• Most or all of your runs at a pace that feels comfortable, controlled, and conversational.
• Exercise that is not running, if you feel that the above isn’t enough for you: Cycling and other cross-training can work your lungs and muscles without putting too much str...

It's usually not the shoes you're wearing, or your posture, but forcing yourself to accomplish too much from the very start that's causing you physical pain.

If you do end up hurting, it helps to know what kind of pain is usually fine to run through vs what needs to be looked at.