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Achraf Ammar, Stephen J. Bailey, Omar Hammouda, Khaled Trabelsi, Nabil Merzigui, Kais El Abed, Tarak Driss, Anita Hökelmann, Fatma Ayadi, Hamdi Chtourou, Adnen Gharbi and Mouna Turki

natural grass (NG) surfaces in official football tournaments. 5 Since this official approval, use of AT has increased exponentially for both training and competition. 6 – 8 Accordingly, an increasing number of research studies have been conducted to assess the influence of playing surface on various

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Jason Simmons, Nels Popp and Greg Greenhalgh

The outdoor athletic fields of Sunshine State University are in poor condition. Overuse, insufficient drainage, and a lack of human and financial resources have contributed to the fields’ deterioration. Sunshine State University’s director of athletics, Emily Rodriguez, has decided to replace the existing fields, but that decision is just the tip of the iceberg. Rodriguez now must decide on a natural or synthetic surface for the new fields. This decision is complex because cost, maintenance, durability, player safety, and player preference must all be considered. Both surfaces have their advantages and disadvantages. In the end, Rodriguez must decide which surface is right for Sunshine State University.

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Jorge López-Fernández, Javier Sánchez-Sánchez, Jorge García-Unanue, José Luis Felipe, Enrique Colino and Leonor Gallardo

In recent years, the third generation artificial turf (AT) systems have become an alternative to natural grass (NG) surfaces, mainly due to the standardization of AT systems under the aegis of international bodies such as the Fédération Internationale de Football Association (FIFA) and the European

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Enrique Colino, Jorge Garcia-Unanue, Leonor Gallardo, Carl Foster, Alejandro Lucia and Jose Luis Felipe

few reporting the SA and VD of running surfaces. When comparing natural grass, artificial turf, and asphalt, they reported that the cost of running on both natural grass and artificial turf was ∼5% higher than on asphalt. As SA and VD values for the 2 grass surfaces were similar and both significantly

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Adam Jones, Richard Page, Chris Brogden, Ben Langley and Matt Greig

artificial turf on the performance of soccer players and evaluating the risk factors compared to natural grass . Neurologic Res Therapy . 2017 ; 2 ( 2 ): 1 – 16 . doi: 10.14302/issn.2470-5020.jnrt-17-1487 6. Williams S , Hume PA , Kara S . A review of football injuries on third and fourth

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Adam Jones, Chris Brogden, Richard Page, Ben Langley and Matt Greig

Association Football? J Sci Med Sport . 2016 ; 19 ( 7 ): 547 – 552 . PubMed ID: 26209426 doi: 10.1016/j.jsams.2015.07.009 26209426 2. Andersson H , Ekblom B , Krustrup P . Elite football on artificial turf versus natural grass: movement patterns, technical standards, and player impressions . J

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Michael E. Hales and John D. Johnson II

( 2 ): 469 – 478 . PubMed ID: 11796653 doi:10.1152/japplphysiol.01164.2000 10.1152/japplphysiol.01164.2000 11796653 8. Sassi A , Stefanescu A , Menaspa P , Bosio A , Riggo M , Rampinini E . The cost of running on natural grass and artificial turf surfaces . J Strength Cond Res

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Yusuf Köklü, Utku Alemdaroğlu, Hamit Cihan and Del P. Wong

higher internal and external loads. 15 The SSGs were performed on artificial grass soccer pitches in this study. Previous studies have found similar energy expenditures and internal and external loads when playing soccer on artificial grass versus natural grass. 28 – 30 Table 1 Characteristics of Small

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Blake D. McLean, Cloe Cummins, Greta Conlan, Grant Duthie and Aaron J. Coutts

thereby increasing the nonrunning-based activity. All drills were completed on a natural grass rugby league field with players wearing playing footwear. Between each team sport activity, players rested for approximately 5 minutes (always >4 min) before beginning the next activity. • Running: players

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Pedro Gómez-Carmona, Ismael Fernández-Cuevas, Manuel Sillero-Quintana, Javier Arnaiz-Lastras and Archit Navandar

field conditions were similar and optimal for soccer training at all times: natural grass always cut at the same length (2 cm). During the first preseason, 53 training sessions were held (77 h of training in total), and 8 friendly matches were played (each lasting 90 min); during the second preseason