Unfortunately I can't find much information on this question anywhere. Hope someone here can help to clear things out.
I know the classic exercise for hip flexor (psoas) stretch is the kneeling hip flexor stretch. But I can't hold it for more than 20 seconds, probably because I don't do it correctly. I fatigue too quickly and give up. Also when I do this exercise on my left leg it stretches my quads more than hip flexors, even when I tilt the hip in neutral position. probably because I have tight very tight quads. very hard to hold this stretch for long.
So I was looking for other stretching exercises and found this exercise
It feels like the hip flexors are being stretched but I want to be sure. When I perform it for 3 minutes or more after running and then stand up I feel really tall, like my hip comes to neutral position automatically without conscious control from my side. I thought maybe this exercise really does stretch the hip flexors?
Q: or does this exercise (in the image) stretch more the adductor muscles than the psoas?