Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Changes in leg lean mass and muscle strength with aging by birth cohort. 
, birth cohort 70; 
, birth cohort 71; 
, birth cohort 72; 
, birth cohort 73; 
, birth cohort 74; 
, birth cohort 76; 
, birth cohort 77; 
, birth cohort 78; 
, birth cohort 79.
