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- Title
The evolution of the individual factors performance in the elite of the world soccer, between 1970 and 1998.
- Authors
Moreira, Sérgio Bastos
- Abstract
Introduction: changes in some rules and evolution of tactical outlines, in the last 35 years flagrantly altered not only the way to play soccer, as well the players' morphologic aspect, who were forced to adapt themselves to the new demands, as for the corporal composition, displacement speed, muscular potency, anaerobic threshold speed (ANt), maximum consumption of oxygen (VO2max), maximum aerobic speed (MAS), maximum aerobic potency (MAP), anaerobic potency (AnP), anaerobic capacity of work in 30s (AnC) and anaerobic fatigue (AnF), among other varies. Materials and Methods: with the aim to check some changes in these indicators, the Brazilian Selection was observed regarding the profi les presented in 1970, 1990, 1994 and 1998. Results: In the comparisons among components of the somatotype, just the mesomorphy was considered significantly larger (p<0.01) in the team of 1990, in relation to the team of 1994. As for the endomorphy and to the ectomorphy, there were not significant differences. There was a significant decrease (p<0.05) of the body fat in 1998, in relation to the team of 1994. The average height of the selections in 1990 and 1994 did not present signifi cant differences (p>0.05). In spite of not having shown any signifi cant difference (p>0.05) among the adult team of 1994 and the selection that disputed the sub 17 World Championship in 1998, the average ANt presented a significant decrease (p<0.001) in the adult team of 1998 when compared to the team of 1994. The comparisons among AnP, AnC and AnF of the selections of 1994 and 1998 didn't proved signifi cant differences (p>0.05). The average MAS of the three times world champion team of 1970 was significantly smaller (p<0.05) than of the four times world champion team, of 1994, however there was neither alteration in PAM nor in VO2max. Discussion: the fact that MAS have increased and MAS and VO2max have not been altered, suggests that, in 1994, the players may have been more skillful in terms of technical ability to run, what allowed them to develop a larger speed with the same consumption of oxygen. The selection's performance was, therefore, more economical than the performance of 1970's team and worked as if the team of 1994 had a virtually larger VO2max. Probably, the largest energy expense for the same running speed registered in the selection of 1970 was due to the fact that the World cup of that time had been disputed in Mexico's altitude, where the data were collected.
- Subjects
PHYSIOLOGICAL effects of oxygen; ANAEROBIC threshold; OXYGEN consumption; MORPHOLOGY; ELITE (Social sciences); SOCCER
- Publication
Fitness & Performance Journal (Online Edition), 2008, Vol 7, Issue 2, p107
- ISSN
1519-9088
- Publication type
Article
- DOI
10.3900/fpj.7.2.107.e