It does occur to me that every wound, or injury does not affect all aspects of your ability. Some injuries say, breaking a leg/foot, wouldn't affect your Eye hand coordination.( ability to fire a ranged weapon)
penalty form a wound does not have to be one that reduces combat modifiers. A penalty from a wound could simply be you are limping along rather than running ..or you have to have your friends carry your kit rather than lugging it across the field.
You don't have to have everything that happens to the character have a direct impact on his ability to fire a weapon swing a punch. Secondary penalties, role playing obstacles, etc.. are just as good. Sometimes it's the non combat "fluff" that has to reflect the drawbacks of getting beat senseless, or shot in the foot.
As a Referee you can influence you players to play out injuries, wounds, and such. It is YOUR game...if they want to shrug off being down to 2 end, and 1 str, while having their full dex...that's a player issue, not a rules issue.