fitness products,glucose monitors,baby scales,medical scales,polar heart rate monitors,omron blood pressure monitors,body fat scales,cholesterol tests,peak flow meters,medela breast pumps,pedometers,fat calipers,body composition analyzers Baby strollers , car seats , bouncers, toys , free shipping, low prices,ceap toys, cheap strollers
Search by Keyword:
Products by Manufacturer:
Products by Type:

Comparison of Leg-to-Leg Bioimpedance (BIA) System with Dual Energy X-ray Absorptiometry (DXA) in an Elderly Cohort


Practical Implications:

  • These results suggest that the Tanita leg-to-leg system reliably predicts body fat in elderly subjects
  • The mean % fat estimates by Tanita BIA and DXA were not significantly different.  Linear regression demonstrated a high correlation between Tanita BIA and DXA fat estimates (r=0.90, p<0.001)



Prior studies support the use of BIA in assessing healthy adult body composition. As there are recognized age-related body composition and physiological changes that alter tissue conduction, concern arises for BIA validity in the elderly.  The present study evaluated the validity of a leg-to-leg contact electrode BIA system (TBF-305, Tanita Corp., Tokyo, Japan) in an elderly cohort by comparing BIA fat estimates with those by DXA.


There were 74 subjects with mean age 64 yrs. and BMI (26.6±4.8 kg/m²) who successfully completed protocol.


The mean % fat estimates by BIA (32.8±9.5) and DXA (33.7±9.9) were not significantly different (p=0.58). Linear regression demonstrated a high correlation between BIA and DXA fat estimates (r=0.9, p<0.001, SEE=4.4). The slope and intercept of the regression line were not significantly different from 1 and zero, respectively. These results suggest that the leg-to-leg BIA system reliably predicts body fat in elderly subjects.

*Reprinted from Tanita Corporation of America, Inc.

Source: F. Rubiano,m C. Nuñez, D. Gallagher & S.B. Heymsfield
Obesity Research Center, St. Luke's/Roosevelt Hospital, Columbia University, NY, NY
First presented at Experimental Biology 1999 "Poster"


Back to the Tanita Research Page

For Phone Orders, call toll-free 888-337-4684 (Monday - Friday 9 am - 6 pm E.S.T)
All other inquiries, please phone 718-339-6212
FAX 718-336-5570

Body Fat Measurement | Pro Body Fat Monitors | Heart Rate Monitors | Bariatric Scales | Blood Pressure Monitors | Breast Pumps | Digital Thermometers | Nebulizers & Peak Flow Meters | Fitness Products | Baby Video Monitors | Baby Strollers | Bathroom Scales | Smoking Cessation | Weight Loss | Diabetes Testing / Glucose MetersInfant/Baby Care | Medical/Physician's Scales | Medical Strength Testing Equipment | Cooking/Diet Scales | Portable Personal Massagers | Jogging Strollers | Bicycle Trailers | Stopwatches & Scoreboards| GreatGift Ideas | POWERBreather Inspiratory Muscle Strengthener

Home | My Account | Products | Fitness Tips | Contact Us | View Shopping Cart | HealthCheck Systems | Heart rate monitors | Body fat scales and body fat monitors | Products for baby and new parents | Blood pressure monitors | Products for fitness and health | Professional products | Cholesterol Monitors / Glucose Testing Devices / Blood testing devices | Gifts

Copyright 1997-2017 HealthCheck Systems, All rights reserved

Home MyAccount Contact Us Shopping Cart