Departamento de Diversidad e Inclusividad Educativa, Universidad Católica del Maule, Talca, Chile.
Faculty of Education, Psychology and Sport Sciences, University of Huelva, Huelva, Spain.
Front Public Health. 2023 Jan 26;10:1072684. doi: 10.3389/fpubh.2022.1072684. eCollection 2022.
Measurement of hand grip strength (HGS) has been proposed as a key component of frailty and has also been suggested as a central biomarker of healthy aging and a powerful predictor of future morbidity and mortality.
(a) To determine whether a nonlinear relationship model could improve the prediction of handgrip strength (HGS) compared to the linear model and (b) to propose percentiles to evaluate HGS according to age and sex for a regional population of Chile from infancy to senescence.
A cross-sectional descriptive study was developed in a representative sample of the Maule region (Chile). The volunteers amounted to 5,376 participants (2,840 men and 2,536 women), with an age range from 6 to 80 years old. Weight, height, HGS (right and left hand) according to age and sex were evaluated. Percentiles were calculated using the LMS method [(L (Lambda; asymmetry), M (Mu; median), and S (Sigma; coefficient of variation)].
There were no differences in HGS from 6 to 11 years of age in both sexes; however, from 12 years of age onwards, males presented higher HGS values in both hands ( < 0.05). The linear regression between age with HGS showed values of = 0.07 in males and = 0.02 in females. While in the non-linear model (cubic), the values were: = 0.50 to 0.51 in men and = 0.26 in women. The percentiles constructed by age and sex were: P5, P15, P50, P85, and P95 by age range and sex. This study demonstrated that there is a nonlinear relationship between chronological age with HGS from infancy to senescence. Furthermore, the proposed percentiles can serve as a guide to assess and monitor upper extremity muscle strength levels at all stages of life.
手握力（HGS）的测量已被提议作为虚弱的一个关键组成部分，也被认为是健康衰老的核心生物标志物，以及未来发病率和死亡率的有力预测指标。
（a）确定非线性关系模型是否可以比线性模型更好地预测握力（HGS），以及（b）根据年龄和性别为智利一个地区的人口提出评估 HGS 的百分位数，从婴儿期到老年期。
在马乌莱地区（智利）的一个代表性样本中开展了一项横断面描述性研究。志愿者共计 5376 名参与者（2840 名男性和 2536 名女性），年龄在 6 至 80 岁之间。评估体重、身高、根据年龄和性别划分的 HGS（右手和左手）。使用 LMS 方法（[L（Lambda；不对称），M（Mu；中位数）和 S（Sigma；变异系数）]计算百分位数。
在两性中，6 至 11 岁之间的 HGS 没有差异；然而，从 12 岁开始，男性的双手 HGS 值更高（<0.05）。年龄与 HGS 的线性回归显示男性为 = 0.07，女性为 = 0.02。而在非线性模型（三次）中，数值分别为男性 = 0.50 至 0.51，女性 = 0.26。根据年龄和性别构建的百分位数为：P5、P15、P50、P85 和 P95 按年龄范围和性别划分。本研究表明，从婴儿期到老年期，HGS 与年龄之间存在非线性关系。此外，提出的百分位数可以作为评估和监测生命各个阶段上肢肌肉力量水平的指南。
