DF50 algorithms
ImpediMed's DF50 is an FDA cleared medical device. It uses a single 50 kHz frequency and algorithms to provide assessments of body composition. As of this date (February 19, 2006), ImpediMed's DF50 provides three (3) algorithm that the user of the device can choose from. All three have been published in peer-reviewed medical journals. Here are the citations on the three algorithms:
General Population - Lukaski, et al
Lukaski HC, Johnson PE, Bolonchuk WW, Lykken GI. Assessment of fat-free mass using bioelectrical impedance measurements of the human body. American Journal of Clinical Nutrition, 41: April 1985, pp 810-817
Obese Population - Segal, et al
Segal K, van Loan M, Fitzgerald PI, Hodgdon J, Van Itallie T. Lean body mass estimation by bioelectrical impedance analysis; a four-site cross-validation study. American Journal of Clinical Nutrition, 47: 1988, pp 7-14
Pediatric Population - Cordain, et al
Cordain L, Whicker R, Johnson J. Body composition determination in children using bioelectrical impedance. Growth Development & Aging, 52:1988 pp 37-40
