Heart rate recovery after the exercise: influence of neural mechanisms

• Register: REBEC
• Last refreshed on: 29 May 2023
• Main ID: RBR-5nw65z
• Date of registration: 21/05/2015
• Prospective Registration: No
• Primary sponsor: Escola de Educação Física e Esporte da Universidade de São Paulo
• Public title: Heart rate recovery after the exercise: influence of neural mechanisms
• Scientific title: Heart rate recovery after exercise: regulatory mechanisms
• Date of first enrolment: 01/01/2014
• Recruitment status: Recruiting
• URL: http://ensaiosclinicos.gov.br/rg/RBR-5nw65z
• Study type: Intervention
• Study design: Crossover clinical trial, randomized, crossover, open, with two arms
• Phase: N/A

Countries of recruitment

Brazil

Contacts

• Name: Claudia Lucia de Moraes Forjaz
• Affiliation: Escola de Educação Física e Esporte da Universidade de São Paulo

• Name: Claudia Lucia de Moraes Forjaz
• Affiliation: Escola de Educação Física e Esporte da Universidade de São Paulo

Key inclusion & exclusion criteria

Inclusion criteria: Men. Aged between 40 and 60 years. Non smokers. Physically inactives (did not perform physical activity more than twice a week). Normotensives and hypertensives will form different groups. Hypertensives should not have end organ damage or secondary causes of hypertension according to the diagnotic rotine of the Hypertension League of Clinical Hospital, Faculty of Medicine, USP.
Exclusion criteria: Subjects with obesity level 2 or greater(body mass index equal or greater than 35 kg/m2). Subjects with diabetes (fasting glycemia equal or greater than 126 mg/dl). Subjects with cardiac diseases (previous diagnosis or alteration on resting or exercise ECG). Use of anti-hypertensive medication.

Age minimum: 40Y
Age maximum: 60Y
Gender: M

Health Condition(s) or Problem(s) studied

Hypertension

C14.907.489

Intervention(s)

Other

Experimental groups: 25 hypertensive men will perform 5 experimental sessions composed by a exercise on cyclergometer (30 minutes, intensity of 70% of the VO2peak workload) and 5 recovery protocols: a)inactive recovery; b) active recovery; c) assisted recovery; d) occlusion recovery; e) recovery with cooling. In addition, 25 normotensive men will perform the same interventions and will be considered the control group of this study.

F01.145.632

Primary Outcome(s)

Reduced heart rate recovery in the sessions "active", "assisted" and "with occlusion" and increased in the sessions "inactive" and "with cooling"; demonstrating the effects of the cardiovascular control mechanisms in the regulation of heart rate recovery after exercise

Secondary Outcome(s)

Reduced heart rate recovery in hypertensive group in comparison to normotensive due to dysfunction of one or several cardiovascular control mechanisms

Source(s) of Monetary Support

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Fundação de Amparo à Pesquisa do Estado de São Paulo

Secondary Sponsor(s)

Laboratório de Hipertensão do Hospital das Clínicas da Faculdade de Medicina da USP