Figure 5From: Non-invasive muscle contraction assay to study rodent models of sarcopenia Body composition of adult retired breeder rats (10-12 month old retired breeders (RB)) and 4 subgroups of aged rats (24 months). The subgroups (n = 6 for each subgroup) were screened from 315 aged rats based on body composition parameters (fat mass, lean mass, body weight (BW)). The lean subgroups body composition is indistinguishable from adult rats. P values are given compared to 10-12 month old RB.Back to article page