My 27-month old Sadie gets injured all the time and only she is to blame.  She has two speeds, reckless and stop.  She gets exercised a minimum of three times a day and is free to run/walk, etc., with me around our property (it's not as if she spends long periods of inactivity and then goes all out).  But, with this exercise comes injuries.  She missed almost half of the recent 6-week grouse season (she was doing poorly anyway, even though we she showed so much promise in pre-season training.  Another story for another day).  First, it was her shoulder and a severe limp for days.  Then she must have ran into a sharp stick while hunting and had swelling the size of a half egg on her back near her haunches.  That swelled so much, if finally split and had to be treated at the doctors. Again, out of hunting action for nearly ten days.  Then, two toe nails in one week torn out or broken and then back to a limp and sore shoulder.   While we enjoy her energy most of the time (her need for exercise fills our need for exercise as we are out there with her), sometimes she is just her own worst enemy.  Not looking for advice so much as just need to vent.  I worked with her so hard prior to hunting and she showed so much promise at home, but in the field it was a different story.  Then the injuries kept us from working on those things in the field.  Even when she sleeps, she dreams and her legs move as if she is running while on her side, sound asleep.  Go figure. 

Poor Sadie! Hopefully she outgrows it soon. We have friends whose GSP seems to be at the vet every other week too!

I don't know about the leg thing. When my dogs are super tired, they will twitch like crazy ...

Yes the accidents GSPs will get into.  The reason I will not have another large glass door.  My Maple has gone through one, she has cut herself with what I would call a drive by on the fence (running full speed), among many other incidents.  She has numerous scars and thankfully on one when she almost cut her toe off we were able to save it. The vets office just a few blocks away was still open and took her right away.

Hang in there.  It does improve with age.  Not that they slow down a whole lot, but it seems the injuries are much further apart these days.

Thankfully my younger GSP now over 2 years old, has not been accident prone.  I should knock on wood now!

Roz.