Consistently watching high levels of television leads poor bone health - Flatimes

Wednesday, 13 July 2016

Consistently watching high levels of television leads poor bone health

Extra 1,000 steps daily shows benefits for children with type 1 diabetes

Consistently watching high levels of television during childhood and adolescence were linked with lower peak bone mass at age 20 years in a recent study.

In the Journal of Bone and Mineral Research study, hours of television watching per week were recorded by parental or self-report at 5, 8, 10, 14, 17 and 20 years of age in 1181 participants.

Those who consistently watched ≥14 hours/week of television had lower bone mineral content than those who watched less television, even after adjusting for height, body mass, physical activity, calcium intake, vitamin D levels, alcohol, and smoking (all at age 20).

“Since attainment of optimal peak bone mass is protective against osteoporosis later in life, reducing sedentary time in children may have long-term skeletal benefits,” the authors wrote.

Meanwhile, according to new research from the University of Adelaide and the Women’s and Children’s Hospital, Australia, keeping count of daily steps and boosting physical activity can really pay off for children with type 1 diabetes.
For the first time, researchers have shown that children who have type 1 diabetes can improve their cardiovascular health, simply by taking an extra 1000 steps a day.

Researchers tracked the daily physical activity of 90 pre- to early-teenage children with type 1 diabetes.The results – published online ahead of print in the journal Diabetes Care – showed that those who undertook additional physical activity showed improvements in their blood vessel structure, and other reductions in risk factors for heart disease.

“Children with type 1 diabetes often report lower physical activity levels than recommended for children of the same age,” says lead author Dr. Alexia Peña, from the University of Adelaide’s Robinson Research Institute and Pediatric Endocrinologist at the Women’s and Children’s Hospital in Adelaide.

“We also tend to see early signs of atherosclerosis – a build up of plaque in the arteries – and other adverse cardiovascular risks at an earlier age than usual for these children.”

The research team found that 55 per cent of the children took fewer than 10,000 steps per day.“There were clear correlations between artery thickness and the average number of steps per day. With an increase of 1000 steps each day, we saw a measurable decrease in this arterial thickness,” Peña says.

“In the children who had extra physical activity, we also saw reductions in weight, blood pressure, and trigylcerides, which indicates an overall reduction in risk of heart disease.”

Peña says this is the first time the daily number of steps has been shown to directly relate to early signs of adverse cardiovascular risk in children with type 1 diabetes.

“Our findings emphasize the importance of physical activity for children, and the need for advice on the benefits of exercise for children with type 1 diabetes. The more steps they do, the better,” Peña says.

- The article first appeared on The Guardian

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