1. 1 In the name of GOD Body Mechanics, Posture, Questionable Exercises, and Care of the Back and Neck Part1 By: F. Akyash

2. 2 Curves of vertebral column

3. Anatomy of the back  Bones of the spine  Joints  Discs that separate the vertebrae  Muscles and ligaments  Nerves

4. 4

5. 5  Minimal stress on the vertebral joints and supporting ligaments.  Body segments balanced around the center of gravity.

6. 6  Body alignment problems  Hereditary  Congenital and disease conditions  Environmental conditions  Poor fitness  Lack of knowledge  Bad habits

7. 7 Problems of Common Faulty Postures  Hyperlordotic posture

8. 8  Kypholordotic Posture

9. 9  Scoliosis Posture

10. 10  Forward head Posture  Key: anterior displacement of head relative to thorax.  Possible causes: Poor eyesight (need glasses) Poor eyesight (need glasses) Muscle fatigue/weakness Muscle fatigue/weakness Poor postural sense Poor postural sense

11. 11  Round shoulder posture