Well that didn’t go very well at all. Just attempted to go for a 20min run, but knew within the first 200m that my knees were having none of it. I think I’m going to have to go back to basics on the run. Forget about 4 runs per week and just do two, spaced well apart, then build up gradually from there, maybe even adopting a run/walk protocol at first. Also, no more running on paths/roads – only grass or something soft – as that just seems to be asking for trouble. The question now becomes where do I find a grassy area that is within walking distance, and doesn’t involve running around in small circles? I think I’ll also have to up the swimming & cycling distances to make up for the lack of running.