change posture vs arise

change posture and arise both are verbs.

Word	Noun	Adjective	Verb	Adverb
change posture	No	No	Yes	No
arise	No	No	Yes	No

As verbs, arise is a hyponym of change posture; that is, arise is a word with a more specific, narrower meaning than change posture:

change posture (verb)	arise (verb)
undergo a change in bodily posture	get up and out of bed
	result or issue
	rise to one's feet
	move upward
	take part in a rebellion; renounce a former allegiance
	come into existence; take on form or shape
	originate or come into being