I only just saw this reply. Mate how does it say nothing about tendons? It expresses that oxandrolone increases collagen synthesis. Collagen synthesis is vital in tendon repair.
Let me go through this article, as always medical publications are not the most clear-cut publications that can be...
Study that supports anavars affects on collagen synthesis:
In vivo, there are reported increases in wound breaking strength with anabolic steroid therapy, including oxandrolone. [1,5,12] During the early stages of gain in wound breaking strength of healing incisional wounds, there is increased...