Cabral, Breno Guilherme de Araújo TinôcoSilva, José Francisco da2024-02-062024-02-062023-09-22SILVA, José Francisco da. Efeito agudo da oclusão vascular e do pré-condicionamento isquêmico no desempenho em corredores de Endurance. Orientador: Dr. Breno Guilherme de Araújo Tinôco Cabral. 2023. 111f. Dissertação (Mestrado em Educação Física) - Centro de Ciências da Saúde, Universidade Federal do Rio Grande do Norte, Natal, 2023.https://repositorio.ufrn.br/handle/123456789/57542The vascular occlusion method comprises the moderate restriction of arterial blood flow to the muscle in activity, the ischemic preconditioning represents the performance of short periods of arterial ischemia, generating total obstruction of arterial flow in the lower or upper limbs before exercise. The aim of this study was to verify the acute effects of vascular occlusion and ischemic preconditioning on performance in endurance runners. The present study was built based on the findings produced in two articles, one review article and one experimental article. The review article involved experimental studies published until September 2021 in the Web of Science databases (Categories: Sports Science and Physiology), PubMed and SPORTDicus. At the end of the selection of evidence sources, 22 articles were included in the review, published between 2011 and 2021, covering a total of 304 individuals (men, n= 275; women, n= 29) with a mean age ranging from 20 and 29.6 years, all eligible and included studies were clinical trials and experimental studies. From all the findings in this review, a selection of studies that dealt with the acute effects of vascular occlusion on aerobic performance was made. The second article consisted of a randomized, controlled, crossed and single-blind crossover clinical trial. The sample consisted of 26 male amateur runners, with a mean age of 31.85 years (±7.35), mean body mass index of 24.96 (±2.99), mean height of 1. 70m (±0.06) and mean body surface area of 2.95m² (±0.10). The average mark in the 5kms and 10kms distance of the study participants was 21.05min (±2.59) and 44.26min (±5.39) respectively. Participants underwent the following interventions: (i) IPC + maximum incremental test or (ii) Control/Placebo + maximum incremental test. The mean time to exhaustion was greater in the CPI condition compared to the Placebo condition (CPI - 1184sec ±202; Placebo - 1150sec ±189), but no statistically significant difference (p˂0.135) was identified between the conditions. The mean HR of the sample during the incremental tests of maximum running speed from 8km/h to 13km/h, when comparing the IPC x Placebo conditions, did not present any significant difference (p˂0.066). Mean oxygen saturation between speeds from 8km/h to 13km/h did not present any significant difference (p˂0.236), when comparing IPC x Placebo conditions. It is concluded that the use of flow restriction during an aerobic exercise session does not have a positive effect on performance, however, its application in resistance exercise with low load can be a viable strategy with endurance athletes for the maintenance and improvement of levels of hypertrophy and mainly muscle strength, therefore, there is no obligation to submit these athletes to a high load during the resistance training session, with the objective of improving their strength levels for the sport practiced. It is also possible to conclude that the ischemic preconditioning protocol applied did not generate a significant effect in improving the time to exhaustion in the male runners analyzed. However, it is possible that different protocols of ischemic preconditioning can be considered as an alternative way to improve running performance, being necessary for this affirmation, the accomplishment of new studies with different methods.Acesso AbertoOclusão vascularForça muscularIsquemiaEndurancemasterThesisCNPQ::CIENCIAS DA SAUDE::EDUCACAO FISICA