成熟高度百分比作为体细胞生长的形态计量指标:对传统简单比例标度假设的正式审查。

IF 1.4 4区医学 Q3 PEDIATRICS

Pediatric Exercise Science Pub Date : 2023-05-01 DOI:10.1123/pes.2022-0077

Lorenzo Lolli, Amanda Johnson, Mauricio Monaco, Valter Di Salvo, Greg Atkinson, Warren Gregson

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引用次数: 0

摘要

目的:评估支持成熟身高指数百分比的传统假设，即筛选身高(分子)除以实际或预测成人身高(分母)的简单比率。方法:我们检查了99名青少年足球运动员的横断面数据(实足年龄范围，11.5至17.7岁)，在筛查时骨骼发育不成熟，并在随访时提供成人身高测量数据。结果:筛检身高与成人身高线性回归的y截距值为-60 cm(95%置信区间为-115 ~ -6 cm)，不符合零y截距假设。当前身高与成人身高的相关系数为0.64(95%可信区间为0.50 ~ 0.74)，不等于变量间变异系数之比(CVx/CVy = 0.46)，说明Tanner的特殊情况不符合。该比值与分母之间的非零相关为0.21(95%置信区间为0.01 ~ 0.39)，表明成年身高普遍较矮的球员的成熟身高百分比偏低，反之亦然。结论:我们第一次证明了成熟身高百分比是一个不一致的统计数据，用于确定完成生长的程度，导致潜在的有偏见的研究和应用目的的推论。

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The Percentage of Mature Height as a Morphometric Index of Somatic Growth: A Formal Scrutiny of Conventional Simple Ratio Scaling Assumptions.

PURPOSE To assess conventional assumptions that underpin the percentage of mature height index as the simple ratio of screening height (numerator) divided by actual or predicted adult height (denominator). METHODS We examined cross-sectional data from 99 academy youth soccer players (chronological age range, 11.5 to 17.7 y) skeletally immature at the screening time and with adult height measurements available at follow-up. RESULTS The y-intercept value of -60 cm (95% confidence interval, -115 to -6 cm) from linear regression between screening height and adult height indicated the failure to meet the zero y-intercept assumption. The correlation coefficient between present height and adult height of .64 (95% confidence interval, .50 to .74) was not equal to the ratio of coefficient of variations between these variables (CVx/CVy = 0.46) suggesting Tanner's special circumstance was violated. The non-zero correlation between the ratio and the denominator of .21 (95% confidence interval, .01 to .39) indicated that the percentage of mature height was biased low for players with generally shorter adult height, and vice versa. CONCLUSION For the first time, we have demonstrated that the percentage of mature height is an inconsistent statistic for determining the extent of completed growth, leading to potentially biased inferences for research and applied purposes.

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来源期刊

Pediatric Exercise Science 医学-生理学

CiteScore

2.80

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Pediatric Exercise Science is a journal committed to enriching the scientific knowledge of exercise during childhood and adolescence. To this end it publishes information that contributes to an understanding of (a) the unique aspects of the physiologic, physical, biochemical, and psychologic responses of children to exercise, (b) the role of exercise in the treatment of pediatric chronic diseases, (c) the importance of physical activity in the prevention of illness and preservation of wellness, and (d) the means by which participation in sports may be made safer and more enjoyable for children and youth. Consideration will be given for publication of work by various methodologies consistent with the scientific approach. Besides original research, the journal includes review articles, abstracts from other journals, book reviews, and editorial comments. Pediatric Exercise Science encourages the expression of conflicting opinions regarding children and exercise by providing a forum for alternative viewpoints. At the same time it serves as a means of accumulating a base of research information that will allow application of experimental data to clinical practice. The scientific disciplines contributing to this body of knowledge are diverse. Therefore it is the purpose of this journal to provide a common focus for disseminating advances in the science of exercise during childhood. In doing so, the journal allows the opportunity for cross-fertilization of ideas between disciplines that will potentiate the growth of knowledge in this field. Pediatric Exercise Science seeks to stimulate new ideas regarding exercise in children and to increase the awareness of scientists, health care providers, and physical educators of the importance of exercise during childhood.