Biology of Sport
eISSN: 2083-1862
ISSN: 0860-021X
Biology of Sport
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4/2023
vol. 40
 
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abstract:
Original paper

Exposures to near-to-maximal speed running bouts during different turnarounds in elite football: association with match hamstring injuries

Martin Buchheit
1, 2, 3
,
Maxime Settembre
1
,
Karim Hader
1
,
Derek McHugh
1

  1. Kitman Labs, Dublin, Ireland
  2. Lille OSC, Lille, France
  3. HIITscience, Revelstoke, Canada
Biol Sport. 2023;40(4):1057–1067
Online publish date: 2023/03/06
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To describe the occurrence of near-to-maximal sprinting speed (near-to-MSS) running bouts during training and hamstring injuries during the consecutive match of the same turnaround in elite football (soccer). Retrospective data from 36 team-seasons (16 elite teams performing in top European leagues) were analyzed (627 players, 96 non-contact time loss match hamstring injuries). We described 1) the occurrence of > 85%, > 90% or > 95% MSS exposures during training within each turnaround and match hamstring injuries and 2) whether the above-mentioned injury occurrences differed depending on the day(s) of the turnarounds (i.e., the period separating two consecutive matches, which is generally from 3 to 8 days) when these speed exposures occurred. The longer the length of the turnarounds and the lower the speed thresholds, the greater the number (and proportion) of near-to-MSS exposures (e.g., 18%, 45% and 72% of turnarounds with > 85% runs for 3, 5 and 7 turnarounds, respectively). For half of the turnarounds examined, there were no match hamstring injuries when players were exposed to running bouts > 95% MSS during training (e.g., injury rates: 0; CI: 0–15). Injuries still occurred during 85% of the turnarounds when there were no or lower relative speed exposures (i.e., > 85 or > 90%, injury rates: 2–5, CI: 0 6). Finally, irrespective of the turnaround length, there were no match hamstring injuries when > 95% MSS exposures occurred at D-2, while in contrast, injuries still happened when players were not exposed at all, or when these exposures occurred at D-3 and/or earlier within the turnaround. While the present observational study design precludes the examination of causal relationships, the programming of > 95% MSS exposures at D-2 may help mitigate match hamstring injury occurrences in elite football.
keywords:

Hamstring injuries, Planning, Programming, Football, Sprinting, Exposure

 
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