I think you're moving into territory in human psychology that nobody really understands. For the time being, the answer is probably "if it works for you, then

I think you're moving into territory in human psychology that nobody really understands. For the time being, the answer is probably "if it works for you, then keep doing it." If power posing before an important meeting is how you psyche yourself up to be unafraid and effective in the meeting, then why not keep doing it, even if it doesn't seem to work for everyone? Knowing the replication problems, I won't suggest power posing as a general thing. Maybe I will tell someone to try a bunch of things including power posing, and tell them to keep the things that they think are working.