title: Influence of repeated bouts of eccentric exercise on high-intensity aerobic performance.
abstract: [Purpose] It is believed that eccentric high-intensity exercise can decrease performance in subsequent exercise. However, with repetition, the deleterious effects can be minimized. Thus, this study evaluated the influence of repeated bouts of eccentric exercise on subsequent high-intensity aerobic performance. [Subjects and Methods] Seven healthy and sedentary male volunteers were recruited. a) Visit 1: determination of maximum oxygen uptake (VO2max) and speed associated with maximum oxygen uptake (vVO2max) in incremental treadmill testing; b) Visit 2: run to exhaustion at vVO2max (Tlim control); c) Visit 3: 10 sets of 10 depth jumps, followed by a run to exhaustion at vVO2max (Tlim 1); d) Visit 4: after 6 weeks without any physical training, the volunteers carried out the same procedures as on the third visit (Tlim 2). Data were analyzed using one-way analysis of variance (ANOVA) with the post-hoc Tukey test. [Results] Significant differences were found between Tlim control and Tlim 1 (283.4 ± 47.7 s vs. 125.2 ± 64.1 s, respectively), these were not different from Tlim 2. [Conclusion] Eccentric exercise showed deleterious effects on subsequent high-intensity aerobic performance. These effects were minimized after the exercise protocol was repeated 6 weeks after the first event.
authors.affiliation: Group of Studies and Research in Health Sciences (GEP-CS), Federal Institute of Education, Science and Technology of the South of Minas Gerais (IFSULDEMINAS): Estrada de Muzambinho, km 35, Caixa Postal 02, 37890-000, Muzambinho, MG, Brazil.
authors.forename: Wonder Passoni
authors.initials: WP
authors.lastname: Higino
authors.affiliation: Group of Studies and Research in Health Sciences (GEP-CS), Federal Institute of Education, Science and Technology of the South of Minas Gerais (IFSULDEMINAS): Estrada de Muzambinho, km 35, Caixa Postal 02, 37890-000, Muzambinho, MG, Brazil.
authors.forename: Renato
authors.initials: R
authors.lastname: Aparecido de Souza
authors.affiliation: Centro Universitário Católico Salesiano Auxilium (UNISALESIANO), Brazil.
authors.forename: Fabio de Sousa
authors.initials: Fde S
authors.lastname: Cavalcanti
authors.affiliation: Centro Universitário Católico Salesiano Auxilium (UNISALESIANO), Brazil.
authors.forename: Anderlei Dos Santos
authors.initials: Ados S
authors.lastname: Cardoso
authors.affiliation: Centro Universitário Católico Salesiano Auxilium (UNISALESIANO), Brazil.
authors.forename: Murilo Victor
authors.initials: MV
authors.lastname: Vasconcelos
authors.affiliation: Group of Studies and Research in Health Sciences (GEP-CS), Federal Institute of Education, Science and Technology of the South of Minas Gerais (IFSULDEMINAS): Estrada de Muzambinho, km 35, Caixa Postal 02, 37890-000, Muzambinho, MG, Brazil; Biomedical Engineering Institute, Camilo Castelo Branco University (UNICASTELO), Brazil.
authors.forename: Fabiano
authors.initials: F
authors.lastname: Fernandes da Silva
authors.affiliation: Centro Universitário Católico Salesiano Auxilium (UNISALESIANO), Brazil.
authors.forename: José Alexandre C A
authors.initials: JA
authors.lastname: Leme
keywords: Fatigue; Repeated bout effect; Time to exhaustion