Originally Posted by Tyler Durden:
Are there any scientific studies about the accuracy of the Body Bugg? I've been curious.

Yes. It's within 5% accuracy for exercise activities and withing 10% accuracy for "daily living" activities as compared to an EXTREMELY accurate oxygen tent metabolism doo-dad.

I got a GWF recently and I'm really enjoying it as a fun tool. I haven't had it long enough to know how "mathematical" my body is yet!

You can read about it an I believe they have the NEJ of Medicine articles at www dot gowearfit dot com. If not there, the BodyBugg or SenseWear pages might have it. They are all three the exact same device just with different interfaces and marketed differently.

Interesting. I'm such a data freak I'd love to have one but I can't rationalize the expense when I don't reeaaaaaallly need it!

Originally Posted by L144S:
I have a BB too, I say keep at it and Hang in there, I have had 4 weeks of plenty of deficit (the BB/gofit are accurate) and I have not lost. I find this time of year with the weather changing, my whole body will swell from the heat and reatain fluid. you may have to tweek your program and if it is meal delivery you could request a lower carb option for a few weeks and see how that works for you.

I agree! Keep at it! I'm a GoWearFit user and my device has been spot on regarding calorie expenditure and calculating the deficit, however, I give myself a 300 calorie margin of error and with that being said, every time I have a 3500 deficit, I lose a pound. It really has been spot on for me. I hit a stall for about a week but chalked that up to pre TOM and then lost the pounds I should have lost the following week. Just be patient which I know is difficult, but if you are POP, then you are losing fat even if the scale doesn't translate it. :)

Originally Posted by Tyler Durden:
Interesting. I'm such a data freak I'd love to have one but I can't rationalize the expense when I don't reeaaaaaallly need it!

I made it my birthday present to myself. I'm a scientist and I LOOOOOOOOOOVE data. The more information I have, the more spreadsheets I can make, and that makes me very very happy.

I think I need more hobbies :)

Your ratios may or may not be the problem. I lost all my weight with a minimum of 50% from carbs and not 100g+ protein. It seems to make a difference for some people, but is in no way some nutritional rule that applies to everyone. I definitely think it's worth experimenting with to see if it helps you.

Originally Posted by Rebound:
Yes. It's within 5% accuracy for exercise activities and withing 10% accuracy for "daily living" activities as compared to an EXTREMELY accurate oxygen tent metabolism doo-dad.

Re: the OP, then, if her total calorie expenditure is 2300, say 500 exercise and 1800 daily living, that could be off on the order of 25 + 180 = 205 calories. Which is well above amounts paid attention to when talking about food calories on these forums.

Originally Posted by Rebound:
I made it my birthday present to myself. I'm a scientist and I LOOOOOOOOOOVE data. The more information I have, the more spreadsheets I can make, and that makes me very very happy.

I think I need more hobbies :)

I'm thinking of doing the same thing. Birthday's in September, so it gives me some time to save... I'm just like you, I freakin' love spreadsheets. They make me happy and feel organized! :p

Originally Posted by JulieJ08:
Re: the OP, then, if her total calorie expenditure is 2300, say 500 exercise and 1800 daily living, that could be off on the order of 25 + 180 = 205 calories. Which is well above amounts paid attention to when talking about food calories on these forums.

Assuming that the % uncertainty was always in the same direction, you would be correct. So lets assume that the OP is burning 2300-205=2095 calories a day. And then lets throw in the assumption that she's underestimating her calories by 10% we get 1650*1.1=1815 calories consumed. She's looking at a daily deficit of 2095-1815=280 calories, or 1960 calories per week. Less than a pound a week. But still a deficit. And that's worst case scenario.

I kind of forgot what point I was making...

To the OP, 2 pounds isn't a lot. And you've made a lot of changes in 10 days. I'd give everything 2 weeks to settle down. And then if you haven't seen any loss it's time to reevaluate. But I wouldn't worry about it yet. I love my GWF (same thing as the Bugg) but I don't expect my body to respond EXACTLY as the numbers say. It would be nice if it did, but it doesn't. If I continue to see a reasonable calorie deficit, though, I would expect to see my overall trend be that of weight LOSS. But a 2 pound variation in ten days isn't something you should stress out about just yet :)

And Julie, I'm not sure if you're pro or anti Bugg, but being off by 205 calories is still way more accurate than most other calorie expenditure "calculators" that just use body mass and some user-defined intensity. And it's still more accurate that just using body mass and heart rate.

The power of the Bugg, too, is that it tells you when you are becoming too efficient at your exercise. Lets say you run 5 miles a day every day in 10 minute miles. For a few weeks this burns 500 calories. Then your body becomes more efficient. Now you're burning only 425 calories. That is the sort of information that the Bugg will give you to allow you to change your exercise to something that makes your body work harder. So you see that now you're only burning 425 calories where you used to burn 500. You add intervals, or hill work, and now you're burning 525 calories. Yippie! This is stuff that the Bugg is particularly good at.

wow... I need to get a bugg then...
It is pretty sweet!!!
How much can it cost??

Originally Posted by Rebound:

And Julie, I'm not sure if you're pro or anti Bugg, but being off by 205 calories is still way more accurate than most other calorie expenditure "calculators" that just use body mass and some user-defined intensity. And it's still more accurate that just using body mass and heart rate.

Um, neither. It was simply information.

Originally Posted by JulieJ08:
Um, neither. It was simply information.

No problem! I only asked because there are some really anti-Bugg people out there -- which I don't understand. It's just a gadget :) How can anyone ahte a gadget?

belezura, I have the GoWear Fit (Bugg is just more fun to type!) There is actually a sale right now at gowearfit dot com. There is a 20% off code for father's day: FITDAD. I don't know how long it lasts.

I just bought mine without that discount and it was $249.90 for the armband and display and a 12 month commitment to the monthly service at $6.95 a month. You don't need the display (it just gives you real-time information throughout the day) but you do need the monthly service.

The BodyBugg, GoWear Fit, and SenseWear are all the same product but are marketed to different groups and have different interfaces. The science and the algorithms behind them are all the same. There's a BB/GWF/SW thread in the general diets section with LOTS of information.

:) I surely wouldn't mind playing with one ;)

How does it work? Like your scenario, Rebound, where a person is burning 500 calories during a run and then becomes a more efficient calorie burner, how does the gadget know you're now only burning 425, if you're doing the exact same exercise for the exact same time? I guess I'm looking at this as a fancy pedometer. Is it more than that?

Originally Posted by Pas de Chaton:
How does it work? Like your scenario, Rebound, where a person is burning 500 calories during a run and then becomes a more efficient calorie burner, how does the gadget know you're now only burning 425, if you're doing the exact same exercise for the exact same time? I guess I'm looking at this as a fancy pedometer. Is it more than that?

It's MUCH more than that. Because I can't link, this is what it says on the GWF website:

Originally Posted by :
Your GoWear fit has multiple sensors. Those innovative sensors take 5 different “views” of your life:

Motion

The armband contains an accelerometer, a device that measures motion. (Your car air bag has an accelerometer in it that lets it know when you've been in an accident.) We use it to measure HOW you move from multiple axis and perspectives, allowing us to better understand your activity.

Steps

We count your steps, using the accelerometer to measure the distinct patterns created by walking and/or running.

Galvanic Skin Response

When you sweat, your skin becomes more electrically conductive. This measurement help us see how active you are.

Skin Temperature

There's an electronic thermometer inside your armband that helps us know how hot you are.

Heat Flux

When you move, your muscles produce heat. We measure the heat that's flowing from your body into the environment.


Once we've gotten these “readings” we can determine what kind of exercise you're getting, and how difficult it is for you. That's important since your body burns calories differently than anyone else's.

Our clinically proven algorithms crunch your numbers – pairing up sensor data with calorie information and presenting it to you via the GoWear fit online activity manager… so you know how far you are toward reaching your goals!

It can tell how much energy (and as we all know, heat = energy) you are expending to do different things. As you get more efficient, you use less energy and therefore create less heat and burn fewer calories. The sensors can "read" all this from your body. It's really remarkable. It's also cool to really see how many calories I burn when I sleep, and how many when I'm packing lunches or making dinner or something.

I just eat my WW points, exercise, and let the rest take care of itself...I really WISH I could get more into the data and its analysis, but I just don't have the time to log the info up. I know how far towards reaching my goal I am when I see my weight loss trends over several weeks.

To each his own! I know lots of Bugg users! I'd love to know what the usage rates are at 6 months and 12 months, or if all the data and inputting gets pushed by the wayside (along with the majority of gym memberships!)...

NOTE: not a bugg hater here, just a different POV...

Kira