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Fatigue process during supramaximal effort: Analysis of central and peripherical mechanisms, muscular acidosis, energetic substrate, enzymatic activity and metabolic

Grant number: 18/21126-6
Support type:Regular Research Grants
Duration: August 01, 2019 - January 31, 2022
Field of knowledge:Health Sciences - Physical Education
Principal researcher:Alessandro Moura Zagatto
Grantee:Alessandro Moura Zagatto
Home Institution: Faculdade de Ciências (FC). Universidade Estadual Paulista (UNESP). Campus de Bauru. Bauru , SP, Brazil
Assoc. researchers: DANIEL ALEXANDRE BOULLOSA ÁLVAREZ ; Fabio Milioni

Abstract

The main purpose of research project will be investigate the mechanisms engaged in fatigue during supramaximal effort in cycling, as well as if these mechanisms are altered with exercise training (i.e.. high-intensity interval training). Therefore, will be used the twitch interpolation technical to measure the central e peripheral fatigue, neuromuscular responses with electromyography response and isometric force, muscle biopsies before and immediately after the exhaustion for analyzing of muscle buffering capacity, muscular pH and enzymatic and metabolic responses, as well as verify the effect of high intensity interval training in these parameters. To answer the main question of project will be performed 2 independent studies, both with minimal 10 participants. The study A will be conducted with muscle biopsies before and after exercise to verify the main metabolics engaged in the fatigue using the metabolomic technical, while the study B will focus in responses of training on rate of use substrate content (muscle biopsy in resting before and after the training) and central and pheripherical fatigue. (AU)

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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)
ZAGATTO, ALESSANDRO M.; BISHOP, DAVID J.; ANTUNES, BARBARA MOURA; BECK, WLADIMIR R.; MALTA, ELVIS S.; DE POLI, RODRIGO A. B.; CAVAGLIERI, CLAUDIA R.; CHACON-MIKAHIL, MARA PATRICIA T.; CASTRO, ALEX. Impacts of high-intensity exercise on the metabolomics profile of human skeletal muscle tissue. SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS, v. 32, n. 2, . (20/13939-7, 17/21724-8, 19/25282-5, 18/21126-6)
BONETTI DE POLI, RODRIGO ARAUJO; FIALHO LOPES, VITHOR HUGO; LIRA, FABIO SANTOS; ZAGATTO, ALESSANDRO MOURA; JIMENEZ-MALDONADO, ALBERTO; ANTUNES, BARBARA MOURA. Peripheral BDNF and psycho-behavioral aspects are positively modulated by high-intensity intermittent exercise and fitness in healthy women. SCIENTIFIC REPORTS, v. 11, n. 1, . (19/22726-0, 19/17445-1, 19/25282-5, 18/21126-6)

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