Vitamin D intake may be associated with lower stress fracture risk in girls
Vitamin D may be associated with a lower risk of developing stress fractures in preadolescent and adolescent girls, especially among those very active in high-impact activities, according to a report published Online First by Archives of Pediatrics & Adolescent Medicine.
Stress fractures, a relatively common sports-related injury, occur when stresses on a bone exceed its capacity to withstand and heal from those forces. But while consumption of calcium and calcium-rich dairy products is routinely encouraged for optimal bone health, researchers note in their study background that the evidence for this recommendation has been challenged.
Kendrin R. Sonneville, Sc.D., R.D., of Children's Hospital Boston, and colleagues conducted a study to identify whether calcium, vitamin D and/or the intake of dairy were prospectively associated with stress fracture risk among girls. The study included 6,712 preadolescent and adolescent girls (age 9 to 15 at baseline) in the Growing Up Today Study.
During seven years of follow-up, 3.9 percent of the girls developed a stress fracture. Dairy and calcium intakes were unrelated to risk of developing a stress fracture. However, vitamin D intake was associated with a lower risk of developing a stress fracture, particularly among those girls who participate in at least one hour a day of high-impact activity.
"In contrast, there was no evidence that calcium and dairy intakes were protective against developing a stress fracture or that soda intake was predictive of an increased risk of stress fracture or confounded the association between dairy, calcium or vitamin D intakes and fracture risk," the authors comment.
The authors also note that in a stratified analysis that high calcium intake was associated with a greater risk of developing a stress fracture, although they suggest that "unexpected finding" warrants more study.
The authors conclude their findings support the Institute of Medicine's recent increase in the recommended dietary allowance for vitamin D for adolescents from 400 IU/d to 600 IU/d.
"Further studies are needed to ascertain whether vitamin D intake from supplements confers a similarly protective effect as vitamin D consumed through dietary intake," they comment.
More information: Arch Pediatr Adolesc Med. Published online March 5, 2012. doi:10.1001/archpediatrics.2012.5
Provided by JAMA and Archives Journals
- High-impact sports associated with increased risk of stress fracture among adolescent girls Apr 04, 2011 | not rated yet | 0
- Increasing daily calcium will not reduce the risk of fractures in later life May 25, 2011 | not rated yet | 0
- Retinoid use not associated with fracture risk May 17, 2010 | not rated yet | 0
- Vitamin D supplements associated with reduced fracture risk in older adults Mar 23, 2009 | not rated yet | 0
- New study shows calcium significantly improves children's bone health Jul 30, 2008 | not rated yet | 0
- Motion perception revisited: High Phi effect challenges established motion perception assumptions Apr 23, 2013 | 3 / 5 (2) | 2
- Anything you can do I can do better: Neuromolecular foundations of the superiority illusion (Update) Apr 02, 2013 | 4.5 / 5 (11) | 5
- The visual system as economist: Neural resource allocation in visual adaptation Mar 30, 2013 | 5 / 5 (2) | 9
- Separate lives: Neuronal and organismal lifespans decoupled Mar 27, 2013 | 4.9 / 5 (8) | 0
- Sizing things up: The evolutionary neurobiology of scale invariance Feb 28, 2013 | 4.8 / 5 (10) | 14
Classical and Quantum Mechanics via Lie algebras
Apr 15, 2011 I'd like to open a discussion thread for version 2 of the draft of my book ''Classical and Quantum Mechanics via Lie algebras'', available online at http://lanl.arxiv.org/abs/0810.1019 , and for the...
- More from Physics Forums - Independent Research
More news stories
US teen births have dropped to a record low, but the country still has one of the highest rates among developed nations, the US Centers for Disease Control and Prevention said Thursday.
Health 11 minutes ago | not rated yet | 0
Calorie information in fast food restaurants used by 40 percent of 9-18 year olds when making food choices
A new study published online today (Thursday) in the Journal of Public Health has found that of young people who visited fast food or chain restaurants in the U.S. in 2010, girls and youth who were obese were more likely ...
Health 11 hours ago | not rated yet | 0
(HealthDay)—Implementation of systematic monitoring for medication adherence will allow for identification of barriers to adherence and tailoring of interventions, according to a viewpoint piece published ...
Health 13 hours ago | not rated yet | 0
(AP)—The Obama administration says more doctors and hospitals are embracing technology as adoption of computerized medical records reaches a "tipping point" in America.
Health 14 hours ago | not rated yet | 0
Johns Hopkins researchers report that hospitals may be reaping enormous income for patients whose hospital stays are complicated by preventable bloodstream infections contracted in their intensive care units.
Health 15 hours ago | not rated yet | 0
Swiss scientists reveal the mechanism responsible for aging hidden deep within mitochondria—and dramatically slow it down in worms by administering antibiotics to the young.
17 hours ago | 4.9 / 5 (9) | 1 |
Researchers from Queen Mary, University of London have led the largest sequencing study of human disease to date, investigating the genetic basis of six autoimmune diseases.
17 hours ago | 4.7 / 5 (3) | 0 |
Until now, little was scientifically known about the human potential to cultivate compassion—the emotional state of caring for people who are suffering in a way that motivates altruistic behavior.
14 hours ago | 5 / 5 (2) | 2 |
Existing research shows that bicyclists who wear helmets have an 88 percent lower risk of brain injury, but researchers at Boston Children's Hospital found that simply having bicycle helmet laws in place showed a 20 percent ...
6 hours ago | not rated yet | 0
(HealthDay)—Migraines and depression can each cause a great deal of suffering, but new research indicates the combination of the two may be linked to something else entirely—a smaller brain.
14 hours ago | 4 / 5 (2) | 0 |
A new approach for immunizing against influenza elicited a more potent immune response and broader protection than the currently licensed seasonal influenza vaccines when tested in mice and ferrets. The vaccine ...
15 hours ago | not rated yet | 0 |