I've been 'jogging' off and on for the last two weeks or so with a group. We probably go a mile or less, and always end up walking as much as we jog, so it's not been intense at all, and arguably not even worth while. However, last night I went running with a group my roommate runs with, and they do 2.93 miles. Previously the fastest I'd ever run a single mile was 10:15 or so, and that was pretty much going all out for me, jogging and walking alternately. Well, last night, we did about 2.93 miles, and I did it with a friend in just over 28 minutes or so. I was really shocked that I could do that, and looking back I honestly could have pushed myself harder. Not being familiar with pacing at all I'm not sure how much harder, but I could have definitely kept running after it was over.
As far as my lungs, heart, and muscles are concerned, I was a-ok, no problema. However, as soon as I stopped running I noticed my shins were pretty doggone sore. Not terrible, but definitely sore, a slight throbbing, and on fire is definitely an exaggeration, but there was some warmth.
I don't want to jump to any conclusions or proclaim I have shin splints. I read about them last night and the symptoms seem one and the same, but they got a lot better pretty fast last night and basically haven't bothered me at all today. So I'm assuming at this point it probably isn't shin splints, but just maybe a muscle that isn't used to that kind of activity.
I want to start running with this group every night, but after last night I'm wondering if 2.93 miles at that kind of pace is too large a jump from what I was doing previously. Do you think I should cut back and go a shorter distance? Or try the whole loop a few more nights as long as my shins recover rapidly and don't start bothering me any worse immediately afterwards?
Sorry for rambling so much, I'm sure I could have said that much more concisely. But I'd really appreciate any input from those who are active and may have some experience with this.