Evidence of a cumulative effect for risk factors predicting low bone mass among male adolescent athletes
Evidence of a cumulative effect for risk factors predicting low bone mass among male adolescent athletes
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DOI：
10.1136/bjsports-2016-096698
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发表时间：
2017-02-01
影响因子：
18.4
通讯作者：
Nattiv, Aurelia
中科院分区：
文献类型：
--
作者：
Barrack, Michelle T.;Fredericson, Michael;Nattiv, Aurelia
背景有限的研究已经评估了男性青少年运动员低骨矿物质密度（BMD）的危险因素。Aims/objectives为了评估低BMD（定义为过去一年中BMD Z评分30（OR= 6.4，95%CI 1.5至27.1））的预测因素。最强的双变量和三变量风险因素分别包括每周里程> 30+应力性骨折史（OR= 17.3，95%CI 1.6至185.6）和每周里程> 30+< 85%预期体重+应力性骨折史（OR= 17.3，95%CI 1.6至185.6）。当预测低BMD时，风险因素是累积的（包括< 85%的预期体重，每周里程> 30，应力性骨折史和< 1份富含钙的食物/天）：0-1个风险因素结论男性青少年跑步运动员的体重、BMI和脊柱BMD Z评分值较低。低BMD的风险与增加的风险因素呈分级关系，突出了使用方法优化该人群骨量的重要性。
Background Limited research has evaluated risk factors for low bone mineral density (BMD) in male adolescent athletes.Aims/objectives To evaluate predictors of low BMD (defined as BMD Z-score 30 in the past year (OR= 6.4, 95% CI 1.5 to 27.1). The strongest two-variable and three-variable risk factors included weekly mileage > 30+ stress fracture history (OR= 17.3, 95% CI 1.6 to 185.6) and weekly mileage > 30+< 85% expected weight + stress fracture history (OR= 17.3, 95% CI 1.6 to 185.6), respectively. Risk factors were cumulative when predicting low BMD (including < 85% expected weight, weekly mileage > 30, stress fracture history and < 1 serving of calcium-rich food/ day): 0-1 risk factors (11.1%), 2 risk factors (42.9%), or 3-4 risk factors (80.0%), p< 0.001).Conclusions Male adolescent runners exhibited lower body weight, BMI and spine BMD Z-score values. The risk of low BMD displayed a graded relationship with increasing risk factors, highlighting the importance of using methods to optimise bone mass in this population.