The researchers from National Institutes of Health in Bethesda, Maryland reviewed medical charts from 227 overweight and 128 non-overweight children. The overweight children were four and a half times more likely to have experienced some type of skeletal fracture than those who were a healthy weight. The overweight children were also four times more likely to suffer from bone or muscle pain.The most common type of musculoskeletal pain - knee pain - was seen in 6.6% of overweight children, compared to 2.3% of those of normal weight kids.Overweight children also reported more mobility problems.People of above normal weight generally have denser bones and are therefore have a lower risk of fracture.