Use of total-body electrical conductivity for the assessment of body composition in middle-aged and elderly individuals.

摘要: Body composition was predicted for 114 middle-aged and elderly individuals aged 35-90 y by using total-body electrical conductivity (TOBEC), densitometry, hydrometry. Highly significant correlations were achieved between the TOBEC Phase value fat-free mass (FFM) determined densitometry (FFMd) hydrometry (FFMdw) with values ranging from 0.713 to 0.981. FFM (FFMT) consistently higher than either FFMd or FFMdw both men women in all age groups. A theoretical calculation of percent body fat performed a three-component model density, total water, bone mineral content. The recalculation used estimate new (FFMnew). These calculations resulted decrease an increase FFMnew. Because signal is unaffected mineralization, FFMT may provide more accurate estimation do this group individuals.