Complex network models reveal correlations among network metrics, exercise intensity and role of body changes in the fatigue process

Autor(es)

Pereira, Vanessa Helena ^[1] ; Traina Gama, Maria Carolina ^[1] ; Barros Sousa, Filipe Antonio ^[1] ; Lewis, Theodore Gyle ^[2] ; Gobatto, Claudio Alexandre ^[1] ; Manchado-Gobatto, Fulvia Barros ^[1]

Afiliação do(s) autor(es)

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

^[2] Ctr Homeland Def & Secur, Naval Postgrad Sch, Monterey, CA 93943 - USA

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 5, MAY 21 2015.
• Citações Web of Science: 7

Resumo

The aims of the present study were analyze the fatigue process at distinct intensity efforts and to investigate its occurrence as interactions at distinct body changes during exercise, using complex network models. For this, participants were submitted to four different running intensities until exhaustion, accomplished in a non-motorized treadmill using a tethered system. The intensities were selected according to critical power model. Mechanical (force, peak power, mean power, velocity and work) and physiological related parameters (heart rate, blood lactate, time until peak blood lactate concentration (lactate time), lean mass, anaerobic and aerobic capacities) and IPAQ score were obtained during exercises and it was used to construction of four complex network models. Such models have both, theoretical and mathematical value, and enables us to perceive new insights that go beyond conventional analysis. From these, we ranked the influences of each node at the fatigue process. Our results shows that nodes, links and network metrics are sensibility according to increase of efforts intensities, been the velocity a key factor to exercise maintenance at models/intensities 1 and 2 (higher time efforts) and force and power at models 3 and 4, highlighting mechanical variables in the exhaustion occurrence and even training prescription applications. (AU)

• Processo FAPESP: 09/08535-5 - Padronização e validação de testes aeróbios e anaeróbios em condições de campo e laboratório, utilizando modelos livre, atado e semi-atado, em corredores fundistas e velocistas
• Beneficiário: Claudio Alexandre Gobatto
• Linha de fomento: Auxílio à Pesquisa - Regular
• Processo FAPESP: 12/06355-2 - Padronização de testes específicos livres e atados, para determinação de parâmetros aeróbios e anaeróbios em canoagem slalom: relações com a performance
• Beneficiário: Fúlvia de Barros Manchado Gobatto
• Linha de fomento: Auxílio à Pesquisa - Regular