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Christie Tangalos, Samuel J. Robertson, Michael Spittle and Paul B. Gastin

Context:

Player match statistics in junior Australian football (AF) are not well documented, and contributors to success are poorly understood. A clearer understanding of the relationships between fitness and skill in younger players participating at the foundation level of the performance pathway in AF has implications for the development of coaching priorities (eg, physical or technical).

Purpose:

To investigate the relationships between indices of fitness (speed, power, and endurance) and skill (coach rating) on player performance (disposals and effective disposals) in junior AF.

Methods:

Junior male AF players (N = 156, 10–15 y old) were recruited from 12 teams of a single amateur recreational AF club located in metropolitan Victoria. All players were tested for fitness (20-m sprint, vertical jump, 20-m shuttle run) and rated by their coach on a 6-point Likert scale for skill (within a team in comparison with their teammates). Player performance was assessed during a single match in which disposals and their effectiveness were coded from a video recording.

Results:

Coach rating of skill displayed the strongest correlations and, combined with 20-m shuttle test, showed a good ability to predict the number of both disposals and effective disposals. None of the skill or fitness attributes adequately explained the percentage of effective disposals. The influence of team did not meaningfully contribute to the performance of any of the models.

Conclusions:

Skill development should be considered a high priority by coaches in junior AF.

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Raúl Reina, Aitor Iturricastillo, Rafael Sabido, Maria Campayo-Piernas and Javier Yanci

the form of vertical jumping (VJ) has been deemed to be important for optimal performance in football and is considered in testing for fitness variation and talent selection. 2 However, because many activities in football (ie, acceleration capacity and change of direction ability) require a high

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Martina A. Maggioni, Matteo Bonato, Alexander Stahn, Antonio La Torre, Luca Agnello, Gianluca Vernillo, Carlo Castagna and Giampiero Merati

2 max (% V ˙ O 2 max ). Blood lactate concentration (BLC) (Lactate Pro LT-1710; Arkray Factory Inc, Shiga, Japan) was obtained by small earlobe sampling 2 minutes after exhaustion. Vertical-Jump Assessment Series of 3 SJs and 3 CMJs were performed on a force platform (model Quattro Jump; Kistler

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Olfa Turki, Wissem Dhahbi, Sabri Gueid, Sami Hmaied, Marouen Souaifi and Riadh Khalifa

. Furthermore, in 8 professional British badminton athletes, a loaded warm-up was shown to positively affect COD speed but not vertical jump performance. 14 Authors observed enhanced COD speeds when using vests loaded at 5% and 10% BM, compared with an unloaded condition. 14 Specifically, the investigators 14

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Mehrez Hammami, Nawel Gaamouri, Gaith Aloui, Roy J. Shephard and Mohamed Souhaiel Chelly

30 m by 5 paired single beam photocells (Microgate, Bolzano, Italy). Three trials were separated by 6 to 8 minutes of recovery, with the best result for 30-m distance and the corresponding 5, 10, and 20 m being recorded as experimental trials. Vertical Jump After a 15-minute warm-up, flight times

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Oliver Gonzalo-Skok, Alejandro Moreno-Azze, José Luis Arjol-Serrano, Julio Tous-Fajardo and Chris Bishop

current study was to compare the effects of performing different unilateral strength training interventions on unilateral horizontal, triple unilateral horizontal, bilateral and unilateral vertical jumping, and their related asymmetries in young soccer players. Methods Subjects Forty-five male young (U-17

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João Ribeiro, Luís Teixeira, Rui Lemos, Anderson S. Teixeira, Vitor Moreira, Pedro Silva and Fábio Y. Nakamura

a growing interest in developing training programs that specifically enhance performance during these powerful activities. Several strength–power training strategies result in significant soccer-specific physical performance changes, typically assessed by vertical jump, straight-line sprint, and

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Peter A. van de Hoef, Jur J. Brauers, Maarten van Smeden, Frank J.G. Backx and Michel S. Brink

-oriented jump exercises instead of only vertical jump exercises. A combination of vertical plus horizontal jump exercises seems to be more effective than solely vertical jump exercises in improving jump height. 19 Sprint Speed Sprint tests over 5 distances were assessed. Plyometric training significantly

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* Emidio Pacecca * Jye Tebble * Joel Hocking * Thomas Kempton * Aaron J. Coutts * 1 04 2020 14 10 2019 15 4 457 463 10.1123/ijspp.2019-0060 ijspp.2019-0060 The Effects of Cluster-Set and Traditional-Set Postactivation Potentiation Protocols on Vertical Jump Performance Antonio Dello Iacono

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of Handball Players During the World Championships in Qatar 2015 Marco Cardinale * Rodney Whiteley * Ahmed Abdelrahman Hosny * Nebojsa Popovic * 8 2017 12 7 908 915 10.1123/ijspp.2016-0314 A Comparison of Isometric Midthigh-Pull Strength, Vertical Jump, Sprint Speed, and Change