure (BP) can be explained by decreases in aortic systolic pressure augmentation in overweight or obese individuals. Thirty-five sedentary or recreationally active men and women (30–57 years) who were either overweight (40 %) or obese (60 %) completed 6 weeks of exercise training (≥3 days/week; stationary bike and/or treadmill) either preceded (n = 19) or followed (n = 16) by a 6-week control period of no exercise. Aortic augmentation pressure (AP), aortic and peripheral augmentation indices (AIx), and central aortic BP (SphygmoCor) were determined before and after exercise training and a control period. Peak oxygen consumption increased (p = 0.0001) from 27.0 ± 5.1 to 28.8 ± 5.8 mL/(kg min) after 6 weeks of exercise. Exercise training decreased brachial systolic (SBP) and diastolic BP from 142 ± 8/94 ± 8 to 134 ± 11/86 ± 11 mmHg (p < 0.005/p < 0.005); whereas no changes were observed after the control period (141 ± 11/91 ± 9 mmHg, p = 0.81/p = 0.34). Neither AP (baseline: 9.2 ± 4.2 mmHg; after 6 weeks training: 8.7 ± 6.1 mmHg), aortic AIx (baseline: 24.6 ± 11.0 %; after 6 weeks training: 22.7 ± 11.1 %), nor peripheral AIx (baseline: 81.4 ± 16.7 mmHg; after 6 weeks training: 76.4 ± 16.5 mmHg) were modified by exercise training. Although aortic SBP decreased after exercise (132 ± 8 to 124 ± 12 mmHg, p < 0.002), these changes were accounted for by decreases in mean arterial pressure. In overweight or obese individuals, although short-term aerobic exercise training, which improved cardiorespiratory fitness, may produce marked decreases in aortic and brachial BP; these effects are not attributed to alterations in aortic systolic pressure augmentation.
Starting Page	1793
Ending Page	1803
Page Count	11
File Format	PDF
ISSN	14396319
Journal	European Journal of Applied Physiology
Volume Number	113
Issue Number	7
e-ISSN	14396327
Language	English
Publisher	Springer-Verlag
Publisher Date	2013-02-20
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Obesity Exercise training Augmentation index Aortic blood pressure Human Physiology Occupational Medicine/Industrial Medicine Sports Medicine
Content Type	Text
Resource Type	Article
Subject	Orthopedics and Sports Medicine Physiology (medical) Public Health, Environmental and Occupational Health Sports Science

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