I have been using the half-kneeling single arm landmine press quite a bit recently in my own training and with some of the cricket players I work with. Reason being it is a strength exercise that has a number of benefits. Firstly, when you position the trail leg appropriately you get a good static hip flexor stretch. To get the maximum benefit though, it is important to activate the same glute and brace your core.
The second benefit to this exercise is the core stability aspect of the movement. The load forces you to resist extension, making it a really good anterior core stability exercise. And, because it’s loaded asymmetrically, it serves as a great lateral and rotary core stability exercise as well.
I also really like the fact that the exercise helps work on dynamic stability of the scapula and thoracic mobility at the same time.
And if you are using an Olympic bar you have a thicker grip which activates the forearms a little more which I think is great! If you don’t have access to an Olympic bar grab a pair of Fat Gripz and use those on your regular bar.