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Very-Heavy Sled Training for Improving Horizontal-Force Output in Soccer Players.

Abstract：

BACKGROUND:Sprint running acceleration is a key feature of physical performance in team sports, and recent literature shows that the ability to generate large magnitudes of horizontal ground-reaction force and mechanical effectiveness of force application are paramount. The authors tested the hypothesis that very-heavy loaded sled sprint training would induce an improvement in horizontal-force production, via an increased effectiveness of application. METHODS:Training-induced changes in sprint performance and mechanical outputs were computed using a field method based on velocity-time data, before and after an 8-wk protocol (16 sessions of 10- × 20-m sprints). Sixteen male amateur soccer players were assigned to either a very-heavy sled (80% body mass sled load) or a control group (unresisted sprints). RESULTS:The main outcome of this pilot study is that very-heavy sled-resisted sprint training, using much greater loads than traditionally recommended, clearly increased maximal horizontal-force production compared with standard unloaded sprint training (effect size of 0.80 vs 0.20 for controls, unclear between-groups difference) and mechanical effectiveness (ie, more horizontally applied force; effect size of 0.95 vs -0.11, moderate between-groups difference). In addition, 5-m and 20-m sprint performance improvements were moderate and small for the very-heavy sled group and small and trivial for the control group, respectively. Practical Applications: This brief report highlights the usefulness of very-heavy sled (80% body mass) training, which may suggest value for practical improvement of mechanical effectiveness and maximal horizontal-force capabilities in soccer players and other team-sport athletes. RESULTS:This study may encourage further research to confirm the usefulness of very-heavy sled in this context.

journal_name

Int J Sports Physiol Perform

journal_title

International journal of sports physiology and performance

authors

Morin JB,Petrakos G,Jiménez-Reyes P,Brown SR,Samozino P,Cross MR

doi

10.1123/ijspp.2016-0444

subject

Has Abstract

pub_date

2017-07-01 00:00:00

pages

840-844

issue

eissn

1555-0265

issn

1555-0273

journal_volume

pub_type

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Very-Heavy Sled Training for Improving Horizontal-Force Output in Soccer Players.