I like running but regularity seems to be the biggest hurdle. Do you think one has to push oneself to improve running or that improvement part takes care of itself as one maintains regularity.]?
A little of both. If you maintain a certain number of miles per week, you will become stronger. If you actually work out, somewhere in among those weekly miles, you will become a lot stronger. "Work out" means some type of running workout. That could be track work, or that could mean simply running a bit faster than your normal, comfortable distance pace, such as a tempo workout or a threshold run.
