Losing and Training

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I'm not sure what your training volume is like, but assuming you're burning more calories than you're taking in you should lose weight.

I think the problem with setting up for 1/2 lb weight loss a week is that you have to really be dead accurate in your calculations. That comes out to an average of 250 calories deficit every day which doesn't leave you a whole lot of wiggle room if you miscalculate anything. I've read that we often underestimate the calories that we take in daily, and there really isn't a great way of calculating what you burn on a given day. I know for me that my HRM might tell me that I burn over 1k calories for an hour run (which I don't believe) while MFP tells me it is closer to 800 (which I still don't believe ).

I guess what I'm saying is that I certainly think it is doable, but it doesn't leave much room for error. I find it easier personally to shoot for a greater deficit each day. That way if I'm a little off, the chances of it still being a deficit vs. me being over my caloric intake is better. Good luck!

Hey! I'm in a similar boat...not in my set HM training schedule yet (race in October), but I run about 35 miles per week so I may be able to offer some input. From what I've read and experienced, NEVER try to lose weight while training (increasing mileage/pace). Having said that, if I eat back all of my exercise calories I will gain a slight amount of weight, or at least hold what I have. I blame this on the fact that I am not good at planning ahead and usually end up having to chow down at night to make up all my calories. (Sometimes MFP has me trying to eat 3200+ calories in one day).

So to stay at my goal weight, what I've done is I review all my exercise/nutrition reports (keep a log in your exercise notes about how you feel/fatigue/etc), and then pick a comfortable calorie number (for me it's 2400) that I can reasonably hit every day. I usually just try to shoot for this regardless of what MFP tells me. It has helped me a LOT to eat similar amounts of food whether I run 6x800m or 15k. The consistency of my food input has made it much easier on me and my weight and BF% stay pretty steady.

EDIT: I should mention that this works well for me when I am on a pretty strict training program. If you are more liberal with your training and significantly vary your mileage each week, then you will have to be more flexible with your daily caloric intake as well.

I've recently been wondering about this too...those last 10-15 is where I'm at and I'm first and foremost a runner but have begun triathlons. Sooooo much cardio, so little time! This round of training I'm going to be focusing more on a good weight training program, a little less on the cardio (not dropping it!), and much more protein. We'll see what happens

I've never lost a TON of weight training for a marathon. I usually fluctuate 5-7lbs. BUT I like to drink beer. I will tell you this... I don't lose a lot of weight, but I tone up considerably. My goal is to NOT have my thighs touch at the starting line!! LOL No one likes chaffing!

Over a year ago I tried losing weight while training for a half. That lasted a week, because I wasn't eating enough. So I just bagged the whole idea.
After the race I kept running as much, if not more actually, and upped my calories to only 1/2 lbs a week and easily lost the weight while still having plenty of energy.
This past spring I trained for a full, had been eating maintenance claories and still lost a few extra pounds. I don't use a HRM, I eat back most if not all my calories, and I have plenty of energy. If can be done, jsut go along using a small deficit.