Kids Spending Limit 45 hours per week to a computer or a TV

The shock will increase fears of a worsening crisis of obesity. Nine of 10 children who are expected to be over weight in 2050, with one in six chronically thick.

400-meter Olympic gold medal list Christine Ohuruogu said: "Computers can be fun, but nothing replaces experience playing sports."

Teens spend 45 hours a week before the computer or TV - but play sports for two hours alone.

And two out of three 12to 16-year-olds received no encouragement from their parents to participate in sport, research showed yesterday.

Among girls, sports are already seven of their favorite activity is assessed as fourth three years.