How far off is the half-marathon? You don’t have to run super long distances to train for one of those. You could do shorter, higher intensity cardio two days a week and only one slightly longer run once a week. The shorter, high intensity sessions aren’t going to eat up muscle…and one longer run a week isn’t going to do it either.
Plus, let’s bear in mind, you don’t train for a marathon (or a half marathon) by running one.
My experience with combining running and weight lifting has been good. I run three miles, three times a week, and I lift heavy three times a week. I’ve been at 220 lbs for two years on that regimen, and don’t feel that I have “sacrificed” any muscle. Just eat well, and I think you’ll be covered.
PS: Although it has nothing to do with muscle, don’t forget to add some type of joint protection (i.e; glucosamine) to your supplementation. Your joints will thank you.[/quote]
In preparation for OCS, I’ve been running about 20-30 miles a week. The furthest we’ll have to run at OCS is 4-5 miles. The USMC physical fitness test is 3 miles. So why am I running so much? Just like everything else, the more you do it, the more simple it becomes. I’ve gone from a 21 minute 3-mile time to a low 18 minute time.
Just like Pavel’s Grease the Groove method; the more you do something, the more efficient you’ll become at performing the task…as long as you don’t burn yourself out.
Also…think about supplementing with Carbolin 19.