I don’t know if it helps but I didn’t start running for six months after my THR. I used the first six months to do strength and mobility workouts along with walking up to 450 miles during that time. I started slowly and did my first 5k race at 10 months. When I did start running I did run/walks. I figure it will take me 18 months to feel like I am fully back to running. Currently I am hitting the track twice a week to get my stride and balance back.