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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: J Acquir Immune Defic Syndr. 2013 Jun 1;63(2):209–215. doi: 10.1097/QAI.0b013e318289bb7e

Figure 1.

Figure 1

Proposed relationship between body and bone composition and the development of functional impairment in persons aging with HIV infection. Both age and HIV-1 contribute to low insulin-like growth factor (IGF)-1. Low IGF-1 is associated with central adiposity, low muscle mass, and low bone mineral density, all of which contribute to functional impairment.