Body Composition Techniques in Health and Disease by P. S. W. Davies, T. J. Cole

By P. S. W. Davies, T. J. Cole

Physique composition reports are utilized in a large choice of fields together with human biology, drugs, activities technology, epidemiology, and nutrients. they're used to foretell later physique composition from youth measures, to realize bone density loss within the aged or in athletes lower than heavy education, to evaluate weight problems in teenagers and adults, and to enquire the most likely results of malnutrition. lately, there was a resurgence of curiosity within the box of physique composition, including swift improvement of an entire new variety of evaluation concepts. during this quantity, new and previous concepts are evaluated and destiny advancements and goals are mentioned. The chapters think little history wisdom, and may as a result be invaluable to nutritionists, biologists, clinicians and scientific physicists alike.

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B. E. (1990). 7 MeV neutrons. In In Vivo Body Composition Studies, ed. S. E. G. D. A. Dilmanian, pp. 395-401. New York: Plenum. , Dutton, J. & Evans, C J . (1990). The application of a pulsed fast-neutron beam to partial body in vivo activation analysis of minerals and trace elements. Journal ofRadioanalytical and Nuclear Chemistry, Articles, 140, 141-51. , Yasumura, S. H. (1987). Use of a pulsed neutron generator for in vivo measurement of body carbon. In In Vivo Body Composition Studies, ed. K J .

They differ from the first generation in that they are able to measure body impedance at more than one frequency. Modern electronics allow the quick measurement of impedance at a series of frequencies, ranging from low (about 1 kHz) to very high ( > 1 MHz). There are, however, practical difficulties in measuring body impedance at such extreme frequencies, due for example to contact resistance between the electrodes and the skin, and the characteristics of the current at high frequency. It is theoretically possible to distinguish between the extra- and intracellular water compartments using multi-frequency impedance (Jenin et al, 1975; Settle et al, 1980).

N. (1990). Meaurement of body fat by neutron inelastic scattering: comments on installation, operation and error analysis. In In Vivo Body Composition Studies, ed. S. E. G. D. A. Dilmanian, pp. 339-47. New York: Plenum. In vivo neutron activation analysis 35 Kehayias, J J . & Zhuang, H. (1993). Measurement of regional body fat in vivo in humans by simultaneous detection of regional carbon and oxygen using neutron inelastic scattering at low radiation exposure. In Human Body Composition. In Vivo Methods, Models and Assessment, ed.

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