MC-180MA Multi-Frequency Body Composition Analyzer MC-180MA Introduction -Table of Contents MC-180MA Main Feature Advanced Technology, Improvement Advanced Technology Multi-Frequency, Reactance, Dilution method. Measurement Result Fat %, TBW, ECW, ICW, Visceral Fat, etc. MC-180MA Main Feature The Advanced Technology MC-180MA provide accurate and reliable information by Multi-Frequency BIA Reactance / Resistance data are output each frequency New measurement items are added to existing models MC-180MA Main Feature Improvements New additional measurement items by Multi-Frequency BIA Intra / Extra cellular water Visceral fat, Muscle Balance etc. High accuracy weighing (type approval class III) minimum value 50g (0-200kg), 100g (200-270kg) High capacity weighing max 270kg Easy to operate and by color touch panel. 320 x 240dots, 5.7inch, Color TFT Display MC-180MA Main Feature Convenient interface High speed measurement less than 20 sec. (not include profile input time) High speed start up less than 10 sec. External printer connectable (option) (Only EPSON Stylus D88) speedy print onto the exclusive form USB RS-232C PC connectable by USB selectable communication port, USB / RS-232C Printer port MC-180MA Advanced technology Multi-Frequency(1) flow outside of cell Cell ICW transmit cell membrane ECW low-frequency current high-frequency current Low frequency current is unable to pass the cell membrane and it flows outside the cell. High frequency current is able to penetrate the cell membrane and can also flow within the cell. MC-180MA Advanced technology Multi-Frequency(2) ICW Resistance f=0 f= ECW Resistance Cell membrane capacitor MC-180MA Advanced technology Reactance / Resistance(1) 朝 Morning 夕方 横になって寝ていたため胴体部に水分が集まっている 細 胞 外 Evening ECW: Increase by daily fluctuation ICW: No change The primary cause of daily fluctuation is changes in impedance value, because the ECW (i.e. intercellular water, blood, lymph fluid, etc.) moves between arms, legs and trunk. The change of impedance value significantly affects the estimation of body composition. MC-180MA Advanced technology Reactance (X) Reactance / Resistance(2) Impedance (Z) Phase angle (θ) Resistance (R) MC-180MA not only uses impedance values in the conventional way, but also adopts reactance values that can be acquired by breaking down impedance values under a regression formula to reduce daily fluctuation. MC-180MA Advanced technology Dilution method(1) Body Water Marker TBW : D2O ECW : NaBr Total body water (TBW) and Extra cellular water (ECW) are measured by correlations of dilution method and BIA. A known concentration of marker is administered to the body, and the total water content of the body is calculated from the degree of dilution. MC-180MA Advanced technology Dilution method(2) 1 little 40% (0.4little) ? little 1% ?+1 little Alcohol amount: 0.4 little Water : ? 0.4 / (? + 1 ) = 1% ? = 0.4 / 0.01 – 1 ? = 40 – 1 ? = 39 little Comparison with the currents BC-418 BC-420 MC-180 Weight Measurement 0.1kg/200kg 0.1kg/270kg 0.05kg/1-200kg 0.1kg/200-270kg Number of electrodes 8polar 4polar 8polar Measurement Frequency 50kHz 50kHz 5, 50, 250, 500kHz Measurement Impedance Impedance Impedance Resistance Reactance Measurement Range 150~1200Ω 150~1200Ω 75~1500Ω Membrane switch Membrane switch Touch panel Display device 3 Rows, 5 Digits LCD 3 Rows, 5 Digits LCD 320 × 240 dots TFT color LCD Data Interface RS-232C RS-232C USB, RS-232C internal thermal printer internal thermal printer external A4 printer (option) Model Name Input device Printer Comparison of results Model Name BC-418 BC-420 MC-180 FAT % DXA(1) DXA(2) DXA(3) TBW, TBW % from FFM Dilution method Dilution method Dilution method ICW , ECW MRI MRI breath gas analysis breath gas analysis breath gas analysis DXA DXA DXA DXA DXA Visceral Fat rating BMR Muscle mass Bone mass DXA DXA Fat % DXA DXA Muscle mass DXA DXA Segmental read out Fat % Score Average Muscle Score Average MC-180MA Technical Notes Body Fat In MC-180, Body Fat % and Fat Mass are measured by correlation of DXA and BIA. MC-180 evaluates segmental Fat data. These data is used to check a figure and body balance. MC-180MA Technical Notes -reference- Validation data Fat % 60 y = 0.9646x + 1.0186 R = 0.93 50 DXA % FAT 40 30 20 10 0 0 10 20 30 40 M C - 1 8 0 M A % FAT 50 60 MC-180MA Technical Notes Fat Free Mass (FFM) Reactance (X) + Impedance (Z) Phase angle (θ) Resistance (R) TANITA has been measuring FFM by using the DXA always. In MC-180, TANITA achieved higher accuracy by adopting advanced technology. Multi-Frequency BIA and Reactance measurement. MC-180MA Technical Notes -reference- Validation data FFM 100 y = x + 0.09 R = 0.98 DXA FFM 80 60 40 20 0 0 20 40 60 M C - 1 8 0 M A FFM 80 100 MC-180MA Technical Notes Total Body Water, Intra / Extra Water TBW (45-65%) ECW (30-50%) fat, protein, mineral etc. ICW TBW ECW and ICW including blood and lymph ECW consists interstitial fluid, blood plasma, lymph etc. Edema is the state that interstitial fluid has increased. ICW the fluid that exists in the cell ICW tends to increase to the muscular person because muscle tissue contains a lot of water. MC-180MA Technical Notes -reference- General transition of body water This is one example. It is neither a normal value nor a standard value. ECW % ECW ICW % % Factor that influences body water In elderly , ICW decreases because the muscle mass reduce. In female, TBW and ICW are little than male, because the amount of muscle is comparatively few. Adipose tissue don't contain water, therefore, in obese person, ICW is a little. TBW % adult –male- ECW ICW % % 50 30 25 20 TBW % 55 ICW % child ECW % infant 35 40 25 TBW % 35 20 30 ICW - % newborn baby ICW % ICW % 35 60 65 TBW - % 65 ECW - % 30 TBW % 75 ECW % TBW % Body weight 40 50 30 adult -female- 30 elderly adult TBW ECW ICW newborn 75 40 35 infant 65 30 35 child 60-65 20-30 35-40 male 55 25 30 female 50 20 30 MC-180MA Technical Notes -reference- Validation data TBW 80 y = 0.9999x + 0.0026 R = 0.9715 Dilu t io n T BW 60 40 20 0 0 20 40 M C - 1 8 0 M A T BW 60 80 MC-180MA Technical Notes Visceral Fat Rating Visceral fat is accumulated when becoming aged. TANITA has been researching the method of measuring the visceral BMI 25 BMI 25 fat, and established the method (Age 27 Male) (Age 61 Male) to estimate it from BIA. In TANITA body composition analyzer, visceral fat rating is evaluated by correlations of the Visceral Adipose Tissue area in MRI and BIA. Rating from 1 - 12 Indicates you have a healthy level of visceral fat. Continue monitoring your rating to ensure that it stays within the healthy range. Rating from 13 – Indicates you have an excess level of visceral fat. Consider making changes in your lifestyle possibly through diet. MC-180MA Technical Notes -reference- Validation data Visceral Fat 250 y = 0 .9 9 x - 0 .1 0 R = 0 .8 5 2 MRI VFA (cm ) 200 150 100 50 0 0 50 100 150 MC- 1 8 0 MA VFA ( c m 2 ) 200 250 MC-180MA Technical Notes Basal Metabolic Rate (BMR) The BMR is more determined by the Fat Free Mass (FFM) than by the body weight. In MC-180, the BMR is estimated by the correlation of Breath Gas analysis and FFM. Of course, FFM is measured by the BIA method. MC-180MA Technical Notes -reference- Validation data BMR R = 0.900 MC-180MA Technical Notes Muscle Mass In MC-180, the muscle mass is measured by the method using the correlation of DXA and BIA. MC-180 evaluates segmental muscle mass. These are convenient to check the effect of training and rehabilitation. MC-180MA Technical Notes -reference- Validation data Muscle Mass DXA L ST (Muscle mass) 120 y = 0.9769x + 1.2902 R = 0.97 100 80 60 40 20 20 40 60 80 BIA Muscle mass 100 120 MC-180MA Technical Notes Estimated Bone Mass Female : Average of estimated bone mass (kg) Weight Less than 50kg 50kg-75kg 75kg and up 1.95kg 2.40kg 2.95kg Male : Average of estimated bone mass (kg) Weight Less than 65kg 65kg-95kg 95kg and up 2.66kg 3.29kg 3.69kg This feature indicates the amount of bone (bone mineral level, calcium or other minerals) in the body. •Persons described below may obtain varying readings and should take the values given for reference purposes only. - Elderly persons - Women during or after menopause - People receiving hormone therapy •“Estimated bone mass” is a value estimated statistically based on its correlation with the fat-free amount (tissues other than the fat). "Estimated bone mass" does not give a direct judgment on the hardness or strength of the bones or the risks of bone fractures. If you have concerns over your bones, you are recommended to consult a specialist physician. MC-180MA Technical Notes -reference- Validation Data Bone Mass 6.0 y = 1.0066x + 0.0164 R2 = 0.78 R = 0.88 SEE = 0.30 p < 0.0001 DXA Bone mass 5.0 4.0 3.0 2.0 MAL E FEMAL E 1.0 0.0 0.0 1.0 2.0 3.0 4.0 BIA Bone mass 5.0 6.0 MC-180MA Technical Notes -reference- Validation data ECW 80 80 y = 0 .9 9 9 7 x + 0 .0 0 1 7 R 2 = 0 .3 9 1 1 60 Di l u t i o n EC W Di l u t i o n EC W 60 40 40 20 20 0 0 0 20 40 MC- 1 8 0 MA ECW -Male- y = 1 .0 0 0 2 x - 0 .0 0 1 2 R 2 = 0 .5 4 5 1 60 80 0 20 40 MC- 1 8 0 MA ECW -Female- 60 80