This nominal rest week has been a little harder on my knees that I expected. Perhaps unwisely, on Tuesday I did a fairly fast run which was inevitably stressful. This was followed by circuits where I managed some squats and small lunges and collectively that was quite a load on the knees and quads.
Therefore today I limited myself to a loop of the woods and included some of the running drills. I didn't have any twinges during that 7km and pain hasn't developed during the evening which are good signs, but I can tell that they are 'tired' at the very least.