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Journal of Human Hypertension (2008) 22, 678686 & 2008 Macmillan Publishers Limited All rights reserved 0950-9240/08 $32.00 http://www.nature.com/jhh
Web End =www.nature.com/jhh
ORIGINAL ARTICLE
Effect of 4 weeks of aerobic or resistance exercise training on arterial stiffness, blood flow and blood pressure in pre- and stage-1 hypertensives
SR Collier1,2, JA Kanaley1, R Carhart Jr2, V Frechette2, MM Tobin1, AK Hall1, AN Luckenbaugh1 and B Fernhall3
1Department of Exercise Science, Syracuse University, Syracuse, NY, USA; 2Department of Medicine, SUNY Upstate Medical University, Syracuse, NY, USA and 3College of Applied Health Sciences, University of Illinois at UrbanaChampaign, Urbana, IL, USA
The benefits of aerobic exercise (AE) training on blood pressure (BP) and arterial stiffness are well established, but the effects of resistance training are less well delineated. The purpose of this study was to determine the impact of resistance vs aerobic training on haemo-dynamics and arterial stiffness. Thirty pre- or stage-1 essential hypertensives (20 men and 10 women), not on any medications, were recruited (age: 48.21.3 years) and randomly assigned to 4 weeks of either resistance (RE) or AE training. Before and after training, BP, arterial stiffness (pulse wave velocity (PWV)) and vasodilatory capacity (VC) were measured. Resting systolic BP (SBP) decreased following both training modes (SBP: RE, pre 1362.9 vs post 1323.4; AE, pre 1413.8 vs post 1363.4 mm Hg, P 0.005; diastolic BP: RE, pre 781.3 vs post 741.6; AE, pre 801.6 vs post 771.7 mm Hg, P 0.001). Central PWV increased (P 0.0001) following
RE (110.912.70.9 m s 1) but decreased after AE(12.10.811.10.8 m s 1). Peripheral PWV also increased (P 0.013) following RE (RE, pre 11.50.8 vs post 12.50.7 m s 1) and decreased after AE (AE, pre12.60.8 vs post 11.60.7 m s 1). The VC area under the curve (VCAUC) increased more with RE than that with AE (RE, pre 768.0 vs post 131.111.6; AE, pre 82.78.0 vs post 110.111.6 ml per min per s per 100 ml, P 0.001). Further, peak VC (VCpeak) increased more following resistance training compared to aerobic training (RE, pre 171.9 vs post 25.82.1; AE, pre 19.28.4 vs post 22.98.4 ml per min per s per 100 ml, P 0.005). Although both RE and AE training decreased BP, the change in pressure may be due to different...