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Pre-Existing Conditions and Psychosocial Factors
Pre-existing conditions that may cause or make some people more susceptible to
musculoskeletal disorders include the following: hereditary factors, vascular disorders, obesity,
nutritional deficiencies such as Vitamin B deficiency, endocrine disorders such as diabetes,
hormonal imbalances, connective tissue disorders such as arthritis, prior trauma (to the hands,
wrists, arms, shoulders, neck, back, or legs), prior musculoskeletal disorders, aging, fluid
retention due to pregnancy, poor physical conditioning, dietary habits and other conditions.
Psychosocial factors associated with these disorders include: workplace stress, poor job
satisfaction, lack of support by management and/or lack of control over one's work.
Contact a doctor if you experience pain, tenderness, swelling, burning, cramp, stiffness,
throbbing, weakness, soreness, tingling and/or numbness in the hands, wrists, arms,
shoulders, neck, back, and/or legs.
Epilepsy Warning
Some people are susceptible to epileptic seizures or loss of consciousness when exposed to
certain flashing lights or light patterns in daily life. Such people may have a seizure while
watching television images or playing certain games. This may happen even if the person has
no medical history of epilepsy or has never had any epileptic seizures.
If you or anyone in your family has ever had symptoms related to epilepsy (seizures or loss of
consciousness) when exposed to flashing lights, consult your doctor prior to playing games
with such features. We advise that parents monitor the use of games by their children. If you
or your child experience any of the following symptoms such as dizziness, blurred vision, eye
or muscle twitches, loss of consciousness, disorientation, any involuntary movement or
convulsion while playing a game, IMMEDIATELY discontinue use and consult your doctor.
