مجلة المنظومة الرياضية
Volume 13, Numéro 1, Pages 786-805
2026-03-01

Training Load And Physiological Responses In Algerian Youth Swimmers: A Descriptive Analysis



Authors : Kabes Ahmed . Hadji Abderrahmen .

Abstract

This study examined the external (training volume, duration, intensity) and internal (physiological) effects of high-performance training on elite youth swimmers, focusing on inter- and intra-individual variability in cardiovascular responses. Eleven competitive swimmers under 17 years (5 males, 6 females), all with notable national or international achievements, participated. Heart rate was continuously monitored during all training sessions using the validated Polar OH1 optical sensor, and data were analyzed via the Intervals.icu platform to assess responses across varying intensities. Descriptive statistics and Shapiro–Wilk tests guided the selection of parametric or non-parametric analyses for workload indicators, including training duration, moving time, and heart rate–derived measures. Results revealed substantial variability both within and between athletes, with most parameters showing non-normal distributions, indicating dynamic and individualized physiological stress responses. External load measures alone were insufficient to capture true training demands, as sessions of similar duration produced markedly different heart rate responses. Integrating internal and external load monitoring provides meaningful insights for individualized training prescription, optimized load management, and the development of high-level youth athletes, supporting evidence-based approaches in elite swimming programs.

Keywords

Monitoring ; Descriptive Analysis ; Training Load ; Competitive youth Swimmers .

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