Question for the Runners???
Link to my running journal
http://www.disboards.com/showthread.php?t=1303681
4 full's - 14 halves - 2 goofy's and one Mt. Washington!
5'6" - 302/155-158
Check my success story on my surgeon's website: my story
Check my blog: LosingForLife.com
Ran NYC Marathon 11/4/07 5:27:06
"Don't be afraid your life will end; be afraid it will never begin."
--Grace Hansen
Weight lost: 140 pounds
You already gotten some great advice from some experienced runners. Cardiovascular endurance isn't an overnight thing and you will eventually get to a pace that works for you. One of the best things you can do is invest in a heart rate monitor and monitor your heart rate as you exercise. Exercise at around 70% - 80% of your max heart rate and you will see significant weekly increases in speed and endurance.
The best advice I can give you is to take it slow. It's perfectly fine to walk and run during a workout. It's actually adviseable to walk to warm-up, run a bit, walk, run a bit, walk to cooldown. You establish patterns for later on in your training cycle where your body will get used to interval training. Interval training, as some of the other runners will probably agree with me, is vital to attempt longer distances and times not to mention the speed increases.
Best of luck!
Chad.