Body alignment is the optimal placement of the body parts so that the skeletal bones are efficiently used, so the muscles have to do less work for the same effect.
A good posture requires good body alignment.
Famous quotes containing the word body:
“See an old unhappy bull,
Sick in soul and body both,
Slouching in the undergrowth
Of the forest beautiful,”
—Ralph Hodgson (c. 1871–1962)