Doubling

[Aaron]

I wanted to get some opinions on the best way to incorporate running twice a day.  I'm trying to figure out how to squeeze in some more mileage but want to approach it somewhat carefully.  I probably have time to do one double a week but my question is this.  Is it better to do two easy paced runs or could I do a tough interval workout in the a.m. and come back in the evening for an easy run. 

Aaron

[Ryan]

You could do either but, if you're doing this for a first time, I'd suggest starting with easy runs. Adding another run is creating shorter recoveries, which will add some stress. No reason to do some already stressful workouts when adding a new stress your body isn't used to.

[Zeke]

Is it better to do two easy paced runs or could I do a tough interval workout in the a.m. and come back in the evening for an easy run. 

Aaron

I highly doubt you could tell the difference between your two choices.  Personally I've done both - except I'll reverse your second choice; easy AM run, hard PM run.  Sometimes that easy AM run will make my legs feel better for the evening workout.

[GTF]

http://www.hillrunner.com/forums/index.php/topic,2713.0.html

[Double]

I used to run easy on Tuesday and Thursday mornings and do intervals on Tuesday / tempo on Thursday in the evening fairly successfully.  I generally made those 15 mile days so it adds up.