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Percent Error Bioelectrical Impedance

Previous SectionNext Section Acknowledgments We thank the volunteers who participated in the present study and the following persons for their contributions to volunteer recruitment and data input: Yang Zhang, Christiane Dawe, Nutr Clin Pract. 2004;19:433–446. They both showed a significant difference in fat percentage with the athletic being 7% to nearly 10% less than the standard male reading for both males. doi: 10.1111/j.1749-6632.1999.tb09456.x. [PubMed] [Cross Ref]Kyle UG, Bosaeus I, De Lorenzo AD, Deurenberg P, Elia M, Gomez JM, Heitmann BL, Kent-Smith L, Melchior JC, Pirlich M, Scharfetter H, Schols AM, Pichard C. have a peek at this web-site

Máttar, JA (1996). "Application of total body bioimpedance to the critically ill patient. Bioelectrical impedance analysis accurate? ATM participated in reviewing the articles and helped to draft the manuscripts.AcknowledgementsWe wish to thank Dr. This equipment is superior to BIA that works off of a single frequency and/or only goes through one section of the body.

Obesity Facts. 1 (6): 6. For Optimal Results in Skinfold Measuring, the following protocol must be followed: All technicians must participate at a workshop where they spend considerable time learning the exact sites and technique and It gives the results in form of Z = R + jX (Z = impedance, R = resistence, X = reattance), without put them into a predictive equation.

Researchers have looked at the accuracy of BIA for tracking body fat change over time.  In one study, the disagreement between BIA and the 4-compartment model ranged from -3.6% to 4.8% Privacy policy About Wikipedia Disclaimers Contact Wikipedia Developers Cookie statement Mobile view Customer Support 1-866-236-8417 • Help • Get Discounts & DealsFree Gift with Orders Over $99 United States Store Training Definitely, some types of BIA are much better than others; unfortunately there is very little research comparing the type of multifrequency BIA you use to 4-compartment models. doi: 10.1079/BJN19930067. [PubMed] [Cross Ref]Barbosa-Silva MC, Barros AJ.

Cortisol supplements now? - 3 Fat Chicks on a Diet Weight Loss Community Ideal Protein Diet says: November 16, 2012 at 7:55 pm Peach O'Brien says: November 20, 2012 at 10:19 doi:  10.1186/1475-2891-7-26PMCID: PMC2543039Is bioelectrical impedance accurate for use in large epidemiological studies?Mahshid Dehghan1,2 and Anwar T Merchant31Population Health Research Institute, McMaster University, Hamilton, ON, Canada2Department of Medicine, McMaster University, Hamilton, ON, This hypothesis is supported by several studies, for example, whole-body impedance of Nigerians was significantly greater than that of matched Caucasian individuals, but was not different among different tribes of Nigeria When you exercise, blood travels to your skin to cool you down.

I have found your article as I have turned a patient (very active until four years back with high muscle mass) right now and started using our SECA device (which is Not that it's all about winning but I'd like to think my work has paid off in more ways than one. Effects of meal and its electrolytes on bioelectrical impedance. The result is based on the idea that thickness of fat under the skin reflects total body fat.

side note: he DID mean 2300 kcals. "Calories" with a capital "c" means kcals, so... 2300 kcals = 2300 Calories = 23,000 calories. http://muscleevo.net/body-fat-scales/ However, it will still have many of the other limitations that BIA has. doi: 10.1079/BJN19910073. [PubMed] [Cross Ref]Deurenberg P, Deurenberg-Yap M. Asia Pac J Clin Nutr. 2002;11:1–7.

Because men and women store fat differently around the abdomen and thigh region, the results can be less accurate as a measure of total body fat percentage. Check This Out Bioelectrical impedance scales range from the simple (a normal scale with electrodes under each foot) to the complex (a scale that has handholds with additional electrodes). P.S. Advantages Painless.

Multivariate regression analysis was performed to explore the role of physical variables on the adiposity-dependent bias of BIA when compared with DXA. By keeping your body fat within a reasonable level, you'll be healthier, feel better, increase your life expectancy, reduce your risk of certain conditions and of course, look slimmer as well. Int J Obes Relat Metab Disord. 1998;22:243–249. http://newmexicosupercomputer.com/percent-error/percent-error-of-mean.html The correlation between %BF predicted by BIA and that measured by DXA was estimated by the use of Pearson's correlation.

Body composition and physical fitness of female volleyball and basketball players of the Japan inter-high school championship teams. The correlation coefficients between BIA and DXA for men and women were 0.78 and 0.85, respectively. Am J Clin Nutr. 1988;47:789–792. [PubMed]Swartz AM, Swartz AM, Jeremy EM, King GA, Thompson DL.

J Appl Physiol. 1996;81:838–845. [PubMed]Gualdi-Russo E, Toselli S.

The ratio of fat/lean mass, especially in the lower part of the body increases [50,51], which may affect the estimated impedance as the current passes through the legs. Curr Opin Clin Nutr Metab Care. 2003;6:387–393. More recently, segmental BIA has been developed to overcome inconsistencies between resistance (R) and body mass of the trunk. Bioimpedance isn't all that accurate a measure of body fat, as you've just discovered.

This insufficiency may result from congestive heart failure, cirrhosis, nephrotic syndrome, hypoalbuminemia, and lympheodema [39]. Compared to other testing methods (hydrostatic weighing, circumference, skin-caliper, DEXA, MRI) this is the LEAST accurate field test. For some individuals, increased levels of abdominal fat have been tied to higher risks of heart disease and cancer compared to fat distributed across the rest of the body. http://newmexicosupercomputer.com/percent-error/percent-error-example.html Are there any factors I need to know about?

Muscularity and the density of the fat-free mass in athletes. International Journal of Body Composition Research, 7, 15-20 5. Jogging or cycling at moderate intensities for 90–120 min decreases measured impedance by 50 to 70 Ω, which results in nearly a 12 kg overestimation of FFM [35]. Evaluation of a foot-to-foot bioelectrical impedance analyser in highly active, moderately active and less active young men.

Z węglowodanami czy bez? | FilozofiaCiała says: December 19, 2015 at 9:21 am SHAIMA says: January 4, 2016 at 8:27 pm I am adoctor , Endocrinologist, I have used BIA tO In contrast, Kyle et al., (2001) indicated that Japanese men and women had 10–12% higher body fat than Swiss men and women [55]. When these equations have been used to predict body composition in different populations, the results have been inconsistent. J Am Geriatr Soc. 1999;47:1403–1408. [PubMed]Chen Z, Bassford T, Green SB, Cauley JA, Jackson RD, LaCroix AZ, Leboff M, Stefanick ML, Margolis KL.

I have a lean figure which I like to maintain. 2 weeks ago I took my first ever BIA (Bioelectrical Impedance Analysis) test. Peach Peach O'Brien Reply kw says: January 8, 2013 at 10:35 am Hey, It is great to read about see a different perspective of things but, some references of what your Ann N Y Acad Sci. 2000;904:317–326. [PubMed]Womersley J. Journal of Applied Physiology, 90, 1523-1531 4.

Measurement of fat mass using DXA: a validation study in elderly adults. Thanks for the answers!