Effects of strength training on bioenergetics parameters determined at velocity corresponding to maximal oxygen uptake in endurance runners

Autor(es)

Damasceno, M. ^[1] ; Pasqua, L. ^[1] ; Gaspari, A. ^[1] ; Araujo, G. ^{[2, 3]} ; de-Oliveira, F. ^[4] ; Lima-Silva, A. ^[5] ; Bertuzzi, R. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Sch Phys Educ & Sport, Endurance Performance Res Grp GEDAE USP, Sao Paulo, SP - Brazil

^[2] Univ Fed Alagoas, Dept Phys Educ, Appl Sci Sport Res Grp GPCAE, Alagoas, Maceio - Brazil

^[3] Univ Fed Alagoas, PPGNUT, Alagoas, Maceio - Brazil

^[4] Univ Fed Lavras, Dept Phys Educ, Ctr Studies Phys Exercise Prescript NEPEF, Lavras - Brazil

^[5] Univ Fed Pernambuco, Dept Phys Educ & Sports Sci CAV, Sports Sci Res Grp, Vitoria De Santo Antao, PE - Brazil

• Tipo de documento: Artigo Científico
• Fonte: SCIENCE & SPORTS; v. 33, n. 6, p. E263-E270, DEC 2018.
• Citações Web of Science: 0

Resumo

Objectives. -The present study analyzes the impact of a strength training program on bioenergetics parameters determined at velocity corresponding to maximal oxygen uptake (v(V)over dotO(2) max). Methods. - Sixteen recreational long-distance runners were divided into strength training (STG, n= 9) and control (CG, n=7) groups. Before and after 8 weeks, the volunteers performed: maximal incremental treadmill test, constant-speed running at pre-training v(V)over dotO(2) max, and maximum dynamic strength test (1RM). Energy cost of running (ECr), and aerobic (A(MEA)) and anaerobic (AN(MET)) metabolism contributions were estimated at v(V)over dotO(2) max. Results. - No differences were observed at baseline between groups (P> 0.05). After experimental period, there was an increase in 1RM for STG (27 +/- 18%, P=0.008), but not for CG (P> 0.05). The changes in ECr (pre =0.254 +/- 0.038 vs. post =0.255 +/- 0.037 kJ.m(-1)), A(MET)(pre = 191.5 +26.2 vs. post =193.0 +/- 31.7 kJ), and AN(MET)(pre =20.9 +/- 6.4 vs. post = 21.0 +/- 5.7 kJ) were not significant different (P> 0.05) to STG; as well as to CG (ECr - pre = 0.260 +/- 0.046 vs. post = 0.259 +/- 0.034 kJ.m(-1), A(MET) - pre = 209.7 +/- 30.2 vs. post =203.3 +/- 26.6 kJ, and AN(MET) - pre= 19.3 +/- 6.4 vs. post = 23.9 +/- 4.6 kJ). Conclusions.-These findings suggest that 8 weeks strength training improved the maximum dynamic strength and did not alter bioenergetics parameters measured at v(V)over dot O-2 max in recreational endurance runners. (C) 2018 Elsevier Masson SAS. All rights reserved. (AU)

• 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
• 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