omplex networks analysis reinforces centrality hematological role on aerobic-anaerobic performances of the Brazilian Paralympic endurance team after altitude trainin

Author(s)

Breda, Fabio Leandro ^[1] ; Manchado-Gobatto, Fulvia Barros ^[1] ; de Barros Sousa, Filipe Antonio ^[1] ; Beck, Wladimir Rafael ^[2] ; Pinto, Allan ^{[3, 4]} ; Papoti, Marcelo ^[5] ; Menezes Scariot, Pedro Paulo ^[1] ; Gobatto, Claudio Alexandre ^[1]

Affiliation

^[1] Univ Estadual Campinas, Lab Appl Sport Physiol, Sch Appl Sci, Rua Pedro Zaccaria 1-300, BR-13484350 Limeira, SP - Brazil

^[2] Univ Fed Sao Carlos, Dept Physiol Sci, Lab Endocrine Physiol & Phys Exercise, Sao Carlos, SP - Brazil

^[3] Univ Estadual Campinas, Sch Phys Educ, Campinas, SP - Brazil

^[4] Brazilian Ctr Res Energy & Mat, Brazilian Synchrotron Light Lab, Campinas, SP - Brazil

^[5] Univ Sao Paulo, Sch Phys Educ & Sport Ribeirao Preto, Ribeirao Preto, SP - Brazil

• Document type: Journal article
• Source: SCIENTIFIC REPORTS; v. 12, n. 1 JAN 21 2022.
• Web of Science Citations: 0

Abstract

This study investigated the 30-days altitude training (2500 m, LHTH-live and training high) on hematological responses and aerobic-anaerobic performances parameters of high-level Paralympic athletes. Aerobic capacity was assessed by 3000 m run, and anaerobic variables (velocity, force and mechanical power) by a maximal 30-s semi-tethered running test (AO30). These assessments were carried out at low altitude before (PRE) and after LHTH (5-6 and 15-16 days, POST1 and POST2, respectively). During LHTH, hematological analyzes were performed on days 1, 12, 20 and 30. After LHTH, aerobic performance decreased 1.7% in POST1, but showed an amazing increase in POST2 (15.4 s reduction in the 3000 m test, 2.8%). Regarding anaerobic parameters, athletes showed a reduction in velocity, force and power in POST1, but velocity and power returned to their initial conditions in POST2. In addition, all participants had higher hemoglobin (Hb) values at the end of LHTH (30 days), but at POST2 these results were close to those of PRE. The centrality metrics obtained by complex networks (pondered degree, pagerank and betweenness) in the PRE and POST2 scenarios highlighted hemoglobin, hematocrit (Hct) and minimum force, velocity and power, suggesting these variables on the way to increasing endurance performance. The Jaccard's distance metrics showed dissimilarity between the PRE and POST2 graphs, and Hb and Hct as more prominent nodes for all centrality metrics. These results indicate that adaptive process from LHTH was highlighted by the complex networks, which can help understanding the better aerobic performance at low altitude after 16 days in Paralympic athletes. (AU)

• FAPESP's process: 20/11946-6 - Effects of altitude training on aerobic and anaerobic parameters, muscle oxygenation and performance in elite athletes: an integrated analysis by complex network model
• Grantee: Fúlvia de Barros Manchado Gobatto
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/05115-7 - Effects of aerobic training and the hypoxic environment on molecular responses related to anaerobic and aerobic metabolism and acid-base properties in the hypothalamus and skeletal muscle of mice
• Grantee: Pedro Paulo Menezes Scariot
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 19/16253-1 - Unraveling the secret of Brazilian and Dutch soccer by capturing successful elements of playing style and playing strategies
• Grantee: Allan da Silva Pinto
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 13/16710-7 - Validity and reliability of anaerobic power and capacity parameters derived from one test session in tethered running
• Grantee: Filipe Antônio de Barros Sousa
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 16/12781-5 - Metabolic, hematologic and neuromuscular adaptations from training from "sleep high and train low", followed by taper period: A and randomized double-blind study.
• Grantee: Marcelo Papoti
• Support Opportunities: Regular Research Grants
• FAPESP's process: 09/08535-5 - Standardization and validity of aerobic and anaerobic tests in field and laboratory, using free, tethered and half-tethered running, in endurance and sprint runners
• Grantee: Claudio Alexandre Gobatto
• Support Opportunities: Regular Research Grants
• FAPESP's process: 12/06355-2 - Standardization of free and tethered specific tests to determine the aerobic and anaerobic parameters in slalom kayak: relationship with the performance
• Grantee: Fúlvia de Barros Manchado Gobatto
• Support Opportunities: Regular Research Grants