Abstract
Objective. To assess the difference in physical fitness of players in successful versus less-successful professional soccer teams in South Africa. Design. Professional soccer players (N = 140) underwent a battery of tests assessing important physiological components during the early part of their competitive season. Players were then separated into two groups on the basis of their teams' final log position in the Premier Soccer League (PSL) in South Africa. Players in successful (N = 70) and less-successful (N = 70) teams were in the top four or bottom six positions on the log respectively. Descriptive statistics (mean ± standard deviation (SD)) were calculated for each group, and independent t-tests were used to compare the means of the groups for each of the physical tests. Main outcome measures. Body composition, flexibility, muscle strength-endurance, power, speed, agility, aerobic endurance, and repeat sprint distance. Results. There were no significant differences between groups for all measures of body composition, flexibility, repeat sprint distance, and agility. Significant differences (p < 0.05) were found for sit-ups, aerobic endurance, and speed, but these were generally small, not meaningful differences in performance. Players in successful squads were significantly (p < 0.01) older than those in less-successful teams. Conclusions. The results demonstrate that in South Africa level of physical fitness is not higher in more-successful compared with less-successful teams in the PSL. Factors other than physical fitness may be more important in determining successful league performance and discrimi-nate better between players in teams with different levels of success. Improving professional soccer performance may require coaches and trainers to focus more attention on technical and tactical skill development in sport-specific training once an acceptable standard of fitness has been attained.. South African Journal of Sports Medicine Vol. 19 (2) 2007: pp. 40-45
Highlights
There were no significant differences between groups for all measures of body composition, flexibility, repeat sprint distance, and agility
The results demonstrate that in South Africa level of physical fitness is not higher in more-successful compared with less-successful teams in the Premier Soccer League (PSL)
Factors other than physical fitness may be more important in determining successful league performance and discrimi
Summary
One-hundred-and-forty players from professional teams in the Premier Soccer League (PSL) in South Africa were recruited for the study. The physical testing formed part of the ongoing physical assessment programmes for the teams. Players declared medically fit to participate in all the testing by the team doctors were included. All players were briefed on the purpose, benefits and risks involved in the testing, and all completed written informed consent forms. Subjects were assigned to one of two groups based on their teams’ final league position at the end of the season in which they were tested. Teams were classified as successful or unsuccessful by finishing in the top four or bottom six positions of the PSL log, respectively
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