Well, here's a hint for you - "strength" doesn't mean anything. The kind of conditioning you get in training programs like P90X doesn't really help you with running. It is a different use pattern - different use of your muscles, different demands on your heart and lungs. Do not expect those other training programs to help you much with running,e xcept insofar as maybe they help you take off weight, in general.
If you'd like a program that helps you pick up running, I can heartily recommend "Couch to 5K" - that's what got me up to being able to jog along non-stop for a half hour. The expectations it sets are reasonable.
That's not entirely true. While running uses your muscles differently, strengthening them in other ways will still be helpful before you set out on a jog.
Stronger muscles in your legs and core will reduce the pressure on your joints which in turn will cause less friction of the muscle tissue against your shin.
Up until about a year ago I had a lot trouble with shin splints which became worse when I started playing rugby because of the stress on my lower legs. Here follows a list of things I did which finally alleviated the pain I felt:
- Stretch your legs, especially calves, an hour before you exercise and directly after your cooldown. Don't stretch right before a running session. Just move your joints in their full range of motion. It is good to stretch even on days you're not working out.
- Do not run on hard or uneven surfaces. Especially if you're starting with running, it is the absolute worst thing you can do for your shins. A track or an even grassy field are the best.
- Buy running shoes with good support.
- Ice your shins directly after a workout. The best is a big bucket of cold water with lots of ice in it. You dunk your shins in there 10 times for one minute intervals. Taken them out for one minute after each minute in the water. Otherwise ice packs work as well along the length of your shin or above your ankle and around the leg depending where the pain is. You can use a long sock to tie them around your legs.
- An aspirin after a run may reduce the inflammation.
- Build your running routine up gradually. Don't start with a 10k run or 8 x 100 meter sprints even if it feels good. Whether that means two rest days between runs or everyday smaller runs is up to you.
- Exercises such as squats, calve raises, crunches and v-ups all help to strengthen the muscles which absorb the shock of running.
Happy running.