Physiology homework help

Americans sit more now than any other time in history.  This can lead to a variety of health issues including injuries running the length of the body. Using approximately 400-500 words, describe how you are currently sitting.  Which muscles would need to be activated or stretched to improve your posture?  What are some potential effects on your body from sitting long term?  Include at least two scholarly references (using APA formatting and style) to guide your answers.