Renner has been chronicling his recovery onsocial media, and posted his latest milestone on Thursday via anInstagram story.
First attempt at a light jog with weight assisted lift for the broken tibia, he captioned the video.
Pain is progress for me.

Jeremy RennerL Albert L. Ortega/Getty Images)
Renner was using an anti-gravity treadmill and was keeping a slow but steady pace.
Renner is recovering from more than 30 broken bones sustained when a 14,000-pound snow plow fell on him.
While Renner progresses, he did allow that his legs still broken.

Thank goodness for the titanium, he added.