Small fit

A chain of gyms is aiming to attract a new group of customers with a range of special child-size fitness equipment. Many parents, worried that their children do not get enough exercise, are sending their children to these specially designed kids' gyms and are even joining themselves to make the most of a family workout. Concern is frequently expressed that today's young people spend too much time in front of the television screen instead of exercising, but some health and fitness experts warn that using weights can damage children's bodies. The BBC's Charles Rhodes reports.