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mecompco 11-10-2010 10:17 AM

Basal Metabolism "Lifestyle" observation
Found something interesting (new to me, at least) after I've started logging my "activities" daily. The base lifestyle metabolism is listed as 24 hours, so if I'm interpreting this correctly, the "calories burned" is based upon, in my case, a setting of "seated work w/some movement". Now, if I put my 8 hours of sleep in as an activity, I "lose" a whole lot of calories burned.

One would think the software would, by default, account for less than 24 hours of "work" per day. Perhaps it does and I'm just reading it incorrectly?



jptfenwick 11-10-2010 05:40 PM

Interesting discovery. I just added sleep to my activity list and it dropped my dailey calories burned too. I agree. you think they would of programmed that into the database.

Lizzycritter 11-10-2010 10:46 PM

As far as I know, the 'base' lifestyle is for a full 24 hours and you have to log your sleep to make it accurate compared to other weight loss calculators. For best results you have to log all your activities that are more OR less active than your base. I was doing the activity log for a while but currently I am not, it was just too much to keep up with. Makes logical sense though that logging sleep would drop your calorie burn, when my husband was diagnosed with sleep apnea they figured he was waking up 300+ times a night. So basically no real sleep. Starting on the CPAP machine with no other lifestyle changes caused him to gain 30 lbs in about 3 months.

Mark999 11-11-2010 06:11 AM

I noticed this as well. According to this article (link below) on the subject, using a combined method of BMR and counting individual activities is discouraged. It should be one or the other. To do this here at FD you would need to enter a custom BMR of zero and enter all activities, including sleep. Or, you could simply enter all activites, making sure they add up to 24 hours so that it will essentially remove the BMR by subtracting from it.

Calculating BMR and RMR |

misfit36 11-11-2010 06:00 PM

Hi everyone. Thanks for your posts. This makes a lot more sense to me now. According to my BMR, I have been having huge calorie deficits but really not losing much weight. I wish there was a way to turn off the BMR/base calories for the weekends because I am not working then.

I think (part of) the trick is to make sure your calories are under the base for your body each day. Then when you add some exercise to it, you should still have a good calorie deficit and stay on track to weight loss. Now, easier said than done.

Happy Remembrance Day (Canada) and Veterans Day (U.S.) everyone. Remember why North America is one of the most free and wealthiest places on earth. We didn't get this way because we are so smart or good looking.

kkotelman 11-29-2010 03:51 PM

On the weekends just add watching TV or some other passive activity, there are quite a few

joshcramer1976 11-29-2010 06:28 PM

Personally, I'd always rather under estimate my output, and over estimate my input.. So I put in sleep and try to be a little heavy on the foods that I eat.

efduncan 11-29-2010 11:22 PM

I have seen this same topic in the past somewhere in these fourms and if I remember correct, a FitDay person chimed in and said that a normal amount of sleep in included in the lifestyle totals.

mecompco 11-30-2010 08:33 AM

Originally Posted by efduncan (Post 26865)
I have seen this same topic in the past somewhere in these fourms and if I remember correct, a FitDay person chimed in and said that a normal amount of sleep in included in the lifestyle totals.

Thank you. It would be nice to know for sure (not that it's actually "that" important in the whole scheme of things, I guess). If sleep is included in a lifestyle choice, why have it as an extra activity?

rpmcduff 11-30-2010 03:11 PM

I also remember a post like efduncan commented on but many here (including myself) have found the BMR numbers to be overstated. I took the approach of creating a custom BMR to match my calorie deficit with my actual weight loss. That was before I heard about logging sleep. In retrospect adding sleep may have been easier and possibly more accurate as my hours of sleep tends to vary.

The bottom line is whatever works for you. Track your weight loss and calorie deficit and see if they match (3500 calorie deficit = apprx. 1lb. of weight loss). If not, set a custom BMR or start logging sleep.

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