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Tytuł pozycji:

Effects of conditioning hops on drop jump and sprint performance: a randomized crossover pilot study in elite athletes.

Tytuł:
Effects of conditioning hops on drop jump and sprint performance: a randomized crossover pilot study in elite athletes.
Autorzy:
Kümmel J; Sensorimotor Performance Lab, Department of Sport Science, University of Konstanz, 78476 Konstanz, Germany.
Bergmann J; Sensorimotor Performance Lab, Department of Sport Science, University of Konstanz, 78476 Konstanz, Germany.
Prieske O; Division of Training and Movement Sciences, Faculty of Human Sciences, University of Potsdam, 14469 Potsdam, Germany.
Kramer A; Sensorimotor Performance Lab, Department of Sport Science, University of Konstanz, 78476 Konstanz, Germany.
Granacher U; Division of Training and Movement Sciences, Faculty of Human Sciences, University of Potsdam, 14469 Potsdam, Germany.
Gruber M; Sensorimotor Performance Lab, Department of Sport Science, University of Konstanz, 78476 Konstanz, Germany.
Źródło:
BMC sports science, medicine & rehabilitation [BMC Sports Sci Med Rehabil] 2016 Jan 30; Vol. 8, pp. 1. Date of Electronic Publication: 2016 Jan 30 (Print Publication: 2016).
Typ publikacji:
Journal Article
Język:
English
Imprint Name(s):
Original Publication: [London] : BioMed Central, [2013]-
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Contributed Indexing:
Keywords: Performance gains; Plyometric exercise; Post-activation potentiation; Reactive movement
Entry Date(s):
Date Created: 20160203 Date Completed: 20160202 Latest Revision: 20200930
Update Code:
20220902
PubMed Central ID:
PMC4734887
DOI:
10.1186/s13102-016-0027-z
PMID:
26835128
Czasopismo naukowe
Background: It has previously been shown that conditioning activities consisting of repetitive hops have the potential to induce better drop jump (DJ) performance in recreationally active individuals. In the present pilot study, we investigated whether repetitive conditioning hops can also increase reactive jump and sprint performance in sprint-trained elite athletes competing at an international level.
Methods: Jump and sprint performances of 5 athletes were randomly assessed under 2 conditions. The control condition (CON) comprised 8 DJs and 4 trials of 30-m sprints. The intervention condition (HOP) consisted of 10 maximal repetitive two-legged hops that were conducted 10 s prior to each single DJ and sprint trial. DJ performance was analyzed using a one-dimensional ground reaction force plate. Step length (SL), contact time (CT), and sprint time (ST) during the 30-m sprints were recorded using an opto-electronic measurement system.
Results: Following the conditioning activity, DJ height and external DJ peak power were both significantly increased by 11 % compared to the control condition. All other variables did not show any significant differences between HOP and CON.
Conclusions: In the present pilot study, we were able to demonstrate large improvements in DJ performance even in sprint-trained elite athletes following a conditioning activity consisting of maximal two-legged repetitive hops. This strengthens the hypothesis that plyometric conditioning exercises can induce performance enhancements in elite athletes that are even greater than those observed in recreationally active athletes.. In addition, it appears that the transfer of these effects to other stretch-shortening cycle activities is limited, as we did not observe any changes in sprint performance following the plyometric conditioning activity.

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