Comparing the Whole Body Impedance of the Young and the Elderly using BIMS
2
조회
0
다운로드
2
인용
0
참고문헌
키워드
초록
The bioelectrical impedance (BI) for the young and the elderly was measured using bioelectrical impedance spectroscopy (BIS). First, while applying a current of 600 µA to the foot and hand, BI was measured at 50 frequencies ranging from 5 to 1000 kHz. The BI for young subjects was considerably lower than that for old subjects since young subjects have more lean mass (hydration). The prediction marker was 0.74 for young subjects and 0.78 for old subjects. Second, a Cole-Cole diagram was obtained for young subjects and old subjects, indicating the different characteristic frequencies. At 50 kHz, the average phase angle was 7.8o for young subjects whereas that was 6.1o for old subjects. Third, BIVA was analyzed for young subjects and old subjects. The vector length was 210.89 [ ] for young subjects and 326.12 [Ω/m] for old subjects. At 50 kHz, the resistance (R/H) and the reactance (XC/H) divided by height were 208.94 [Ω/m] and 28.68 [Ω/m] for young subject, and 324.33 [Ω/m] and 34.09 [Ω/m] for old subjects.
Abstract
The bioelectrical impedance (BI) for the young and the elderly was measured using bioelectrical impedance spectroscopy (BIS). First, while applying a current of 600 µA to the foot and hand, BI was measured at 50 frequencies ranging from 5 to 1000 kHz. The BI for young subjects was considerably lower than that for old subjects since young subjects have more lean mass (hydration). The prediction marker was 0.74 for young subjects and 0.78 for old subjects. Second, a Cole-Cole diagram was obtained for young subjects and old subjects, indicating the different characteristic frequencies. At 50 kHz, the average phase angle was 7.8o for young subjects whereas that was 6.1o for old subjects. Third, BIVA was analyzed for young subjects and old subjects. The vector length was 210.89 [ ] for young subjects and 326.12 [Ω/m] for old subjects. At 50 kHz, the resistance (R/H) and the reactance (XC/H) divided by height were 208.94 [Ω/m] and 28.68 [Ω/m] for young subject, and 324.33 [Ω/m] and 34.09 [Ω/m] for old subjects.
참고문헌 (26)
- A. Thomasset, "Bio-electrical properties of tissue impedance measurements", Lyon Med, 207, pp.107~118 (1962)
- B. E Lingwood, "Biomedical applications of electrical impedance analysis", Proc. Of ISSAP, 1, pp.367~370 (1999)
- H. C Lukaski, "Methods for the assessment of human body composition : traditional and new", The American journal of clinical nutrition, 46, pp.537~556 (1987)
- L. C. Ward, "Segmental bioelectrical impedance analysis : an update", Lippincott Williams & Wilkins, 15(5), pp.424~429 (2012)
- H. C. Lukaski, "Biological indexes considered in the derivation of the bioelectrical impedance analysis", The American journal of clinical nutrition, 64(3), pp.397~404 (1996)
- P. Deurenberg, "Multi-frequency impedance for the prediction of extracellular water and total body water", Br. J. Nutr, 73(3), pp.349~358 (1995)
- E. M. Lusseveld, "Multi-frequency bioelectrical impedance as a measure of differences in body water distribution", Ann. Nutr. Metab, 37(1), pp.44~51 (1993)
- G. McNeill, "Body fat in lean and overweight women estimated by six methods", Br. J. Nutr, 65(2), pp.95~103 (1991)
- S. Kumar, "Phase angle measurement in healthy human subjects through bio-impedance analysis", Iran J Basic Med Sci, 15(6), pp.1180~1184 (2012)
- A. Bosy-Westphal, "Phase angle from bioelectrical impedance analysis : population reference values by age, sex, and body mass index", J. of parenteral and enteral nutrition, 30(4), pp.309~316 (2006)
- O. Selberg, "Norms and correlates of bioimpedance phase angle in healthy human subjects hospitalized patients, and patients with liver cirrhosis", Eur. J. Appl. Physiol, 86, pp.509~516 (2002)
- D. Gupta, "Bioelectrical impedance phase angle in clinical practice : implications for prognosis in advanced colorectal cancer", Am. J. Cli. Nutr, 80, pp.1634~1638 (2004)
- R. Buffa, "Accuracy of specific BIVA for the assessment of body composition", PLoS One, 8, pp.e58533~ (2013)
- P. P. Urone, "College Physics", pp.2001, BROOKS
- H. D. Young, "University Physics", pp.1064~1074 (2008), Addison Wesley
- K. S. Cole, "Dispersion and absorption in dielectrics : I. alternating current characteristics", Journal of chemical physics, 9, pp.341~351 (1936)
- R. F. Kushner, "Bioelectrical impedance analysis : a review of principles and applications", J. Am. Coll. Nutr, 11, pp.119~209 (1992)
- D. Gupta, "Bioelectrical impedance phase angle as a prognostic indicator in breast cancer", BMC Cancer, 8, pp.249~256 (2008)
- H. C. Lukaski, "Assessment of fat-free mass using bioelectrical impedance measurements of the human body", Am. J. of Clin. Nutr, 41, pp.810~817 (1985)
- K. Norman, "Bioelectrical phase angle and impedance vector analysisClinical relevance and applicability of impedance parameters", Clinical Nutrition, 31, pp.854~861 (2012)
- E. M. Bartels, "Multi-frequency bioimpedance in human muscle assessment", Physio. Rep, 3(4), pp.1~10 (2015)
- L. Nescolarde, "Localized bioimpedance to assess muscle injury", Physiol. Meas, 34, pp.237~245 (2013)
- S. Di. Somma, "Bioimpedance Vector Analysis(BIVA)for Diagnosis and Management of Acute Heart Failure", Curr. Emerg. Hosp. Med. Rep, 2, pp.104~111 (2014)