Last year I went into hospital for an operation on both my calves, I had a procedure called Bilateral Gastrocnemius Slides. I had suffered for many years with tears to my Soleus muscles each time I did any speed training (or even a PFT!), I could plod for hours at a steady pace, even do marathons with a PB of 3.39. But every time I did anything explosive, I would injure my calves. After learning to walk again in the early part of this year, and six months of rehab and physio, I am still not able to run without injury, even steady running causes niggles etc. I have done all manner of strength training to build up my muscles again, I stretch regularly (before, during and after exercise), I can cycle pain free and obviously swim pain free, but desperately want to run again. The MO has downgraded me to P3 and I am determined to get upgraded again soon, but I have got to pass a PFT first, any suggestions?