upper back ache – MySymptom

Why does my upper back ache deeply when I sit without back support?

1. Introduction Deep upper back aching when sitting without support is the result of sustained isometric contraction of the postural muscles attempting to counteract gravity. Without external lumbar and thoracic support, the spine naturally collapses into a kyphotic curve, forcing the rhomboids and trapezius muscles to work relentlessly to keep the torso upright. This sustained … Read more

Why does my upper back ache right between my shoulder blades when typing?

1. Introduction An ache directly between the shoulder blades while typing is commonly caused by sustained isometric strain on the rhomboid and trapezius muscles. The forward-reaching posture required to interact with a keyboard rounds the thoracic spine and pulls the shoulder blades apart, placing these delicate interscapular muscles under continuous, exhausting tension. The human musculoskeletal … Read more