Hip flexor overcoming isometric for buttery hips and low back relief.
The bar is an immovable object. Push into it at your max range of motion.
45 seconds+
Sucks during but feels amazing afterwards
The hybrid RDL/Rack Pull setup works well to keep the posterior chain locked in.
I like RDLs and I like Rack Pulls.
Combine them together and you get a great hamstring/glute exercise.