Surprisingly, the data gathered indicated that the players with H:Q ratio imbalances in the pre-season had an injury incidence that was 4 times higher than those who did not have imbalances (16.5% vs 4.1%). Furthermore, undertaking compensatory training in order to correct existing imbalances, which were subsequently assessed via post-test, were found to reduce the injury risk. There was no significant difference in the frequency of injuries among this group compared to those who did not have imbalances during the pre-season. Lastly, the players with a functional Hecc:Qcon ratio higher than 1.4 did not suffer from any hamstring injuries. In other words, 1.40 could be proposed as the Hecc:Qcon ratio cut-off point, after which the risk of injury would be reduced. Based on the latest scientific research, various cut-off points have been suggested. One of the most widespread cut-off points still being used (erroneously) is that which establishes an H:Q ratio above 0.60 as the point after which the injury risk is lowered. However, this refers to the traditional Hcon:Qcon ratio which, as we have seen, is limited when it comes to detecting muscle imbalances.
Injury risk is one of the main limiting factors, if not the most limiting factor when it comes to performance. As a result, the role of injury prevention for increasing athletic performance is especially important. In this sense, assessing potential muscular imbalances using the H:Q ratio in sports involving frequent hamstring use, such as football, can play a role in a team’s success. Likewise, when an imbalance is present, correction through compensatory training is equally important.
The Barça Innovation Hub team
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