Up to ten people a week are being hospitalized with injuries caused by playing Nintendo Wii games, prompting doctors in Britain to issue warnings of the dangers associated with the video game system.
"There has been a 100 percent increase in patients complaining of Wii-itis," Dr. Dev Mukerjee of Broomfield Hospital, Essex, told The Sun newspaper.
Most patients are admitted after playing tennis or running games which involve sudden movements, resulting in tendon stretching or tearing.
"It's possible Wii-itis may lead to rheumatism or arthritis later in life. Patients often have inflamation of the shoulder or wrist," said Dr. Mukerjee.
Another common injury is dubbed Wii-knee, blamed on the bending of the knee from the Wii-Fit game. This involves a special platform and a series of movements ranging from yoga to strength-training moves.
In extreme cases, the kneecap can be dislocated or pop out of joint.
Doctors treat Wii-knee with cortisone injections, icing, and anti-inflammatory painkillers. Treatment can last for three months.
So, what to do?
As with any exercise program, doctors advise stretching exercises before play.