Due to various conditions the XPatches in some cases fell off due to excessive sweating or were pulled off during the match. In some cases, these patches were never found. Various methods were employed to increase the adhesion of the XPatch over the duration of the match competition season with extra adhesive on the skin or an extra adhesive encapsulating the sensor onto the skin. Consequently the data was either incomplete for the match duration or were missing completely from the dataset. As a result the data reported was incomplete and the number of impacts would be more than have been reported.