Examining how healthy a particular posture (or activity) is for the human body can be determined by examining the forces that are exerted on the body during the posture, and then determining if these forces place excessive physical stress on the structures involved; excessive stress can, in time, cause injury. The term “posture” literally means “position,”
so assessing healthy posture literally involves assessing the health of a position of the body.
Any particular posture places forces on many different structures of the body, so a posture might be healthy for one structure and unhealthy for another. A very common posture that many people assume for many hours each day is the posture of reading and writing/typing. Whereas many years ago, these activities were conducted with either a pen and paper or typewriter for writing, and printed paper (e.g., book, magazine) for reading; nowadays writing and reading is more often carried out with some type of digital device (e.g., desktop/laptop computer, tablet, e-reader, cell phone). The question might be: What is the healthiest mode of writing and reading amongst the usual choices?
The desktop computer is often blamed for bad posture, but I believe that amongst the available choices, old and new, it actually might offer the best potential postural choice with regard to cervicocranial posture.
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