Teenagers need exercise to build Strong Bones

Elderly sitting - BSN

(Best Syndication News) - Sedentary teenagers are at an increased risk for low bone-mineral density and developing osteoporosis later in life, according to a new study published in PubMed.

Researchers studied both adolescent boys and girls and found that different sedentary activities put them at the greatest risk for thin bones. Studying put girls at the greatest risk for low bone density, while boys were at the greatest risk because of leisure Internet use. Girls bone density could be improved by participating in a minimum of three hours of sports, such as football, basketball, netball, or running.

Dr. Luis Gracia Marco of the University of Exeter explained that girls still need to study, but their research has demonstrated the effects that sedentary behavior has on bone health.

Marco studied 359 Spanish adolescents who participated in the Healthy Lifestyle in Europe by Nutrition in Adolescence Study. Scientists from University of Zaragoza, the University of Granada, the Spanish National Research Council (CSIC), and the University of São Paulo, Brazil worked together on this study.

The femoral neck region of the hip was measured for bone mineral density. This area is important for determining signs of osteoporosis. The researchers compared the activities of sitting, watching TV, or playing computer games to see if there was an association with low bone mineral content.

The researchers found that girls who were sitting at a desk had an associated risk. They found that the girls who spent at least three hours a week in upright high-intensity sports were at a significantly reduced risk for low bone density. In the adolescent boys, those who spent the most time on Internet leisure activities were at a higher risk for reduced bone mineral content through the whole body.

Dr. Marco said that more research is needed to determine why boys and girls differed in how the low bone density occurred.

By: Marsha Quinn
Health Reporter

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