Energy system contribution in a maximal incremental test: correlations with pacing and overall performance in a 10-km running trial

Autor(es)

Damasceno, M. V. ^[1] ; Pasqua, L. A. ^[1] ; Lima-Silva, A. E. ^[2] ; Bertuzzi, R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Escola Educ Fis & Esporte, Dept Esporte, Grp Estudos Desempenho Aerobio USP GEDAE USP, Sao Paulo, SP - Brazil

^[2] Univ Fed Pernambuco, Ctr Acad Vitoria, Grp Pesquisa Ciencia Esportes, Vitoria De Santo Antao, PE - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Medical and Biological Research; v. 48, n. 11, p. 1048-1054, NOV 2015.
• Citações Web of Science: 2

Resumo

This study aimed to verify the association between the contribution of energy systems during an incremental exercise test (IET), pacing, and performance during a 10-km running time trial. Thirteen male recreational runners completed an incremental exercise test on a treadmill to determine the respiratory compensation point (RCP), maximal oxygen uptake ( V ˙ O 2 max), peak treadmill speed (PTS), and energy systems contribution; and a 10-km running time trial (T10-km) to determine endurance performance. The fractions of the aerobic (WAER) and glycolytic (WGLYCOL) contributions were calculated for each stage based on the oxygen uptake and the oxygen energy equivalents derived by blood lactate accumulation, respectively. Total metabolic demand (WTOTAL) was the sum of these two energy systems. Endurance performance during the T10-km was moderately correlated with RCP, V ˙ O 2 max and PTS (P<@0.05), and moderate-to-highly correlated with WAER, WGLYCOL, and WTOTAL (P<0.05). In addition, WAER, WGLYCOL, and WTOTAL were also significantly correlated with running speed in the middle (P<0.01) and final (P<0.01) sections of the T10-km. These findings suggest that the assessment of energy contribution during IET is potentially useful as an alternative variable in the evaluation of endurance runners, especially because of its relationship with specific parts of a long-distance race. (AU)

• Processo FAPESP: 11/10742-9 - O treinamento de força é capaz de alterar a estratégia de corrida em uma prova de 10 km?
• Beneficiário: Rômulo Cássio de Moraes Bertuzzi
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 13/00371-9 - Influência do treinamento de força sobre a estratégia de prova em uma corrida de 10km
• Beneficiário: Mayara Vieira Damasceno
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto