The Influence of Coronal Strike Stance Angle on Kicking Mechanics in Adolescent Female Soccer Players.

The study included only 19 healthy adolescent female soccer players, so it may not apply to older female or male participants. Kicks were performed in a laboratory on a non-game-like surface, and only ball contact was analysed, so mechanics before and after contact were not captured. The sample was small relative to the number of variables tested, and the authors describe the findings as exploratory and in need of replication. A direct causal link between stance angle and ACL injury risk has not been established. Kicking accuracy was not measured because the ball position at the net could not be tracked.

Do not conclude that stance angle causes ACL injury or that changing stance angle prevents injury. The paper states a direct causal link has not been established, and the small exploratory sample means correlations may be false positives or false negatives.