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:
“The gifts he gave were that some would be apostles, some prophets, some evangelists, some pastors and teachers, to equip the saints for the work of ministry, for building up the body of Christ, until all of us come to the unity of the faith and of the knowledge of the Son of God, to maturity, to the measure of the full stature of Christ.”
—Bible: New Testament, Ephesians 4:11.