ADJ

correct, good
bad, poor
erect, upright
the normal upright posture
stiff, stooping
body

VERB + POSTURE

have
She has very good posture
adopt
maintain
change, improve

PREP

in a/the ~
He sat in a posture of absolute respect
~ for
a poor posture for driving

ADJ

defensive
agressive, threatening
military

VERB + POSTURE

adopt, assume
maintain

PREP

~ towards
to adopt a threatening posture towards an opponent