Change posture and Hunch over

Change posture verb - Undergo a change in bodily posture.

Hunch over and change posture are semantically related. In some cases you can replace term "Hunch over" with "Change posture", this terms are similar.

Hunch over verb - Round one's back by bending forward and drawing the shoulders forward.

Change posture and hunch over are semantically related. Sometimes you can use "Change posture" instead a verb "Hunch over".