![]() ![]() ![]() Importantly, our results provoke the hypothesis that an effective medical staff may contribute to team success by implementing evidence-based injury prevention strategies. #Password real football 2012 professionalAs frequency of matches is a risk factor for injuries in professional football, 14 European top teams who play more matches than lower level teams may show an inverse correlation between injury and team success. We note that the number of matches played in the Qatari league is relatively small (compared with English Premier League, La Liga, etc). With this number of teams, most are aiming to win the league, qualify for the Continental cup or avoid relegation. We feel that differences in motivation were unlikely to be a confounding factor in team success in the Qatar Stars League, because there are only 10 teams, as compared with up to 20 in some major national leagues. Motivation is also a potential consideration in team success. The team performs harmoniously and with a specific tactical system, supporting the notion to ‘never change a winning team’. 13 However, teams with lower injury incidence could be more successful because of the advantage of having footballers who are familiar with playing together. However, it may also explain the lack of correlation between team success and total injury time loss, which has been previously hypothesised having a direct effect on team success. This may bias our study results, because the replacement player may influence the team's final ranking without being included in the epidemiological study. Second, in the Qatari Football Association, players who have long-term injuries (unable to play >6 weeks) can be replaced in the team roster. Three of the 10 clubs were excluded as outlined above. #Password real football 2012 registrationFirst, we cannot exclude registration bias. 12 Several other studies have investigated the relationship between physical condition and individual success, but not any measures of team success. 11 There was a strong correlation between aerobic capacity (VO2max) and World Cup ranking in alpine skiing. ![]() 10 In ice hockey, aerobic capacity was related to individual on-ice performance in the US national first-division players. A study in the Norwegian elite football league demonstrated higher pre-season VO2max scores from the highest- compared with the lowest-ranking team. The relationship of physical fitness with team as well as individual success has been more extensively proven. 6 Ekstrand et al 7 found no association between injury incidence and team success but they reported a correlation between more frequent training and higher ranking however, they focused on amateur footballers. 5 In a 15-season study of one French professional football team, injury rate did not correlate with team ranking. Previous literature on such a correlation has been inconclusive, but one study described a trend towards a better final league ranking and fewer injury days in Icelandic elite clubs. This is the first study describing a strong correlation between lower injury incidence rate and superior team success in professional football. Ethical approval was granted by the Institutional Human Research Ethics Committee, Aspetar Hospital, Doha, Qatar. Club performance was measured by total league points, ranking, goal scored, goals conceded and number of matches won, drawn or lost. One investigator (CE) validated the clubs’ self-reported injury data by discussing them with the team physician/physiotherapist and by comparing against the injuries seen at the central treating centre-the Aspetar Qatar Orthopaedic and Sport Medicine Hospital. Players who were already injured at the beginning of the study were included, but that injury was not incorporated into the results new players recruited during the study period were not included. We followed the consensus on definitions and data collection procedures in studies of football injuries 8 and recorded only time loss injuries. At the beginning of the season, we presented the study objective and methods, consisting in a prospective record of individual exposure and injuries for each first team player, to all 10 first-division clubs and all teams joined the study.Ī single doctor or physiotherapist for each club recorded data daily on standardised attendance record and injury cards for each player. A prospective cohort study of exposure and injuries in Qatar male elite football was carried out between August 2008 and April 2009. ![]()
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