Variable SCI Controls IGF-1   .40* Total FFM .39*   Trunk FFM .47*   Arm FFM .42*

Table 4: Partial correlation coefficients between osteocalcin and body composition and blood measures, controlling for age in spinal cord injured (SCI) and control participants. FFM=lean tissue mass; IGF-1=insulin-like growth factor-1. *correlation is significant at p<0.05 (1-tailed).