儿童机械动力学：握力、多次单腿跳跃力和全身僵硬度的参考值

Mechanography in childhood: references for grip force, multiple one-leg hopping force and whole body stiffness.

作者信息

Lang I, Busche P, Rakhimi N, Rawer R, Martin D D

机构信息

University Children's Hospital Tübingen, Germany.

出版信息

J Musculoskelet Neuronal Interact. 2013 Jun;13(2):227-35.

PMID:23728109

Abstract

OBJECTIVE

We sought to study and procure reference values for weight-related maximum isometric grip force (MIGF), maximum voluntary force in relation to body weight (Fmvrel) and peak whole body stiffness (pKwb) in multiple one-legged hopping (m1LH) in childhood.

METHODS

We examined 868 children and adolescents (436 female) aged 3 to 19 yrs. Weight related results are reported as multiples of earth's gravity (g).

RESULTS

MIFG and Fmv(m1LH) are highly linearly correlated with body weight. After adjustment for weight, mean Fmvrel(m1LH) increases from the age of 3 to 6 yrs, then remains at 3.33 g (SD 0.31 g) between 6 and 19 yrs, independent of age and gender. The difference between legs decreases from 10% at 3 yrs to a constant 5.5% after the age of 7 yrs. Weight-adjusted MIGF also increases steeply from 3 to 6 yrs, then shows a further linear, less steep increase - in males through to age 19 yrs while females show a near-standstill after the age of 12 yrs. pKwb(m1LH) increases from the age of 7 yrs.

CONCLUSION

This data from normal children from a healthy Caucasian population provide a reference for tests of motor function.

摘要

目的

我们试图研究并获取儿童多次单腿跳跃（m1LH）中与体重相关的最大等长握力（MIGF）、相对于体重的最大随意力（Fmvrel）以及峰值全身刚度（pKwb）的参考值。

方法

我们检查了868名3至19岁的儿童和青少年（436名女性）。与体重相关的结果以地球重力（g）的倍数报告。

结果

MIFG和Fmv（m1LH）与体重高度线性相关。在对体重进行调整后，平均Fmvrel（m1LH）从3岁到6岁增加，然后在6至19岁之间保持在3.33 g（标准差0.31 g），与年龄和性别无关。双腿之间的差异从3岁时的10%下降到7岁以后的恒定5.5%。体重调整后的MIGF也从3岁到6岁急剧增加，然后显示出进一步的线性增加，但斜率较小——男性一直到19岁，而女性在12岁以后几乎停止增长。pKwb（m1LH）从7岁开始增加。