Evaluation of post-exercise hypotensive effects in different phases of the day

Author(s)

Marco Aurelio Gomes de Oliveira

• Document type: Master's Dissertation
• Press: São Paulo.
• Institution: Universidade de São Paulo (USP). Instituto de Psicologia (IP/SBD)
• Defense date: 2014-12-12

Examining board members

Luiz Silveira Menna Barreto; Flávio de Oliveira Pires; Ana Amélia Benedito Silva

• Advisor: Luiz Silveira Menna Barreto

Abstract

Post exercise hypotension is a phenomenon of decreased blood pressure by minutes or hours after physical exercise, being considered a physiological response in blood pressure control. Factors such as blood pressure level, physical ability and type of exercise, contribute to potentiate post exercise hypotension, however, despite being known that blood pressure has no constant value over 24 hours, still not been investigated whether there are differences in the hypotensive response when exercise is performed at different times of the day. In view of this, 16 women were divided into two groups; Mature adults (n = 8; 58.7 ± 10.9 years) and Young Adults (n = 8; 21 ± 4.3 years). Each group performed three experimental sessions; two with low intensity resitance exercise (tem exercise at 40% one repetition maximum) was performed at two phases, morning (07: 30h) and night (18: 00h), and a control session without performing physical exercise. Blood pressure was measured during 24 hours after the sessions, perception of discomfort assessed by inventory. We describe that: We did not found blood pressure reduction in Young Adults group for none of the phases. We observed intermittently post-exercise hypotension Mature Adults group for five hours in mean arterial pressure after morning exercise. Based on Fourier Analysis and own observation mean arterial pressure behavior, we can observe that the morning exercise attenuated ultradian pressor pattern, As a result, average blood pressure levels remained below than control session; (2) In assessing the perception of discomfort, Young Adults group compared with Mature Adults group, showed greater discomfort to perform the exercise in the morning phase, during nightly exercise, we found little perception of discomfort change in Young Adults and Mature adults (AU)

• FAPESP's process: 12/16197-5 - Evaluation of post-exercise hypotensive effects in different phases of the day
• Grantee: Marco Aurélio Gomes de Oliveira
• Support Opportunities: Scholarships in Brazil - Master