The Ready State Virtual Mobility Coach is like having a virtual Kelly Starrett in your pocket.
Kathrin, I found this video helpful in identifying the cause of my butt wink –
Coupled with this one for techniques to improve hip flexion –
I also found that box squatting to a depth where I don’t butt wink, is helping to reinforce good technique while I work on my mobility.
Here’s a good box squat vid –