Body Posture

In our current society, many of us have desk bound jobs facing the computer.
Long hours of sitting on the chair facing the computer can introduce many muscle imbalances in our body.  The person will tend to lean forward at the computer screen resulting in Kyphosis (Hunchback) as well as the head being shifted forward.
In addition, siting long time on a chair will cause the hamstring, bum and abdominal region to be fat and weak. Fat and weak buttocks and hamstrings will cause all the weight of the person to be supported on the knees, resulting in the person having knee and knee cap problems.  The region around the abdominal only has the spinal cord as the only bone in the region. When the abdominal muscle is weak, all the weight is supported mainly by the lower back muscles resulting in back problems.
Aside from work, we may also have other muscle problems acquired from improper practice of sports, over reliance of certain parts of the body. An example would be sclerosis due to being either a left handed or right handed person and only use that side of the arm and shoulder to perform task that require strength.
We can actually improve our body posture though Ashtanga Yoga practice. The poses Utthita Parsvakonasana and Virabhadrasana are good for strengthening the hamstring muscles. Navasana,  Ubhaya Padangusthasana and Urdhva Mukka Paschimattanasana are good for strengthening the abdominal muscles. Urdhva Dhanurasana and Sirsasana are good for Kyphosis. Utthita Trikonasana is good for simple sclerosis.
Last but not least, Ashtanga Yoga allows a person to develop body awareness of their existence of their muscles. This allows more muscles to be trained resulting in the even distribution of the effort to be used in all activities including supporting the body.
For me, Ashtanga Yoga has helped me greatly for my Kyphosis problem and I am currently working on my sclerosis problem. Do not hesitate and start practicing Yoga to correct your posture!