I agree with everyone who has posted so far. What is said in the quote is most important.No reason why you can't. I would recommend still training as though you were running and by that I mean using a plan to get up to the 13.1 miles. I would also make sure to check the minimum pace of the race you want to do. Some have faster pace requirements than others and you don't want to pay for a race and then realize you won't be able to finish it in time.
Good luck.
I am an avid runner (30+ miles per week) who has been dealt many set backs. Runners knee in both knees. I had an MRI on both. Went to PT and was introduced to Kinesio Tex Gold tape. This stuff is great.
jcieutat said:I am an avid runner (30+ miles per week) who has been dealt many set backs. Runners knee in both knees. I had an MRI on both. Went to PT and was introduced to Kinesio Tex Gold tape. This stuff is great. Make sure your knees are clean and apply it (youtube has many videos). I am now fighting plantar fasciitis in both feet. Podiatrist, shot, custom orthotic inserts, etc. You can surely walk/run but to walk the hole thing. I hate to see anyone walk a half marathon (race) but I guess it is better than those sitting on the couch eating chips! Good luck with your knee. If it keeps up I would definitely see an orthopedic.
Bilberry said:I don't run or walk as I used to, play tennis more often instead, but recall when running I developed a bad left knee. What helped me greatly was to weight lift, surprisingly. I think for me strengthening the knee muscles helps support it better. When I am to busy for a week to lift, I end up really feeling it in the left knee. It becomes sore and tender even when walking distance.
I eat a low carb diet and suspect that has helped my knees tenderness also as I've seen a few articles suggesting that high carbohydrate intake can be more inflammatory.
"How to reduce inflammation with food"
http://www.proteinpower.com/drmike/paleolithic-diet/how-to-reduce-inflammation-with-food/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+drmikenutritionblog+%28The+Blog+of+Michael+R.+Eades%2C+M.D.%29
And also a book that I enjoyed reading and learning from, that can be seen on Runners World's web sight, that might be helpful. Good luck!
http://www.paleodietforathletesbook.com/paleodietforathletesbook/index?keycode=222295&mktOfferId=RWD56988&product_code=122063&smartcode=1212840002466500001416268374320121109