When a muscle, tendon, nerve, or joint is stressed and traumatized on a repeated basis for days, months or years,
those body tissues eventually become damaged.
This leads to a work-related musculoskeletal disorder (MSD).
Work-related musculoskeletal disorders, sometimes referred to as repetitive strain injuries (RSI),
are caused by increased trauma to an area and and overuse to injuries.
When a MSD develops a worker experiences: