I joined a running club programme and have been running a few months now. I'm really slow though. Slower than all the other new people, some of who are bigger than me and some older than me. I'm fairly athletic in any other sport I do but have never been able to get on board with distance running.
I get heavy legs fairly often. Is this likely a fueling issue, or my shoes or my technique.
I know I'm not deficient in anything as recently had blood tests in good range and I feel pretty energetic otherwise.
Could it be my shoes? I just can't afford to spend £100ish on new shoes if I end up not continuing. But if it was likely to make a difference then I would. How do you choose and fit new shoes if you have to shop online?