This seems to be a different thing than just practicing different activities related to the same sport. These are two functionally similar activities which use slightly different muscle patterns to accomplish, so that the trainee is directly applying their knowledge of the first action to the second, but can’t just do the precise same motion.<p>&gt; <i>“If you make the altered task too different, people do not get the gain we observed during reconsolidation. The modification between sessions needs to be subtle”</i><p>A better baseball analogy might be practicing catching line drives then practicing catching popups then practicing catching one-bounce throws then practicing catching a lobbed egg.<p>Or maybe practicing batting and then practicing golfing and then practicing kendo swings.