The influence of anthropometric variables, body composition, propulsive force and maturation on 50m freestyle swimming performance in junior swimmers: An allometric approach

Marcos Andre Moura dos Santos, R Henrique, M Salvina, A Oliveira Silva, M de Valois Correia Junior, D Queiroz, Michael Duncan, Jose Maia, Alan M. Nevill

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    2 Citations (Scopus)
    17 Downloads (Pure)

    Abstract

    The purpose of the current article was to use allometric models to identify the best body size descriptors and other anthropometric variables, body composition, and offset maturity that might be associated with the youngsters’ 50m personal-best (PB) swim speeds (m·s -1). Eighty-five competitive swimmers (male, n=50; 13.5±1.8 y; female, n=35; 12.6±1.8 y) participated in this study. Height, body mass, sitting height, arm span, skinfolds, arm muscle area (AMA), and maturity offset were assessed. Swimming performance was taken as the PB time recorded in competition, and the propulsive force of their arm (PFA) was assessed by the tied swimming test. The multiplicative allometric model relating 50m PB swim speeds (m·s -1) to all the predictor variables found percentage body fat as a negative [(BF%) β= -.121±.036; P=0.001], and PFA (PFA β=.108±.033; P=0.001) and the girl's arm span (β=.850±.301; P=0.006), all log-transformed, as positive significant predictors of log-transformed swim speed. The adjusted coefficient of determination, R adj 2 was 54.8% with the log-transformed error ratio being 0.094 or 9.8%, having taken antilogs. The study revealed, using an allometric approach, that body fatness and PFA were significant contributors to 50m freestyle swim performance in young swimmers.

    Original languageEnglish
    Pages (from-to)1615-1620
    Number of pages6
    JournalJournal of Sports Sciences
    Volume39
    Issue number14
    Early online date4 Mar 2021
    DOIs
    Publication statusPublished - 2021

    Bibliographical note

    This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Sports Sciences, on 04/03/2021, available online: http://www.tandfonline.com/10.1080/02640414.2021.1891685

    Copyright © and Moral Rights are retained by the author(s) and/ or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This item cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder(s). The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders.

    Keywords

    • Swim speed
    • allometric models
    • personal-best swim speeds
    • propulsive force

    ASJC Scopus subject areas

    • Orthopedics and Sports Medicine
    • Physical Therapy, Sports Therapy and Rehabilitation

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