Runner's Forum: I'm not tired anymore....

Seems to me that it depends on what your goals are.  If you are happy running 3-7 miles x 3-4 times per week and you're happy with your weight and overall level of fitness AND you don't really want to run faster/farther or compete in races, then why change things?  If, however, you're planning on entering some races and you want to be more competitive than you currently are, then maybe your exercise plan should be adjusted to a more focused training plan that includes some days of high effort and some days of lower effort with a mix of various types of running (hills, fartleks, speedwork, long slow runs, pace runs etc.).

 But it sounds to me like you may already have a good thing going...

I think Rogerbum hit the nail on the head. 

If you enjoy what you"re doing keep doing it.  If you want more of a challange find a plan to get you to your next goal and stick with it.

it most likely your not running fast enough. if you run under your max distance and your not at a fast pace then you wont be very tired. the best thing to do is if you feel fine near the end A: Run more. B: Sprint for a few minuites at the end. i do a combination of both and i get a perfect workout.

Borntocry,

try to vary your workouts. Maybe your body has become too comfortable with your pace. Throw some interval training or hill training in once a week.

That's exactly what I did, too, LVrunner;  I started running half-marathons and trying to whittle down my time but mostly concentrating on a fun, non-speed-related goal - doing them in as many different countries as possible (six so far)!  But that was when I had just recently moved to France and didn't know too many people here, so I was running alone.  Now that I'm running with other people and have a more active social life I can't spend as many hours on my workouts so I would like to make them more efficient.  But I think that as junkie_99 said, my body has become too used to doing the same thing all the time.  I think I will take that advice and try to get to the track once a week to time myself running laps and really work on my speed.  Also as soon as the weather starts getting colder the parks will get less crowded and I will be able to practice running hills and hopefully improve my conditioning.

Some folks have thrown out some good ideas.  In terms of purely increasing speed -- throw in some track workouts.  By that I don't just mean running on a track to time your running workouts -- do actually workouts, like 400s, 800s, 1000s, 1200s, etc.  At the time it does not seem to make much a difference, but like the rest of running you'll be surprised as just how much speed work does help.  During your speed work, remember to focus on your form.  The goal of speed work is to train your body to run at a faster pace without exerting additional efforts.  Over time, it truly does work and you should notice minutes coming off your 1/2 marathon pace.

 Good Luck!