Acute Effect of High-Intensity Interval Versus Moderate-Intensity Continuous Exercise on Blood Pressure and Arterial Compliance in Middle-Aged and Older Hypertensive Women With Increased Arterial Stiffness

Eduardo Caldas Costa; David E. Kent; Kevin F. Boreskie; Jacqueline L. Hay; Dustin S. Kehler; Alex Edye-Mazowita; Kristina Nugent; Josaphine Papadopoulos; Andrew N. Stammers; Chris Oldfield; Rakesh C. Arora; Rodrigo Alberto Vieira Browne; Todd A. Duhamel

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Acute Effect of High-Intensity Interval Versus Moderate-Intensity Continuous Exercise on Blood Pressure and Arterial Compliance in Middle-Aged and Older Hypertensive Women With Increased Arterial Stiffness

Eduardo Caldas Costa ; David E. Kent ^[2] ; Kevin F. Boreskie ^[2] ; Jacqueline L. Hay ; Dustin S. Kehler ^[1] ; Alex Edye-Mazowita ^[1] ; Kristina Nugent ^[1] ; Josaphine Papadopoulos ; Andrew N. Stammers ^[2] ; Chris Oldfield ^[1] ; Rakesh C. Arora ^[1] ; Rodrigo Alberto Vieira Browne ; Todd A. Duhamel
1. [1] University of Manitoba
  
  University of Manitoba
  
  Canadá
2. [2] Institute of Cardiovascular Sciences, St-Boniface Hospital Albrechtsen Research Center, Winnipeg, Canada
Localización: Journal of strength and conditioning research: the research journal of the NSCA, ISSN 1064-8011, Vol. 34, Nº. 5, 2020, págs. 1307-1316
Idioma: inglés
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Resumen
- Hypertension and arterial stiffness are common in middle-aged and older women. This study compared the acute effect of high-intensity interval exercise (HIIE) and moderate-intensity continuous exercise (MICE) on blood pressure (BP) and arterial compliance in middle-aged and older hypertensive women with increased arterial stiffness. Nineteen women (67.6 ± 4.7 years) participated in this randomized controlled crossover trial. Subjects completed a control, MICE (30 minutes at 50–55% of heart rate reserve [HRR]), and HIIE (10 × 1 minute at 80–85% of HRR, 2 minutes at 40–45% of HRR) session in random order. Blood pressure and large and small arterial compliance (radial artery pulse wave analysis) were measured at baseline and 30, 60, 90, and 120 minutes after sessions. A p < 0.05 was considered statistically significant. Systolic BP was reduced in ∼10 mm Hg after MICE at 30 minutes and after HIIE at all time points (30, 60, 90, and 120 minutes) after exercise compared with the control session (p < 0.05). Only HIIE showed lower systolic BP levels at 60, 90, and 120 minutes after exercise compared with the control session (∼10 mm Hg; p < 0.05). No changes were observed in diastolic BP, or in large and small arterial compliance (p > 0.05). High-intensity interval exercise elicited a longer systolic postexercise hypotension than MICE compared with the control condition, despite the absence of acute modifications in large and small arterial compliance.