What is poor posture?

The general concept of posture refers to "the carriage of the body as a whole, the attitude of the body, or the position of the arms and legs". It is the position in which you hold your body upright against gravity while standing, sitting or lying down. Good posture is the position which is attained when the joints are not bent or twisted and the spine is aligned. Maintaining good posture involves training your body to move and function where the least strain is placed on bones, joints and soft tissues.