Banca de QUALIFICAÇÃO: RUBENS VASCO MARINHO

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : RUBENS VASCO MARINHO
DATE: 27/05/2025
TIME: 08:30
LOCAL: Sala de reuniões do LACAE/IEFE - Estádio Universitário
TITLE:

The influence of different intensities of exertion on respiratory regulatory mechanisms, neuromuscular activation, and psychophysiological scales on the cycle ergometer to exhaustion.

KEY WORDS:

Fatigue;Physical Exercise;Electromyography;Tidal Volume

PAGES: 46
BIG AREA: Ciências da Saúde
AREA: Educação Física
SUMMARY:

Physical exercise induces multiple and simultaneous chemical, metabolic and physiological reactions in the intra and extracellular environment with the aim of preventing excessive changes in the body's balance. The classical assumption establishes that with the increase in exercise intensity there is a rapid increase in minute ventilation, as an attempt to regulate the new oxygen demand and to cause the removal of the additional formation of carbon dioxide, which occurs as a consequence of metabolic acidosis. However, emerging evidence has suggested that minute ventilation would not be related only to the state of acidosis, and that its influencing variables, respiratory rate and tidal volume, could present different control mechanisms that can be influenced by different exercise domains. Thus, the objective of the present project is to evaluate the influence of different domains of effort intensity on the control of respiratory rate and tidal volume in exercise until exhaustion, in the same individual. In the first visit, a progressive ramp test will be performed to identify peak muscle power (Ppeak), peak oxygen consumption, second ventilatory threshold (V2), respiratory rate (fR) and tidal volume (VT). The other experimental visits will be performed in random order. The subsequent sessions will be for the time-to-exhaustion tests, and for this, two exercise intensities will be prescribed based on the ramp test, one at 80% of V2 (intense intensity) and the other at 110% of V2 (severe intensity). The cardiorespiratory variables (VO2, VCO2, VE, fR, VT, HR), electromyography, and perception of effort, activation, and affectivity will be continuously monitored. This proposal is expected to identify the relationship between CO2 production, as well as muscle activity and psychophysiological aspects during the proposed exercises with the respiratory variables, understanding the need to look individually at each type of exercise.

COMMITTEE MEMBERS:
Externo(a) à Instituição - AMANDA PIAIA SILVATTI - UFV
Presidente - 3138872 - FILIPE ANTONIO DE BARROS SOUSA
Interno(a) - 1878467 - GUSTAVO GOMES DE ARAUJO