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Optimal Drop Heights for Determining Reactive Strength Performance in Youth-Is 1 Drop Height Sufficient to Generate Trustworthy Conclusions for Training Practice?
Keiner, Michael; Möck, Sebastian; Hartmann, Hagen; Wirth, Klaus.
Afiliação
  • Keiner M; DHGS German University of Health and Sport, Ismaning,Germany.
  • Möck S; Olympic Training and Testing Center of Hessen, Frankfurt,Germany.
  • Hartmann H; DHGS German University of Health and Sport, Ismaning,Germany.
  • Wirth K; University of Applied Sciences Wiener Neustadt, Wiener Neustadt,Austria.
Pediatr Exerc Sci ; : 1-7, 2024 Aug 07.
Article em En | MEDLINE | ID: mdl-39117310
ABSTRACT
This study critically examines the suitability of using a single drop height to assess the reaction strength index in trained and active participants, a key component of athletic performance. Using a cross-sectional design, 377 trained (n = 163) and active (n = 214) participants aged 14-18 years performing drop jumps from 4 different heights (24, 32, 40, and 48 cm) were studied. The primary aim was to explore the individual differences in reaction strength index at these heights and to assess whether a single height can reliably represent stretch-shortening cycle capabilities. While the repeated measures analysis of variance did not reveal any significant differences, the Bland-Altmann analysis revealed significant individual discrepancies between the performance of the drop heights, resulting in a mean absolute error of 32.1 and a mean absolute percentage error of 20.6%. These results strongly suggest that a single drop height is not sufficient to determine performance in the stretch-shortening cycle. This has important practical implications as it can lead to underestimates of performance trends. The study advocates the inclusion of a range of drop heights in routine testing to accurately measure reactive power and thus improve the effectiveness of individualized training programs for young athletes/active youth.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Pediatr Exerc Sci Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Alemanha

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Pediatr Exerc Sci Ano de publicação: 2024 Tipo de documento: Article País de afiliação: Alemanha