The 90/90 position is one of my favorite positions for improving hip mobility, one we use all the time.
The position checks a lot of boxes…we can work hip internal rotation, hip external rotation, and we can work on transferring from internal to external rotation.
By adding the Kettlebell we add a little bit of core stability. That core stability gives the hips a slightly more stable base to work off of.
Give it a shot and let me know what you think 💪