Distractors
Good posture is about standing correctly, while good alignment is about doing sports and fitness correctly.
Posture is the orientation of all your body parts and alignment is making sure the parts are in a straight line.
They are two words that mean the same thing.
Key
Good posture is subjective, based on the view of a culture, while good alignment is objective, based on geometry.
Question
What is the difference between posture and alignment?