التحدي
Volume 18, Numéro 2, Pages 269-287
2026-06-06

Impact Of Ramadan Fasting On Body Composition And Peripheral Anthropometric Parameters According To Playing Lines In U17 Football Players



Authors : Harieche Imene . Bouchareb Rafahiya .

Abstract

The main research axes that have to contain the following elements:( aim of the research, the adopted methodology, the sample, the tools used to achieve and the principal results. This longitudinal study investigated changes in body composition and peripheral anthropometric parameters in U17 football players during Ramadan fasting using a pre–mid–post test design. Eighteen players competing at the regional level were classified according to their playing lines (defenders, midfielders, and forwards). Measurements of body mass, body mass index, fat mass, muscle mass, total body water, and selected limb circumferences were collected before Ramadan, during mid-Ramadan, and after Ramadan. Statistical analysis was conducted using repeated-measures ANOVA, including a two-way interaction model (Time × Playing Line), with effect sizes calculated using partial eta squared (η²). Significant time effects were observed for body mass, total body water, and fat mass (p < 0.05), while muscle mass remained relatively stable across the three measurement points. Significant interaction effects (Time × Playing Line) indicated differentiated physiological responses according to positional demands, particularly among midfield players. Ramadan fasting induces moderate and transient alterations in body composition among U17 football players, with variations influenced by playing lines. These findings underline the importance of position-specific monitoring and individualized nutritional strategies during fasting periods.

Keywords

Ramadan fasting; Youth football; Playing lines; Body composition; Anthropometry.

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