On this version, use the same form as the straight leg deadlift, but then drop down and perform a row, then stand up and do a curl to press. Breathe out on the row, the stand, and the overhead press. Doing this super slow will place a tremendous load on the stability of the standing leg.
Helpful tips and Tricks
If you can keep a straight spine, perform this exercise with 2 matching dumbbells or kettlebells, increasing the demand on the standing leg.