Poor posture results from certain muscles tightening up or shortening while others lengthen and become weak, which often occurs as a result of one’s daily activities. There are different factors that can impact on posture and they include occupation activities and biomechanical factors such as force and repetition. An example of this would be working at a computer all day long.
Risk factors for poor posture also include psychosocial factors such as job stress and strain. Workers who have higher job stress are more likely to develop neck and shoulder symptoms.
The cause of “Text neck” is the constant overload on our neck muscles and spinal structures by constantly looking down at the screen of our mobile device.
Just how much load does a constant downward-looking gaze put on the neck muscles?
When your spine is in the neutral position, the head weighs about 4.5 kilograms. At 15 degrees, bent forward, the neck sees approximately 12 kg’s. The further the degree the more weight and stress on muscles and nerves that are meant to handle only around 5 kg’s of stress.
Large loads over a period of time (sometimes 3 hours in one sitting), can do a fair bit of damage. Bear this in mind the next time you look down at your phone.