The conventional wisdom is that is more obesity in kids these days because they exercise less. If this is true, then you would expect that adding exercise into the routine of school kids would help the problem. However, research just presented at a recent Canadian Paediatric Society conference suggests that it doesn’t:
Harris said researchers looked at 13 trials of six months to three years duration in which pre- and post-BMI measurements were taken.
In studies involving nearly 10,000 children, primarily in elementary schools, none demonstrated a reduction in BMI with those who were assigned to the most phys-ed time, compared to those who didn’t have as much.
“School-based physical activity interventions do not improve BMI although they may have other beneficial health effects,” he said. “There are improvements to bone mineral density, aerobic capacity, reduced blood pressure and increased flexibility,” he added.