Until now it was known that exercise plays an important role in the healthy physical development of children, but now they have also determined which program would be best for them to keep their bones healthy.

Researchers from the University of South Australia studied 804 children, all between 11 and 13 years old. The world’s first study on the subject found that children need more moderate to intense exercise, more sleep and less sitting to keep their bones healthy. The results of his research a Bone and Mineral Research Journal published in the scientific journal.

An hour and a half of a child’s ideal is an hour and a half of moderate intensity exercise (sports or running), 3.4 hours of light movement activity (walking, homework), 8.2 hours of sitting in one place (school, study , reading) and 10, 9 hours of sleep.

“Children’s daily activities have a serious impact on bone health, but until now we didn’t know what the perfect ratios are. You could have known that more exercise was beneficial, but we can’t increase it at the expense of other activities,” Dot said. Dumuid, head of research.

Up to 90 percent of maximum bone mass is reached between the ages of 18 and 20, so the amount of exercise and sleep in childhood and adolescence is especially emphasized.

Children’s bone health provides the main protection against osteoporosis, which is a leading cause of bone fractures in adults and a major public health problem, and represents a significant economic and social burden, Dumuid explained.

The children’s movement was measured with a sensor worn 24 hours a day for eight days. This was supplemented by the children’s own notes on the time they spent sleeping and awake. Bone mass was examined by CT scans of the ankle and tibia.

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