RSI - Causes

• In an office environment ULD's occur in tasks that require repetitive finger, hand or arm movements such as typing or using a mouse.
• Constant vibration and/or tension can cause the tendons surrounding the Median nerve to be fatigued, causing swelling. This in turn pinches and compresses the nerve causing pain.
• Without relief the nerve can be permanently damaged.
• According to the HSE the main risk factors are: frequent or forceful or awkward gripping, squeezing, twisting, reaching; rapid, awkward or frequent movement; awkward or static postures; poor environmental conditions; and work for long periods with out breaks or changes of activity.
• In the office common risk factors include: constant computer use; poor workstation configuration; inappropriate chair; unsatisfactory working technique; and poor posture.