Banca de DEFESA: FRANCISCO DALTON ALVES DE OLIVEIRA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : FRANCISCO DALTON ALVES DE OLIVEIRA
DATE: 11/05/2026
TIME: 14:00
LOCAL: REMOTA
TITLE:

THE EFFECT OF HIGH-INTENSITY INTERVAL TRAINING AND MODERATE-INTENSITY CONTINUOUS TRAINING ON AMBULATORY BLOOD PRESSURE AND CARDIOVASCULAR OUTCOMES IN HYPERTENSIVE OLDER ADULTS: A RANDOMIZED CONTROLLED TRIAL

KEY WORDS:

Aging, Cardiovascular Diseases, Exercise, Aerobic Training, Cardiorespiratory Fitness

PAGES: 91
BIG AREA: Ciências da Saúde
AREA: Educação Física
SUMMARY:

Objective: To investigate the effects of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) on ambulatory blood pressure and cardiac outcomes in older adults with systemic arterial hypertension. Methods: This was a randomized controlled, parallel-group clinical trial with three arms. A total of 65 older adults with hypertension were randomized into three conditions: a HIIT group (n = 21), a MICT group (n = 22), and a control group (n = 22). The HIIT protocol consisted of 1-minute vigorous exercise intervals (rating of perceived exertion [RPE] 7–8), interspersed with 1-minute recovery intervals (RPE 3–4). The MICT protocol consisted of continuous moderate exercise (RPE 5–6). The control group participated in a health education program. All interventions lasted 12 weeks. Measurements included 24-hour ambulatory blood pressure, resting blood pressure (central and peripheral), aortic pulse wave velocity (PWV), augmentation index (AIx), and cardiorespiratory fitness (VO₂peak), assessed at baseline and after 12 weeks. Group-by-time interaction effects were tested using generalized estimating equations. A p-value < 0.05 was considered statistically significant. Results: No significant group-by-time interaction effects were observed for ambulatory blood pressure (p > 0.05). No significant effects were found for central office blood pressure or PWV (p > 0.05). Only HIIT reduced resting peripheral systolic blood pressure (approximately 5 mmHg) and AIx (approximately 6%) (p < 0.05). VO₂peak increased following both MICT and HIIT (approximately 2.0 mL·kg⁻¹·min⁻¹; p < 0.05). Conclusion: Among physically inactive older adults with hypertension, 12 weeks of self-paced, RPE-prescribed MICT and HIIT did not reduce ambulatory blood pressure compared with health education. However, HIIT reduced systolic blood pressure and AIx, and both exercise modalities improved VO₂peak, demonstrating the feasibility of scalable, RPE-guided training, with secondary outcomes favoring HIIT.

COMMITTEE MEMBERS:
Externo à Instituição - RODRIGO FERRARI DA SILVA - UFRGS
Externa à Instituição - ALINE MENDES GERAGE DA SILVA - UFSC
Externa à Instituição - CÍNTIA EHLERS BOTTON - UFC
Presidente - 2682821 - EDUARDO CALDAS COSTA
Externo à Instituição - GUILHERME MORAIS PUGA - UFU