15 minutes with new shoes

Disconcertingly, even somewhat depressingly, I only managed 15 minutes yesterday in my new trainers. I had no explosive energy in my body, for one. And also, the lower parts of my calves could not take any strain at all.

I was thinking of taking on a 2:30 hour run. I haven't run for that long for a few weeks, and each day that passes without attempting that kind of run chips away at both my confidence, and my fitness...

But what will I do? Attempt another longer run this evening. I can feel the tenderness of the backs of my calves... I wonder if the gym should be the thing, instead?