RT Journal Article
SR Electronic
T1 Muscle injury rates in professional football increase with fixture congestion: an 11-year follow-up of the UEFA Champions League injury study
JF British Journal of Sports Medicine
JO Br J Sports Med
FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine
SP 743
OP 747
DO 10.1136/bjsports-2013-092383
VO 47
IS 12
A1 Bengtsson, Håkan
A1 Ekstrand, Jan
A1 Hägglund, Martin
YR 2013
UL http://bjsm.bmj.com/content/47/12/743.abstract
AB Background The influence of fixture congestion on injury rates and team performance has only been scarcely investigated. Aim To study associations between recovery time and match load and injury rates and team performance in professional football. Methods Exposure and time loss injuries were registered prospectively from 27 teams over 11 seasons. Matches were grouped according to recovery days before each match (≤3 vs >3 days, and ≤4 vs ≥6 days). Injury rates and team performance were compared between groups. Match load in match sequences containing five consecutive matches was determined by the number of days separating the first match and the last training session during that match sequence. Linear regression was used to study associations between match load and injury rates and team performance. Results Team performance showed no association with match load, or recovery days prior to matches, except for Europa League matches that indicated more matches lost with short recovery (≤3 days) (p=0.048). Total injury rates and muscle injury rates were increased in league matches with ≤4 days compared with ≥6 days’ recovery (RR 1.09, 95% CI 1.00 to 1.18, and RR 1.32, 95% CI 1.15 to 1.51, respectively), specifically hamstring and quadriceps injuries. High match load was associated with increase in muscle injury rate in matches in the same match sequence (p=0.012), and increase in ligament injury rate in training in the subsequent match sequence (p=0.003). Conclusions Fixture congestion was associated with increased muscle injury rates but had no, or very limited, influence on team performance.