Your Smart Scale Probably Isn’t Accurate Enough to Be Useful - Lifehacker
Sep 24, 2021 1 min, 27 secs

The body fat, muscle mass, bone mass, body water, and other measures (which we can summarize as “body composition”) come from something called bioimpedance analysis, or BIA.

The biggest is just the number of guesses the formula has to make about your body to get from “this is a 5'6" human with a foot-to-foot resistance value of X” to “your body is 32% fat,” much less estimating the amount of bone or dry muscle tissue.

Some people say they like to watch their body fat (or muscle mass) change over time, and that it goes in the direction they’d expect.

My Withings smart scale has never showed any meaningful change in these numbers for me, even when I know my body composition has changed.

If you put your height into the app, and assuming the scale is accurate enough at determining your weight, measurements of your BMI should be correct, since BMI is just the relationship between your height and weight.

Measures of muscle, fat, bone, and body water are usually just tweaks on the body fat formula calculated by BIA; for example, lean body mass is your total weight minus body fat.

Some scales measure heart rate, which you can check yourself; just count the beats of your pulse while watching a clock, and see if it matches the number from your scale.

Look carefully at the other numbers your scale claims to report, and you’ll probably see that they are calculated from data you put in your profile in the app, often in conjunction with your weight or other scale data.

But I wouldn’t use the numbers from a smart scale (except for weight) to make any decisions about what to eat or how to train


1. Haiti: US missionaries reportedly kidnapped in Port-au-Prince
Oct 17, 2021 # breaking 42 secs
2. Marvel’s Kevin Feige Talks ‘Eternals’ Ambition and That ‘Venom’ Surprise - Hollywood Reporter
Oct 19, 2021 # entertainment 1 min, 16 secs
3. The House has voted to hold Steve Bannon in contempt. Here's what happens next. - CBS News
Oct 22, 2021 # politics 1 min, 13 secs
4. NASA defends decision to retain JWST name - SpaceNews
Oct 21, 2021 # science 53 secs
5. Polish PM accuses EU of blackmail as row over rule of law escalates - BBC News
Oct 19, 2021 # politics 1 min, 40 secs
6. An asteroid zipped past Earth closer than the moon's orbit yesterday - Space.com
Oct 18, 2021 # science 55 secs
7. Teen Who Posted Craigslist Ad Trying to Sell Black Classmate as Slave Gets 2 Years' Probation - Newsweek
Oct 21, 2021 # politics 42 secs
8. Russian Film Crew Returns to Earth Safely After 12 Days of Shooting on the ISS - Gizmodo
Oct 18, 2021 # science 47 secs
9. Colin Powell had mixed legacy among some African Americans
Oct 19, 2021 # breaking 1 min, 43 secs
10. Dorothy Steel, Actress in ‘Black Panther,’ Dies at 95 - Hollywood Reporter
Oct 16, 2021 # entertainment 41 secs
11. Larimer County to implement indoor mask mandate - FOX 31 Denver
Oct 16, 2021 # health 8 secs
12. Winners and losers from NFL Week 6, plus Cowboys make history against Bill Belichick and Bills-Titans picks - CBS Sports
Oct 18, 2021 # politics 1 min, 31 secs
13. Christina Haack Says She Suffers from 'Extreme Stomach Pain' and Recently Had an Endoscopy - Yahoo Entertainment
Oct 21, 2021 # health 37 secs
14. Revealed: more than 120000 US sites feared to handle harmful PFAS 'forever' chemicals - The Guardian
Oct 17, 2021 # politics 1 min, 53 secs
15. House Ethics Committee Details Accusations Against 4 Lawmakers - The New York Times
Oct 22, 2021 # politics 1 min, 49 secs
16. iPhone 13 specs comparison: iPhone 13 vs. Mini vs. Pro vs. Pro Max - CNET
Oct 17, 2021 # technology 1 min, 19 secs

SUBSCRIBE

Get monthly updates and free resources.

CONNECT WITH US

© Copyright 2021 365NEWSX - All RIGHTS RESERVED