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Influence of time of day in which aerobic training is performed on training-induced autonomic and vascular adaptations in hypertensive elderly

Grant number: 18/05226-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): October 01, 2018
Effective date (End): September 30, 2021
Field of knowledge:Health Sciences - Physical Education
Principal Investigator:Cláudia Lúcia de Moraes Forjaz
Grantee:Leandro Campos de Brito
Home Institution: Escola de Educação Física e Esporte (EEFE). Universidade de São Paulo (USP). São Paulo , SP, Brazil

Abstract

This postdoctoral is a sequence of the candidate's research line developed during his M.S (FAPESP - 2011/03584-8) and PhD programs (FAPESP - 2014/21667-6) and includes collaborations with the Circulatory Autonomic Control Laboratory and the University of Oregon. The prevalence of hypertension increases every year, and alterations of cardiovascular autonomic mechanisms and endothelial function are present in this disease, leading to the increase of systemic vascular resistance and blood pressure levels (BP) as well as increasing the cardiovascular risk. Aerobic training is recommended for the treatment of hypertension due to its well-known hypotensive effect beside its benefits on autonomic and vascular parameters. An interesting and poorly studied aspect is that BP and its regulatory mechanisms present circadian pattern, which suggest that aerobic training may provide different effects when executed at different times of day, as it was seen for BP, an original and high impact data demonstrated in candidate's Ph.D thesis. However, it is not known how cardiovascular autonomic regulation and the vascular function act on the hemodynamic control after performing aerobic training at different times of day, which might be called a "window of opportunity" enjoined by exercise at this time of day. Thus, the current study will investigate the effect of the time of the day at which training is executed on cardiovascular autonomic regulation and vascular function. For this, 26 hypertensive elderly males and females (e60 years old), after screening, will participate in initial evaluations that will measure: cardiac and peripheral baroreflex control, muscular sympathetic nervous activity, endothelial function, vascular conductance, nitric oxide bioavailability, peripheral vascular resistance and BP. Then, they will be randomly allocated in two groups (MT - Morning training or ET - Evening training) that will training on cycle ergometer, for 10 weeks, with a frequency of 3 time/week, for 45 min, with an intensity increasing from the anaerobic threshold to 10% below the respiratory compensation point. After the interventions, the subjects will be reevaluated. A two-way between-within ANOVA will be used, (Pd0.05).

Articles published in other media outlets (37 total):
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IstoÉ online: Estudo aponta melhor horário para pessoas hipertensas se exercitarem (30/Oct/2020)
UOL: Estudo poderá orientar prática de exercício físico por hipertensos (24/Sep/2020)
Fato Amazônico: Estudo aponta melhor horário para pessoas hipertensas se exercitarem (02/Nov/2020)
Terra: Estudo aponta melhor horário para pessoas hipertensas se exercitarem (30/Oct/2020)
O Liberal (PA) online: Estudo aponta melhor horário para pessoas hipertensas se exercitarem (30/Oct/2020)
Central das Notícias: Estudo aponta melhor horário para pessoas hipertensas se exercitarem (30/Oct/2020)
Head Topics (Reino Unido): Estudo aponta melhor horário para pessoas hipertensas se exercitarem (30/Oct/2020)
Tatame online: Artigo: estudo aponta melhor horário para pessoas hipertensas se exercitarem com maior segurança e qualidade; saiba mais - TATAME (30/Oct/2020)
LANCE!: Estudo aponta melhor horário para pessoas hipertensas se exercitarem (30/Oct/2020)
Jornal Startup: Resultados de estudo poderão orientar prática de exercício físico por hipertensos (07/Oct/2020)
Os Cabeças da Notícia: Fazer exercícios físicos à noite ajuda a controlar a hipertensão (06/Oct/2020)
Jornal Joseense News: Resultados de estudo poderão orientar prática de exercício físico por hipertensos (04/Oct/2020)
Secretaria da Educação do Estado de São Paulo: Fapesp: Resultados de estudo podem orientar prática de exercício físico por hipertensos (03/Oct/2020)
Jornal Folha da Terra (Itupeva, SP) online: Fapesp: Resultados de estudo podem orientar prática de exercício físico por hipertensos (28/Sep/2020)
Votunews: Fapesp: Resultados de estudo podem orientar prática de exercício físico por hipertensos (28/Sep/2020)
Beto Ribeiro Repórter: Fapesp: Resultados de estudo podem orientar prática de exercício físico por hipertensos (28/Sep/2020)
Duna Press : SP: Resultados de estudo podem orientar prática de exercício físico por hipertensos (28/Sep/2020)
Portal do Governo do Estado de São Paulo: Fapesp: Resultados de estudo podem orientar prática de exercício físico por hipertensos (27/Sep/2020)
Região Noroeste : Estudos podem orientar prática de exercício por hipertensos (27/Sep/2020)
Folha Nobre: Fapesp: Resultados de estudo podem orientar prática de exercício físico por hipertensos (27/Sep/2020)
Correio Independente: Resultados de estudo podem orientar prática de exercício físico por hipertensos (26/Sep/2020)
The Times of India (Índia) online: Study compares effect of ACE inhibitors and ARBs on post-exercise hypotension (25/Sep/2020)
News Medical (Reino Unido): Researchers compare the effect of two anti-hypertensive drugs on post-exercise hypotension (25/Sep/2020)
Make Your Body Healthy: Study evaluates guidelines for exercise for high blood pressure patients (25/Sep/2020)
Tems RYT: Study evaluates guidelines for exercise for high blood pressure patients (25/Sep/2020)
Bioengineer (Reino Unido): A study could provide guideline for exercise training aimed at high blood pressure patient (24/Sep/2020)
Science Codex: A study could provide guideline for exercise training aimed at high blood pressure patient (24/Sep/2020)
Scienmag Science Magazine (Reino Unido): A study could provide guideline for exercise training aimed at high blood pressure patient (24/Sep/2020)
Brightsurf: A study could provide guideline for exercise training aimed at high blood pressure patient (24/Sep/2020)
Brinkwire (Reino Unido): Study evaluates guidelines for exercise for high blood pressure patients. (24/Sep/2020)
Il Mio Diabete (Itália): L’esercizio fisico di sera migliora la pressione sanguigna negli ipertesi (24/Sep/2020)
INS - Infusion Nurses Society (EUA): Study evaluates guidelines for exercise for high blood pressure patients (24/Sep/2020)
Amis-childrenshome: Study evaluates guidelines for exercise for high blood pressure patients (24/Sep/2020)
Freeschi: Study evaluates guidelines for exercise for high blood pressure patients (24/Sep/2020)
Knowledia (França): Researchers compare the effect of two anti-hypertensive drugs on post-exercise hypotension (21/Sep/2020)
Gazeta do Povo online: Exercícios ao final do dia trazem mais benefícios a quem tem pressão alta (30/Sep/2019)
Hc: Estudo aponta melhor horário para pessoas hipertensas se exercitarem (06/Nov/2020)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BRITO, LEANDRO C.; QUEIROGA, THEREZA; FRANCO, RUTH R.; PASSONE, CAROLINE G. B.; LOPES, MARIA-CECILIA; SHEA, STEVEN A.; BUENO, CLARISSA; SOSTER, LETICIA M. S. F. A. Cardiac autonomic control during non-REM and REM sleep stages in paediatric patients with Prader-Willi syndrome. Journal of Sleep Research, AUG 2020. Web of Science Citations: 0.
CECILIATO, JULIO; COSTA, EDUARDO C.; AZEVEDO, LUAN; SOUSA, JULIO C.; FECCHIO, RAFAEL Y.; BRITO, LEANDRO C. Effect of Resistance Training on Arterial Stiffness in Healthy Subjects: A Systematic Review and Meta-Analysis. CURRENT HYPERTENSION REPORTS, v. 22, n. 8 JUL 15 2020. Web of Science Citations: 0.
DE BRITO, LEANDRO CAMPOS; FECCHIO, RAFAEL YOKOYAMA; PECANHA, TIAGO; LIMA, ALUISIO; HALLIWILL, JOHN; DE MORAES FORJAZ, CLAUDIA LUCIA. Recommendations in Post-exercise Hypotension: Concerns, Best Practices and Interpretation. INTERNATIONAL JOURNAL OF SPORTS MEDICINE, v. 40, n. 8, p. 487-497, AUG 2019. Web of Science Citations: 1.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.