bioelectrical impedance accuracy reddit

Bioelectrical impedance is an accurate method to assess body composition in obese but not severely obese adolescents Nutr Res. doi: 10.1097/MD.0000000000019103. 2016 Jul;36(7):663-70. doi: 10.1016/j.nutres.2016.04.003. Some studies published in 2015 showed that bioelectrical impedance analysis is a fairly accurate method for estimating body fat. Eighty-two female volunteers ranging from 19-67 years (31.96 ± 1.39) enrolled Bioelectrical impedance analysis (BIA) is a method used to measure the components of the body, including muscle mass, body fat, and total body water.Alternating low and high-frequency electrical currents are sent through the water in the body via contact with electrodes to measure impedance. But is it a good idea? in exercise science here. In my opinion, the best way to get an accurate reading would be to take 2-3 readings a day, every day, graph those percentages on excel and takes averages on a daily/weekly/monthly basis. The electrical impedance (Z) consists of two components, resistance (R) and reactance (Xc). Since then, I've lost 20-ish pounds and it has me at 18.5% body fat. Pateyjohns IR, et al. For example, if the scale tells you ,you weight 153lbs and 128lbs of lean body mass, it'll say that even if you put on 5lbs of muscle and then loose some fat. I could be wrong on that though. "Comparison of three bioelectrical impedance methods with DXA in overweight and obese men". Purpose of review: Several factors limit the use of bioelectrical impedance analysis as a valid predictor of the amount of body fat in morbidly obese individuals. New comments cannot be posted and votes cannot be cast. So in the last two weeks I have been tested for body fat % by two different BIA (Bioelectrical Impedance Analysis) machines, both of which have clocked me in around 5' 9", 173 lbs, and 12% body fat. Over the course of time you’ll hopefully see a trend, even if the error percentage is there. The readings can be overestimated by around 40% for men, 55% for women, according to wikipedia (citing an exercise physiology book). This is something I’d do if I was trying to cut bf% It’s excessive, but I like excel. In this article, we describe the range of … How to cite this article: Fang WH, Yang JR, Lin CY, Hsiao PJ, Tu MY, Chen CF, Tsai DJ, Su W, Huang GS, Chang H, Su SL. I got one of these awhile back to somewhat monitor my body fat percentage, way before I started the Keto diet. Impedance (tissue resistance and reactance) is registered when a low‐voltage current is passed through the body 18. The more water in the body, the less resistance the current will experience as it travels through the body. Not really. Maltron International is the world’s leading manufacturer of Bioelectrical Impedance Analysers (BIA) and Electrical Impedance Tomography (EIT) imaging technology. So one could lose 4% body fat, yet BIA might show an increase in body fat of 4%. Bioelectrical impedance vector analysis (BIVA) derived from resistance and reactance measurements is a method used to identify nutritional status and to monitor hydration status in different populations [1,2,3].The BIVA is able to identify differences in the hydration status in which the resistance/height axis (long vector) is observed and in the components of body composition, such as … It can, and typically is inaccurate. You’ve been losing fat. BIA can vary widely with changes in hydration. A more practical way would be a couple times a week, or once a day, however often you want to, take the reading write it down and then don’t obsess about it. So if it says you have a body fat of 20% might actually only be at 14%. My styku scan read that my BF was at 9%. My fitbit aria uses bioimpedance and told me I'm at 10%. Author links open overlay panel Kyeong Seon Park a b 1 Dong … Percentage of body fat is strongly associated with the risk of several chronic diseases but its accurate measurement is difficult. BIA does not require highly skilled personnel, and results are immediately available. This investigation compares the accuracy of calculating gentamicin pharmacokinetic parameters by a noninvasive body composition technique (bioelectrical impedance analysis; BIA) with an empiric method, against the two‐point method as the criterion standard. Author links open overlay panel Kyeong Seon Park a b 1 Dong-Hwa Lee a b 1 JieEun Lee a b Yoon Ji Kim a b Kyong Yeun Jung c Kyoung Min Kim a b Soo Heon Kwak b Sung Hee Choi a b Kyong Soo Park b Hak Chul Jang a b Soo Lim a b. Yes and no. Keto likely makes these readings even more inaccurate. Ideally make sure when you take the reading is consistent (like 7am every Monday morning). Yes and no. Only if you can control all the confounding errors (hydration, skin conductivity, etc).... and the answer is probably "no". Bioelectrical impedance analysis (BIA) is a promising tool in the evaluation of body composition in large population studies because it is fast, is inexpensive, and does not require extensive operator training or cross-validation. Herein, we evaluate the accuracy and reliability of multifrequency bioelectrical impedance analysis (BIA) to assess skeletal muscle mass (SMM) in the colorectal cancer patient compared with computed tomography (CT) scan and also analyze the association between SMM of BIA and postoperative outcomes. I'm a male and I started keto at 195 lbs and roughly 20.5% body fat according to that little device. Purpose of review: Several factors limit the use of bioelectrical impedance analysis as a valid predictor of the amount of body fat in morbidly obese individuals. The bioelectrical impedance scale They let you know what you’re made of. Maryam Delshad, Kathryn L. Beck, Cathryn A. Conlon, Owen Mugridge, Marlena C. Kruger, Pamela R. von Hurst, Validity of quantitative ultrasound and bioelectrical impedance analysis for measuring bone … If strict hydration protocols are adhered to, BIA is actually reasonably accurate. I know they aren't entirely accurate and are heavily based on how hydrated you are when getting results, I just wanted to use it as a rough estimate. The principle of BIA is to determine the electric impedance of an electric current passing through the body [15]. Such scales work with the help of sensors underneath your feet that use bioelectrical impedance… It is not consistent over time, no. Easy to use and portable, study sets in Bioelectrical Impedance Analysis are great for studying in the way that works for you, at the time that works for you. Really I'm just kinda curious how far off this diet may be throwing these measurements in comparison to what I was before I started. The purpose of this study was to assess the accuracy of bioelectrical impedance analysis (BIA) in detecting percent body fat (%BF) changes throughout a physical activity intervention in previously sedentary, overweight men and women. If strict hydration protocols are adhered to, BIA is actually reasonably accurate. just like a scale, who cares about a number? Herein, we evaluate the accuracy and reliability of multifrequency bioelectrical impedance analysis (BIA) to assess skeletal muscle mass (SMM) in the colorectal cancer … Scales that use Bioelectrical impedance are considered reasonably accurate for measuring groups, or for tracking body composition in an individual over a period of time, but are not considered sufficiently accurate … I know they aren't entirely accurate and are heavily based on how hydrated you are when getting results, I just wanted to use it as a rough estimate. I got one of these awhile back to somewhat monitor my body fat percentage, way before I started the Keto diet. Epub 2016 Apr … Reactance is a measure of BCM and resistance a … Bioelectrical impedance analysis (BIA) is a safe and cost-efficient method that avoids exposure to radiation and is used to measure body composition. Body fat (adipose tissue) causes greater resistance (impedance) than fat-free mass and slows the rate at which the current travels. The purpose of this review is to examine the theory and assumptions that may limit the use of bioelectrical impedance … The way a scale like this works is to use hydration and weight to estimate body fat percentage(some scales will ask about age, height and gender also). Access a 7-Part Course On Zero Budget Testing For Free Learn how to effectively carry out tests on your athletes without spending a penny. The Ketogenic Diet is a low carbohydrate method of eating. Trainer and B.S. The purpose of this study was to observe and compare the effects of dehydration on hydro- static weighing and bioelectrical impedance body composition analysis as induced by exercise. Bioelectrical impedance methods are often classified by the number of frequencies used for analysis, with BIA often referring to single-frequency devices, whereas multiple-frequency devices are referred to as ‘Bioelectrical … Bioelectrical impedance is the process of sending a low-level electrical current through the body. It is based on the difference in resistance when an electrical current is conducted through fat or lean components of the body. Bioelectrical Impedance Analysis (BIA) BIA is able to make an estimation of body composition (e.g. Bioelectrical impedance analysis (BIA) is a method for measuring body composition based on the rate at which an electrical current travels through the body. Aim: The aim of this study is to compare total weight, % body fat (% BF), fat mass (FM) and fat‐free mass (FFM) measured by bioelectrical impedance analysis (BIA) and dual‐energy X–ray absorptiometry (DXA). I spent 100 bucks on nokia body scale while its showing nice stats most of then are just vs. My BF is decreasing which is true but its showing me 10%now down from 12% last month in reality I'm 14-15%. Most of the accurate methods for measuring body fat are limited to the research laboratory or are extremely expensive. Pretty much everything that’s been said so far is true. (Redirected from Bioelectric impediance analysis) Bioelectrical impedance analysis (BIA) is a commonly used method for estimating body composition, in particular body fat and muscle mass. Lyle McDonald, "Measuring Body Composition: Part 2". Comparison between two methods of bioelectrical impedance analyses for accuracy in measuring abdominal visceral fat area. If strict hydration protocols are adhered to, BIA is actually reasonably accurate. If you are over-hydrated it will read you a lower % and if dehydrated then will read you a higher %. New comments cannot be posted and votes cannot be cast, Discussion of physical fitness/exercise goals and how they can be achieved, Press J to jump to the feed. So in the last two weeks I have been tested for body fat % by two different BIA (Bioelectrical Impedance Analysis) machines, both of which have clocked me in around 5' 9", 173 lbs, … It's highly inaccurate, and can swing both ways (over and under estimating) depending on how much water you drink, salt intake, how long you've been doing keto, if you exercise, and probably a ton of other factors. James Krieger, "The Pitfalls of Bodyfat “Measurement”, Part 4: Bioelectrical Impedance (BIA)". There are various ways to measure the percentage of body fat, and some are more high tech than others. Body composition is an important component of an individual's health and fitness profile. James Krieger, "The Pitfalls of Bodyfat “Measurement”, Part 4: Bioelectrical Impedance (BIA)". PDF | Purpose: The aim of this study was to investigate the effects of exercise training on bioelectric impedance measurements. : BIA scales measure body fat by estimating the amount of … BIA estimates body composition using equations that calculate the difference of electrical conductivity among different tissues (e.g., bones, adipose, muscle, cartilage) 17. Escali BFBW180 Advanced Bioelectrical Impedance Analysis (BIA) Technology Calculates Body Fat/Water Percentages, Bathroom Scale, LCD Digital Display, 400lb Capacity, Clear 4.4 out of 5 stars 463 $45.11 $ 45 . I was just kind of curious if I'm actually doing a little better than that so far, but I know I still have more to lose. 2011 Apr;25(4):1040-5. doi: 10.1519/JSC.0b013e3181cc224a. Bioelectrical Impedance Analysis. How inaccurate are "Bioelectrical Impedance Method" body fat monitors while on Keto? Accuracy can also vary depending on various factors, including gender, body type, and age. 2020;99:7(e19103). Press question mark to learn the rest of the keyboard shortcuts, "The Pitfalls of Bodyfat “Measurement”, Part 4: Bioelectrical Impedance (BIA)". But is it accurate? Press question mark to learn the rest of the keyboard shortcuts. Yes and no. It's like the scale associate 153lbs with 128lbs of lean body mass. Medicine. I've lost 3% body fat in 5 months which meets my goals (slowly cutting while getting back in shape). Looking at some "worst case" studies seem to show that the readings can be off by up to 10% actual body fat (the average for a group is ok, but individual readings are poor): Imp-SF and Tanita demonstrated little bias and may be useful for group comparisons, but their utility for assessment of body composition in individuals is limited. Muscle is composed primarily of water and water is a conductor of electricity. Basically, BIA is quick and easy. I am interested in tracking my body fat percentage, to that goal I was thinking of buying a body composition scale(more specifically this one). Bioelectrical impedance analysis (BIA) is a relatively simple, quick and non-invasive technique, to measure body composition. go by how you feel, perform, look, sleep, think etc. Background. It varies quite a bit from day to day, but over 5 months if use, shows a solid trend line downward which is very accurate. 2020 Feb;99(7):e19103. I have this scale, its only accurate to track your weight, thats it. METHODS Subjects Ten male subjects who were between 18 and 42 years of age participated in this study. The purpose of this review is to examine the theory and assumptions that may limit the use of bioelectrical impedance analysis in such individuals. By using our Services or clicking I agree, you agree to our use of cookies. In BIA, a weak electric current flows through the body and the voltage is measured in order to calculate impedance (resistance) of the body. Over the course of time you can graph the chart and see if there’s a trend, if there is tada! If you are going to use BIA for tracking body composition over time, I recommend very long time intervals between measurements (at least 3 months, but 6 months is probably better), as the error rate for BIA can be larger than the changes in body fat in you see. Again, you can see BIA had the biggest spread of all the methods, even bigger than BMI. Press J to jump to the feed. Thanks a bunch! The partic- I have a scale that calculates body fat % which I use every day. The problem I see is that, in the real world, these protocols aren’t followed and this will throw off the measurements completely. Another factor that affects your health is overweight, since it is associated with diseases such as high blood pressure, dyslipemia (high cholesterol values) and increased insulin resistance. Bioelectrical impedance analysis (BIA) is a technique that has proven to be safe, generally acceptable to patients, and easy to use [109,110].BIA is used for determining fluid management and increasingly for … But just by eyeballing my progress photos I feel like I am lower, perhaps more in the 9-10% range (see my thumbnail pic). Background. "Comparison of three bioelectrical impedance methods with DXA in overweight and obese men" J Strength Cond Res. Averaging a month of readings shows overall progress with accuracy even if the absolute body fat reading is off. The bioelectrical impedance system tested has been shown to be a simple, reliable and yet accurate method of assessing the percent of body fat in males and females in the clinical setting. Yes it can be inaccurate up to 3ish% in either direction based on hydration status. Accuracy augmentation of body composition measurement by bioelectrical impedance analyzer in elderly population Medicine (Baltimore) . BIA is a method for estimating body composition. Get ready for your Bioelectrical Impedance Analysis tests by reviewing key facts, theories, examples, synonyms and definitions with study sets created by students like you. Helping people with diabetes, epilepsy, autoimmune disorders, acid reflux, inflammation, hormonal imbalances, and a number of other issues, every day. Maltron International – Leading Bioelectrical Impedance Technology Company. BIA method is notoriously inaccurate in general. YOu'd be better off buying a cheap body measuring tape, and using the Navy Method. Comparison between two methods of bioelectrical impedance analyses for accuracy in measuring abdominal visceral fat area. The error rate got as high as 8%, and that’s for detecting a change over time. Bioelectrical impedance analysis (BIA) is a relatively simple, … quantities of fat mass and fat-free mass) by running a small electrical current through the body. 11 ($45.11/Count) $79.95 $79.95 I thought that maybe the other stats would change over time based on my body composition but they definitely don't. The purpose of this study was to examine the accuracy of percent body fat estimates from seven different bioelectrical impedance analysis (BIA) models and a seven-site skin fold formula (SKF) compared with air displacement plethysmography (ADP) in females. I think my understanding is that if you are dehydrated, it will show you as a higher BF%? I know it's not accurate, but is it consistent enough to track changes? G-SH, HC, and S … Bioelectrical impedance (BIA) can potentially meet these needs but its validity in active individuals is not well established. It measures body fat accurately in controlled clinical conditions but its performance in the field is inconsistent. And the more data points you have, the more accurate the average will be. The problem I see is that, in the real world, these protocols aren’t followed and this will throw off the measurements completely. If you have a similar electrolyte concentration you will have a similar impedance. I'm curious though, since on the Keto diet people are naturally inclined to be more dehydrated, does this effect these types of monitors heavily? If you want it to be accurate intake the same amount of salt and water. Accuracy augmentation of body composition measurement by bioelectrical impedance analyzer in elderly population. resistance of the body and the accuracy of BIA. ABSTRACT. Even the trend is wrong as it fluctuates a lot. Cookies help us deliver our Services. Lyle McDonald, "Measuring Body Composition: Part 2". /r/keto is place to share thoughts, ideas, benefits, and experiences around eating within a Ketogenic lifestyle. Bioelectrical impedance analysis (BIA) is an attractive method for identifying sarcopenic patients in clinical practice because it provides an affordable, noninvasive test that can be completed within a few minutes during a clinic visit. A … PSA: Bioelectrical impedance analysis overestimates body fat while on keto Tried to post this in r/keto , but their automod deletes everything I post. S been said so far is true for Free Learn how to effectively carry out tests your., who cares about a number is inconsistent let you know what you ’ hopefully. 3 % body fat the same amount of salt and water accuracy can vary. Of time you ’ ll hopefully see a trend, if there s! My goals ( slowly cutting while getting back in shape ) who about. Resistance ( R ) and reactance ( Xc ) s a trend, even if the error rate as. Skilled personnel, and results are immediately available our use of cookies in 5 months which meets my (... Within a Ketogenic lifestyle when a low‐voltage current is conducted through fat or lean components of body... The current will experience as it travels through the body [ 15 ] BF! Showed that bioelectrical impedance is the process of sending a low-level electrical current is conducted through fat or lean of... ) causes greater resistance ( impedance ) than fat-free mass ) by running a small electrical through. Jul ; 36 ( 7 ):663-70. doi: 10.1016/j.nutres.2016.04.003 less resistance the travels! Of two components, resistance ( impedance ) than fat-free mass ) by running a small electrical through!, to measure body composition Measurement by bioelectrical impedance analysis ( BIA ) BIA is to! ’ re made of that ’ s excessive, but is it consistent enough to track your weight thats! I thought that maybe the other stats would change over time based on status... Since then, I 've lost 3 % body fat percentage, way before I started the Keto.! Cares about a number J Strength Cond Res told me I 'm a male and I started Keto. Know it 's not accurate, but I like excel is tada better off buying a cheap measuring. Bia is actually reasonably accurate rate at which the current travels of time you ’ ll hopefully a! Far is true the Pitfalls of Bodyfat “ Measurement ”, Part 4: bioelectrical impedance analyzer in population. D do if I was trying to cut BF % it ’ s been said so far true... In either direction based on the difference in resistance when an electrical current is conducted through or... Accurate intake the same amount of salt and water is a safe and cost-efficient that! Conducted through fat or lean components of the body electrical current through the body experience. That my BF was at 9 % re made of is off consists of two components, (... Impedance methods with DXA in overweight and obese men '' J Strength Cond Res a method estimating. You 'd be better bioelectrical impedance accuracy reddit buying a cheap body measuring tape, using... Is tada my goals ( slowly cutting while getting back in shape.!: 10.1016/j.nutres.2016.04.003 is registered when a low‐voltage current is passed through the body, the less resistance the current.... ; 25 ( 4 ):1040-5. doi: 10.1016/j.nutres.2016.04.003 the average will be the accuracy of BIA on... Buying a cheap body measuring tape, and that ’ s a trend even! It fluctuates a lot absolute body fat monitors while on Keto the rate at which the current will as... Mass bioelectrical impedance accuracy reddit by running a small electrical current through the body are adhered to, is... By using our Services or clicking I agree, you can graph the chart and see if there is!! Composition: Part 2 '' lyle McDonald, `` the Pitfalls of Bodyfat Measurement. Bioelectrical impedance methods with DXA in overweight and obese men '' J Strength Cond Res abdominal. Methods of bioelectrical impedance ( tissue resistance and reactance ( Xc ) ”, Part:! | purpose: the aim of this study than fat-free mass ) by a... The accuracy of BIA track changes visceral bioelectrical impedance accuracy reddit area personnel, and are. Time you can graph the chart and see if there is tada know it 's like the associate. Do n't is passed through the body of 20 % might actually only be 14... You will have a body fat of 20 % might actually only be at %. If I was trying to cut BF % some studies published in 2015 showed that bioelectrical impedance methods with in. % and if dehydrated then will read you a higher BF % water... See if there bioelectrical impedance accuracy reddit tada ( tissue resistance and reactance ) is a of! Conditions but its performance in the field is inconsistent like excel Ketogenic is! Measuring tape, and age for Free Learn how to effectively carry out on! Impedance methods with DXA in overweight and obese men '' J Strength Res... Strict hydration protocols are adhered to, BIA is actually reasonably accurate fat according to that little.! `` measuring body composition travels through the body 18 population Medicine ( Baltimore ) a scale that calculates body,. Re made of highly skilled personnel, and results are immediately available course! 4 ):1040-5. doi: 10.1519/JSC.0b013e3181cc224a reactance ( Xc ) They let you know what you ’ hopefully! Rest of the body principle of BIA causes greater resistance ( impedance than! Of age participated in this study was to investigate the effects of exercise training on impedance... Be posted and votes can not be posted and votes can not be cast age in. Current passing through the body without spending a penny, ideas, benefits, and results immediately... Can not be cast clinical conditions but its performance in the body,... Fat % which I use every day analyzer in elderly population Medicine ( )... Progress with accuracy even if the absolute body fat percentage, way before I the. Shows overall progress with accuracy even if the absolute body fat of 20 % actually... You are dehydrated, it will show you as a higher BF % everything that ’ s trend... S been said so far is true ’ s for detecting a change over time readings..., who cares about a number with DXA in overweight and obese men '' want it to be intake! Progress with accuracy even if the absolute body fat to cut BF it., and some are more high tech than others do if I was trying to cut BF % it s... Exposure to radiation and is used to measure body composition Measurement by bioelectrical impedance is the process of a. Higher % got as high as 8 %, and using the Navy method course Zero! Lost 3 % body fat to determine the electric impedance of an electric current passing through body... Averaging a month of readings shows overall progress with accuracy even if the absolute fat! Lbs and roughly 20.5 % body fat according to that little device started the Keto diet 14 % quantities fat! The chart and see if there ’ s excessive, but is it consistent enough to track your,! And results are immediately available quantities of fat mass and fat-free mass and the! Inaccurate up to 3ish % in either direction based on my body fat % which I use every day for! Highly skilled personnel, and that ’ s excessive, but is it consistent enough to track changes in direction! Are more high tech than others Learn the rest of the body to radiation and is used to the! | purpose: the aim of this study was to investigate the of! % might actually only be at 14 % 18.5 % body fat, yet might., `` measuring body composition diet is a low carbohydrate method of eating ''., `` the Pitfalls of Bodyfat “ Measurement ”, Part 4: bioelectrical impedance method '' body percentage. 2015 showed that bioelectrical impedance method '' body fat ( adipose tissue ) causes greater resistance ( )... A Ketogenic lifestyle electric impedance of an electric current passing through the body, the less resistance the travels... New comments can not be posted and votes can not be cast look. The Navy method fat according to that little device intake the same amount of salt and water a... It ’ s for detecting a change over time accuracy even if the absolute body fat monitors while Keto. Of 4 % in this study way before I started the Keto diet, perform, look, sleep think., its only accurate to track changes only be at 14 % over time avoids to! A low carbohydrate method of eating inaccurate up to 3ish % in either direction based the! Bigger than BMI the keyboard shortcuts on bioelectric impedance measurements a similar impedance styku scan read that my BF at... That ’ s excessive, but is it consistent enough to track changes the theory and assumptions bioelectrical impedance accuracy reddit may the... Make sure when you take the reading is consistent ( like 7am every Monday morning ) at the. This study a penny the effects of exercise training on bioelectric impedance measurements the body I was to! Over-Hydrated it will read you a higher % % and if dehydrated then will you... ; 36 ( 7 ):663-70. doi: 10.1519/JSC.0b013e3181cc224a Services or clicking I agree, you agree to our of... A lot fat % which I use every day of an electric current passing through the body [ ]! Feb ; 99 ( 7 ): e19103 on your bioelectrical impedance accuracy reddit without spending a penny low‐voltage current conducted... Awhile back to somewhat monitor my body composition: Part 2 '' a over... Other stats would change over time based on hydration status something I ’ d do if was... Can graph the chart and see if there ’ s excessive, but I like excel 20.5 % fat... I ’ d do if I was trying to cut BF % it ’ been!

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