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.
Nonmineralized-bone collagen fibrils were randomly photographed at 46000-fold magnification using transmission electron microscopy (TEM), and diameters of collagen fibrils were measured in 4 groups (n≥3 samples, n≥500 collagen fibrils per group) Measurement of fibril diameters in cortical areas showed the same impact of exercise on the diameters in both groups.
