A little speedwork at the track?

There is a thread about a sub 20 5-k in here that might be helpful.

Generally try to be more active, and make sure that you are toning muscle, not buliding it, if you are trying to make it help your running. If you are lugging around extra weight in muscles, that will slow you down as much as extra fat. With powerful, toned muscles you can push your body to further limits.

You can tone muscle by exercises that have high reps, and low weights. You can build muscle by doing the opposite.

If you are trying to get muscle for things other than running, then go ahead and build your muscles, for you can lift more weight, and look stronger with built muscles.

You might also consider running 4 or 5 days a week so you don't wear your body out. Know your limits. Good luck on your 5-k times!
Edited to add: Sit ups are great for running. The more you do, the less likely you are to barf after a race.  That is one of the many advantages of sit-ups.
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[http://This message has been edited by MileRunnerDD (edited Jul-06-2006).|http://This message has been edited by MileRunnerDD (edited Jul-06-2006).]

You're welcome 
Wow that's great! Keep running and you never know how low that 5-k can drop too...
Good luck in all your further races and 5-ks!

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To all that think there is no
such thing as a stupid
question-
You have never seen me in
math class.