Body segments and biological maturation to estimate the propulsive force of the arm in young swimmers

Q4 Medicine

Revista Brasileira de Cineantropometria e Desempenho Humano Pub Date : 2020-12-02 DOI:10.1590/1980-0037.2020v22e74881

Mariana Oliveira, D. R. Queiroz, Marlene Costa, Arthur Henrique da Silva, José Raphael Leandro da Costa Silva, M. C. Correia Júnior, W. V. Melo, J. C. F. Farias Júnior, M. Santos

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Abstract

Abstract This study aimed to estimate the propulsive force of the arm (PFA) in young freestyle swimmers and propose an equation to estimate propulsive force, considering anthropometric variables and maturity offset. Seventy-six competitive swimmers [boys: n= 53; age= 13.58 ± 1.79; girls: n= 23; age= 12.98 ± 1.79] participated in this study. Height, lean mass, sitting height, leg length, arm span, triceps skinfold, arm muscle area (AMA), and maturity offset were assessed. The propulsive force of the arm was measured by the tethered swim test. A multiple linear regression (concurrent model) was used to develop the equation using the variables AMA, arm span, and maturity offset. The Bland–Altman method was used to compare the values found between PFA and propulsive force–estimated (PFE). There was a significant correlation between the variables PFA and AMA (R²=0.12; p<0.01), arm span (R²=0.21; p<0.01), and maturity offset (R²=0.20; p<0.01) for boys, whilst in girls theses values were: AMA (R²=0.07;p=0.20), arm span (R²=0.50;p<0.01), and maturity offset (R²=0.44;p<0.01). Two linear equations were established to predict the PFA in boys and girls Bland-Altman analysis showed an agreement between PFA and PFE. In conclusion, the equation is a valuable tool to monitor training and help improve swimmer performance.

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用身体分段和生物成熟度来估计年轻游泳者手臂的推进力

摘要:本研究旨在估计年轻自由泳运动员的手臂推进力(PFA)，并提出一个方程来估计推进力，考虑人体测量变量和成熟偏移。76名竞技游泳运动员[男孩:n= 53;年龄= 13.58±1.79;女生:n= 23;年龄= 12.98±1.79]参加本研究。评估身高、瘦质量、坐高、腿长、臂跨、肱三头肌皮褶、手臂肌肉面积(AMA)和成熟度偏移。手臂的推进力通过系绳游泳试验来测量。使用多元线性回归(并发模型)来开发使用变量AMA，臂展和成熟度偏移的方程。使用Bland-Altman方法比较PFA和推进力估计(PFE)之间的值。变量PFA与AMA之间存在显著相关(R²=0.12;p<0.01)，臂展(R²=0.21;p<0.01)，成熟度偏移量(R²=0.20;男孩的AMA值(R²=0.07,p=0.20)、臂展值(R²=0.50,p<0.01)、成熟度偏移值(R²=0.44,p<0.01)。建立了两个线性方程来预测男孩和女孩的PFA, Bland-Altman分析显示PFA和PFE之间的一致。总之，这个公式是一个有价值的工具来监控训练和帮助提高游泳运动员的表现。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Brasileira de Cineantropometria e Desempenho Humano Medicine-Physiology (medical)

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

20 weeks

期刊介绍： The Brazilian Journal of Kinanthropometry and Human Performance is a journal of Physical Education, Kinesiology, Sport and related areas, whose focus is human movement, being reviewed by an international panel of peers, with emphasis on the measurement of the man in its morphological and functional aspects, as well as conditioning factors of physical performance. Given the multidisciplinary nature of the journal, these areas of study are approached in several contexts, with interactions with social, behavioral, health and environmental aspects. The journal publishes original articles as well as relevant Review/Update articles and Points of View.