UMA PROPOSTA DE TABELA NORMATIVA DO SALTO COM CONTRAMOVIMENTO E SALTO PARTINDO DA POSIÇÃO AGACHADO DE JOVENS JOGADORES DE FUTEBOL
DOI:
https://doi.org/10.46551/rn20251622500111Abstract
This study aimed to present a normative table for the performance of countermovement jump height and squat jump height in U-15 soccer players. The second objective was to compare the performance of players grouped by best and worst performance in these tests. The study included 88 male players (14.1 ± 1.0 years old) who trained twice weekly for 120 minutes per session. The normative table was created using five performance rating scales based on the 5th, 25th, 50th, 75th, and 95th percentiles, ranging from 'Very Poor' (≤5) to 'Excellent' (>95). The average countermovement jump performance was 31.2 ± 5.1 centimeters, while the squat jump was 27.4 ± 4.3 centimeters. As expected, grouping players by top and lower performance allowed a clear differentiation between them in both the countermovement jump (t(58) = 14.516; p < 0.001; effect size = 0.89 [very large]) and the squat jump (t(42) = 14.635; p < 0.001; effect size = 0.91 [almost perfect]). The results may assist strength and conditioning coaches in decision-making, as the normative table and jump performance comparison can provide valuable information for evaluations, training, fatigue monitoring, and neuromuscular recovery and serve as a reference for U-15 players.
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