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Body composition assessment by bioelectrical impedance analysis and body mass index in individuals with chronic spinal cord injury

34 63.4 1.74 20.95 Tetraplegic active SD 8.31 9.61 0.03 2.89 CI 23.69- 51.47- 1.7-1.78 17.35- 44.31 75.33 24.54 Mean 37.25 76.98 1.78 24.11 Tetraplegic inactive SD 9.94 10.46 0.05 2.82 CI 30.94- 70.33- 1.75- 22.32- 43.56 83.62 1.82 25.89 Abbreviations: SD, standard deviation; CI, confidence intervals; BMI, body mass index In Figure 1 , the difference between groups in fat percentage and BMI can be observed. For able-bodied persons, fat

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Improving Image Quality in Electrical Impedance Tomography (EIT) Using Projection Error Propagation-Based Regularization (PEPR) Technique: A Simulation Study

Epilepsy Field Proceedings - 19th Internl Conf. - IEEE/EMBS Oct. 30 - Nov. 2 1997 867 868 USA 19 Henderson R. P., Webster J. G. An impedance camera for spatially specific measurements of the thorax. IEEE Transactions on Biomedical Engineering. 1978;Bme-25(3):250-254. 10.1109/TBME.1978.326329 10.1109/TBME.1978.326329 Henderson R. P. Webster J. G An impedance camera for spatially specific measurements of the thorax IEEE Transactions on Biomedical Engineering 1978 Bme-25 3 250 254 10.1109/TBME.1978.326329 20 Hou W. D., and Mo Y. L

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A new system for measuring electrical conductivity of water as a function of admittance

all frequencies of distilled water. Distilled Water f / kHz Admittance (μS) 2-Outer Electrodes Admittance (μS) 2-Inner Electrodes Admittance (μS) 4-Electrodes 0.05 1.49 2.91 13.09 2 1.65 3.77 20.10 6 2.55 5.06 24.96 20 6.62 10.38 24.03 60 15.78 20.25 34.16 100 20.05 23.81 44.28 The configuration of the electrodes also contributes to the increase in the measured admittance. For the four electrode setup there is no current flow through the voltage measurement electrodes, thus there

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A fast method to estimate body capacitance to ground at mid frequencies

analyzer and calculated body capacitance to ground C g for the four subjects and two feet heights above to ground: 10 cm (u) and direct outsole contact (d). Subject C HLu (pF) C gu (pF) C HLd (pF) C gd (pF) 1 22.5 95.4 18.2 153.0 2 23.5 85.1 17.8 159.7 3 24.8 72.9 20.5 119.2 4 25.5 66.8 20.2 123.2 Table 3 Capacitance C HL measured with the MT4080 LCR meter and calculated body capacitance to ground C g for the four subjects and two feet heights above ground: 10 cm (u) and direct outsole

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Electrical bioimpedance spectroscopy in time-variant systems: Is undersampling always a problem?

through analogue filtering. Figure 2 Apparent frequencies of a signal with a 0.3 Hz actual frequency component, sampled at 0.2, 0.3, 0.4 and 0.5 Hz are depicted. It is clear that due to aliasing the apparent frequency differs from the actual frequency in all cases. Irrespective of choice of estimation method for the impedance spectra, be it frequency sweep, multi-sine or other, longer estimation times yield better estimates; the more periods of the stimulation and sensing voltage/current, the higher signal-to-noise ratio (SNR). For slowly varying signals, e.g

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Electrical impedance tomography methods for miniaturised 3D systems

. H. Tizzard A. Gibson A. P. a. T Tidswell Sparkes M. K. Dehghani H. Binnie C. D. Holder D. S. Neuroimage 2003 20 752 764 org/10.1016/S1053-8119(03)00301-X 17 B. Amm, T. Kao, X. Wang, G. Boverman, J. Sabatini, J. Ashe, J. Newell, S. Member, D. Isaacson and S. Member, IEEE Eng. Med. Biol. Soc., 2014, 6064–6067. Amm B. Kao T. Wang X. Boverman G. Sabatini J. Ashe J. Newell J. Member S. Isaacson D. Member S. IEEE Eng. Med. Biol. Soc 2014 6064 6067 18 H. Reinius, J. B. Borges, F

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Screening post-menopausal women for bone mineral level by bioelectrical impedance spectroscopy of dominant arm

/m 2 ) Normal 21 30.76 ± 5.51 [19.82, 43.57] NS NS Osteopenia 22 29.97 ± 6.02 [16.41, 43.42] - NS Osteoporosis 5 25.25 ± 1.33 [24.03, 27.33] - - Dominant arm Characteristic Frequency (kHz) Normal 21 51.72 ± 8.57 [39.92, 69.57] NS P < 0.005 Osteopenia 22 55.91 ± 10.01 [39.96, 75,68] - NS Osteoporosis 5 65.42 ± 12.96 [57.98, 88.30] - - Total Lumbar Spine BMD (g∙cm -2 ) Normal 21 1.048 ± 0.08 [0.934, 1.259] P < 0.001 P < 0.001 Osteopenia 22 0.855 ± 0.05 [0.784, 0

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Estimation of body composition and water data depends on the bioelectrical impedance device

±8.3 (-36±17) -18 to -12 (-43 to -30) -31 1.3 FM (kg) 31±12 19±12 0.14* 0.44** 11±7.7 (95±257) 7.7 to 13 (1.0 to 191) -4.5 26 HD subgroup (n=93) Bland-Altman 95% limits of agreement Data BIS SFBIA ICC r Bias a (%) b 95%CI Bias c (%) d Lower Upper analysed R (ohm) 730±128 606±103 -0.03 -0.05 124±168 (18±25) 90 to 159 (13 to 23) -206 454 Xc (ohm) 78±22 68±17 0.18* 0.16 10±25 (13±38) 5.2 to 16 (5.3 to 21) -40 60

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Isoconductivity method to study adhesion of yeast cells to gold electrode

.1016/S0956-5663(03)00229-X Liju Y Chuanmin R Yanbin L Detection of viable Salmonella typhimurium by impedance measurement of electrode capacitance and medium resistance Biosens. Bioelectron 2003 19 495 – 502 http://dx.doi.org/10.1016/S0956-5663(03)00229-X 24 Manli G, Jinhua Ch, Xubin Y, Kun Ch, Lihua N, Shouzhuo Y. Monitoring of cell growth and assessment of cytotoxicity using electrochemical impedance spectroscopy. Biochim. Biophys. Acta. 2006; 1760: 432-439. 10.1016/j.bbagen.2005.11.011 16388905 Manli G Jinhua Ch Xubin Y Kun Ch

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Cutoff points of BMI for classification of nutritional status using bioelectrical impedance analysis

between the cutoff points of the BMI (kg/m 2 ) and body fat ranges (%) according to Gallagher et al (2000). Fat mass (%) BMI (kg/ 2 ) Total < 18.5 18.5 – 24.9 25 – 29.9 ≥ 30.0 Men (%) < 8 3.1 (12) 4.6 (18) 0.5 (2) 0 (0) 8.3 (32) 8–20 3.9 (15) 29.3 (113) 11.6 (45) 1.8 (7) 46.6 (180) 20 – 25 0.5 (2) 6.7 (26) 10.1 (39) 2.8 (11) 20.2 (78) > 25 0.3 (1) 4.4 (17) 10.4 (40) 9.8 (38) 24.8 (96) Total 7.8 (30) 45.0 (174) 32.6 (126) 14.5 (56

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