Relationship between BMI, physical fitness, and motor skills in youth with mild intellectual disabilities
Relationship between BMI, physical fitness, and motor skills in youth with mild intellectual disabilities
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DOI：
10.1038/sj.ijo.0803196
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发表时间：
2006-05-01
影响因子：
4.9
通讯作者：
Chow, B
中科院分区：
文献类型：
--
作者：
Frey, GC;Chow, B
简介：肥胖对身体健康和运动能力的负面影响已经在不同年龄段的青年中被记录下来;然而，这个问题还没有在轻度智力残疾的青年中被探讨过。ID青少年被认为比没有ID的同龄人更超重，身体健康程度更低，运动熟练度更低，因此确定这些变量是否与该人群相关非常重要。本研究的目的是探讨身体质量指数（BMI），身体素质和运动技能之间的关系，在一个大样本的青少年轻度ID。方法：采用系统的，分层抽样方法，选择444名青少年轻度ID，年龄6-18岁，从8所特殊教育学校在香港。使用来自香港国家评估的项目评估身体素质：6-（6-8岁）或9-（9-18岁）分钟跑步，仰卧起坐，等长俯卧撑，坐和伸展，以及皮褶总和。功能性运动技能进行了评估，在244名青年从健身样本使用测试的大运动发展-II。受试者被分为正常或超重/肥胖BMI组的基础上，国际cutoff points.Results：大约20%的样本被归类为超重/肥胖（平均BMI正常17.47 +/- 2.69;超重/肥胖24.78 +/- 4.05）。控制年龄和性别的ANCOVA显示跑步（P=0.001）和俯卧撑（P=0.05）的组间差异，但在运动或其他健身变量中无差异。在控制年龄和性别后，BMI与跑步（r=-0.27，P = 0.001）和俯卧撑（r=-0.18，P =0.008）相关。年龄和性别作为分层回归的第一个块输入，并占所有因变量的方差的大部分，除了坐和达到。在第二个区块中纳入BMI仅添加到跑步和俯卧撑的模型中（Delta R-2跑步0.04，俯卧撑=0.03，P < 0.001）。结论：超重/肥胖与轻度ID青年的有氧健身和肌肉力量相关性最低。BMI不影响样本中的其他健身措施（仰卧起坐，坐和伸展）或运动技能。该样本中超重/肥胖的不良水平需要更多关注和立即干预。
Introduction: The negative impact of obesity on physical fitness and motor abilities has been documented in youth of various ages; however, this issue has not been explored in youth with mild intellectual disabilities ( ID). Youth with ID are considered more overweight, less physically fit, and less motor proficient than peers without ID, so it is important to determine if these variables are associated in this population. The purpose of this study was to examine the relationship between body mass index (BMI), physical fitness, and motor skills in a large sample of youth with mild ID.Method: A systematic, stratified sampling method was used to select 444 youth with mild ID, aged 6-18 years, from eight special education schools in Hong Kong. Physical fitness was assessed using items from the national Hong Kong assessment: 6- (-ages 6-8 years) or 9- (ages 9-18 years) minute run, sit-up, isometric push-up, sit and reach, and sum of skinfold. Functional motor skills were assessed in 244 youth from the fitness sample using the Test of Gross Motor Development-II. Subjects were categorized into normal or overweight/obese BMI groups based on international cutoff points.Results: Approximately 20% of the sample was classified as overweight/obese ( average BMI normal 17.47 +/- 2.69; overweight/ obese 24.78 +/- 4.05). ANCOVA controlling for age and gender revealed group differences in the run (P=0.001) and push-ups (P=0.05), but not in the motor or other fitness variables. After controlling for age and gender, BMI was correlated with the run (r=-0.27, P < 0.001) and push ups (r=-0.18, P=0.008). Age and gender were entered as the first block in hierarchical regression and accounted for most of the variance in all dependent variables, except sit and reach. The inclusion of BMI in the second block added to the model for run and push-ups only (Delta R-2 run 0.04, push-ups =0.03, P < 0.001).Conclusion: Overweight/obesity is minimally associated with aerobic fitness and muscular strength in youth with mild ID. BMI did not impact other fitness measures (sit-up, sit and reach) or motor skills in the sample. The undesirable level of overweight/ obesity in this sample requires increased attention and immediate intervention.