Hi - I had my immobiliser taken off today (after 2.5 weeks) so know how you are feeling and thought I would let you know you are not alone!! My knee won't bend far or even lift my leg without pain and I certainly have no muscle strength to walk without my brace yet!! The physio saw me for about 5 minutes, showed me how to exercise my quad muscles (by contracting my knee when straight) and told me to try gentle bending movements (but not to push it too far too soon). My husband thinks that as soon as the brace is off that's it - back to normal and driving the same day!! But we know it's not quite as simple as that - my leg looks really bandy and has no muscle tone/strength now!! Not sure what you did to be immobilised - probably something a bit worse than me though if it was like that for 5 weeks (I had a bad dislocation) but I really hope your knee heals soon - lets keep up the quad exercises!! Claire