Effects of Drop Height on Jump Performance in Male and Female Elite Adolescent Handball Players
- Purpose: To examine the effects of drop height on drop-jump (DJ) performance and on associations between DJ and horizontal-jump/sprint performances in adolescent athletes. Methods: Male (n = 119, 2.5 [0.6] y post-peak-height velocity) and female (n = 120, 2.5 [0.5] y post-peak-height velocity) adolescent handball players (national level) performed DJs in randomized order using 3 drop heights (20, 35, and 50 cm). DJ performance (jump height, reactive strength index [RSI]) was analyzed using the Optojump Next system. In addition, correlations were computed between DJ height and RSI with standing-long-jump and 20-m linear-sprint performances. Results: Statistical analyses revealed medium-size main effects of drop height for DJ height and RSI (P <.001, 0.63 <= d <= 0.71). Post hoc tests indicated larger DJ heights from 20 to 35 and 35 to 50 cm (P <=.031, 0.33 <= d <= 0.71) and better RSI from 20- to 35-cm drop height (P <.001, d = 0.77). No significant difference was found for RSI between 35- and 50-cm drop height. Irrespective of dropPurpose: To examine the effects of drop height on drop-jump (DJ) performance and on associations between DJ and horizontal-jump/sprint performances in adolescent athletes. Methods: Male (n = 119, 2.5 [0.6] y post-peak-height velocity) and female (n = 120, 2.5 [0.5] y post-peak-height velocity) adolescent handball players (national level) performed DJs in randomized order using 3 drop heights (20, 35, and 50 cm). DJ performance (jump height, reactive strength index [RSI]) was analyzed using the Optojump Next system. In addition, correlations were computed between DJ height and RSI with standing-long-jump and 20-m linear-sprint performances. Results: Statistical analyses revealed medium-size main effects of drop height for DJ height and RSI (P <.001, 0.63 <= d <= 0.71). Post hoc tests indicated larger DJ heights from 20 to 35 and 35 to 50 cm (P <=.031, 0.33 <= d <= 0.71) and better RSI from 20- to 35-cm drop height (P <.001, d = 0.77). No significant difference was found for RSI between 35- and 50-cm drop height. Irrespective of drop height, associations of DJ height and RSI were small with 5-m-split time (-.27 <= r <=.05), medium with 10-m-split time (-.44 <= r <=.14), and medium to large with 20-m sprint time and standing-long-jump distance (-.57 <= r <=.22). Conclusions: The present findings indicate that, irrespective of sex, 35-cm drop heights are best suited to induce rapid and powerful DJ performance (ie, RSI) during reactive strength training in elite adolescent handball players. Moreover, training-related gains in DJ performance may at least partly translate to gains in horizontal jump and longer sprint distances (ie, >= 20-m) and/or vice versa in male and female elite adolescent athletes, irrespective of drop height.…
Verfasserangaben: | Olaf PrieskeORCiDGND, Helmi ChaabeneORCiDGND, Christian PutaORCiDGND, David George BehmORCiDGND, Dirk BüschORCiDGND, Urs GranacherORCiDGND |
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DOI: | https://doi.org/10.1123/ijspp.2018-0482 |
ISSN: | 1555-0265 |
ISSN: | 1555-0273 |
Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/30427227 |
Titel des übergeordneten Werks (Englisch): | International journal of sports physiology and performance |
Verlag: | Human Kinetics Publ. |
Verlagsort: | Champaign |
Publikationstyp: | Wissenschaftlicher Artikel |
Sprache: | Englisch |
Datum der Erstveröffentlichung: | 21.04.2019 |
Erscheinungsjahr: | 2019 |
Datum der Freischaltung: | 25.02.2021 |
Freies Schlagwort / Tag: | plyometric training; strength training; stretch-shortening cycle; tendon stiffness; young athletes |
Band: | 14 |
Ausgabe: | 5 |
Seitenanzahl: | 7 |
Erste Seite: | 674 |
Letzte Seite: | 680 |
Fördernde Institution: | German Federal Institute of Sport Science [ZMVI1-081901 14-18]; German Handball Federation (Deutscher Handballbund, Dortmund) |
Organisationseinheiten: | Humanwissenschaftliche Fakultät / Strukturbereich Kognitionswissenschaften / Department Sport- und Gesundheitswissenschaften |
DDC-Klassifikation: | 7 Künste und Unterhaltung / 79 Sport, Spiele, Unterhaltung / 796 Sportarten, Sportspiele |
Peer Review: | Referiert |