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Craig A. Staunton and Glenn Björklund

conclusions being made from research. As a result, we have developed this call to action to increase awareness regarding the current standard of methodological reporting in ice hockey-based game analysis research to allow for greater replication in future research and to increase the application of published

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Jônatas Augusto Cursiol, Tarine Botta de Arruda, Fábio Yuzo Nakamura, and Ricardo Augusto Barbieri

The purpose of this study was to investigate the effects of three simulated goalball games on neuromuscular, physiological, perceptual, and technical parameters. Ten male players underwent assessments before and immediately after each game. Heart rate was recorded at rest and during all games that were entirely filmed for further technical performance analysis. Exercise significantly decreased knee extensor muscles peak force and percentage of voluntary activation after the second and third games, indicating the presence of central fatigue. Heart rate responses remained predominantly in a range equivalent to moderate activity intensity in all games. In addition, perceptual parameters were associated with reduced frequency of throws and density of actions. These findings suggest significant implications for the management of physical training, game strategy during a competition, and fixture change from three to two games per day.

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Mathieu Lacome, Julien Piscione, Jean-Philippe Hager, and Christopher Carling


To investigate the patterns and performance of substitutions in 18 international 15-a-side men’s rugby union matches.


A semiautomatic computerized time–motion system compiled 750 performance observations for 375 players (422 forwards, 328 backs). Running and technical-performance measures included total distance run, high-intensity running (>18.0 km/h), number of individual ball possessions and passes, percentage of passes completed, and number of attempted and percentage of successful tackles.


A total of 184 substitutions (85.2%) were attributed to tactical and 32 (14.8%) to injury purposes respectively. The mean period for non-injury-purpose substitutions in backs (17.7%) occurred between 70 and 75 min, while forward substitutions peaked equally between 50–55 and 60–65 min (16.4%). Substitutes generally demonstrated improved running performance compared with both starter players who completed games and players whom they replaced (small differences, ES –0.2 to 0.5) in both forwards and backs over their entire time played. There was also a trend for better running performance in forward and back substitutes over their first 10 min of play compared with the final 10 min for replaced players (small to moderate differences, ES 0.3–0.6). Finally, running performance in both forward and back substitutes was generally lower (ES –0.1 to 0.3, unclear or small differences) over their entire 2nd-half time played compared with their first 10 min of play. The impact of substitutes on technical performance was generally considered unclear.


This information provides practitioners with practical data relating to the physical and technical contributions of substitutions that subsequently could enable optimization of their impact on match play.

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Simon J. MacLeod, Chris Hagan, Mikel Egaña, Jonny Davis, and David Drake

events were identified, coded (as tackle or carry), and timestamped using game analysis software (Sportscode, version 8.4.0; Sportstec, NSW, Australia). Two expert analysts independently reviewed the video footage to score the collision event outcome for attacking and defending players. The use of

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Irene S. McClay, John R. Robinson, Thomas P. Andriacchi, Edward C Frederick, Ted Gross, Philip Martin, Gordon Valiant, Keith R. Williams, and Peter R. Cavanagh

Basketball is a sport that involves multiple impacts with the ground through a variety of moves such as running Jumping, and cutting. Repetitive impacts have been associated with stress-related injuries in other sports such as running. The purpose of this investigation was to gain an understanding of the typical stresses the body experiences during common basketball moves. To this end, the ground reaction forces from 24 players from five professional basketball teams were studied. In addition, a game analysis was performed to determine the frequency of selected moves. These data indicated that certain common movements, such as jump landings and shuffling, resulted in absolute and relative forces much greater than many of those reported previously in studies of other sports. These movements were also identified in a companion paper as being associated with large angular excursions and velocities. Findings are discussed with respect to injury risks, and suggestions for future study are made.

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J.P. Barfield, Stephanie Williams, Madison R. Currie, and Xiuyan Guo

determinants must identify critical elements that should be assessed during classification to limit the effect of impairment on performance. A game analysis is a process-focused approach that is effective at identifying determinants in sport. This process of identifying essential performance elements

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Vitor Ciampolini, Martin Camiré, William das Neves Salles, Juarez Vieira do Nascimento, and Michel Milistetd

. Level 2 is a one-weekend certification course, 15-hr long, based on theory and practice to develop competencies such as self-assessment, game analysis, and organizing a 6-week plan for a rugby team. This course also requires coaches to take a few online courses before the actual classroom course and

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Adam Beard, John Ashby, Ryan Chambers, Franck Brocherie, and Grégoire P. Millet

sports—that require high repeated-sprint/power abilities in both lower and upper limbs. Acknowledgment The authors acknowledge the national team players who participated and the support staff for their help. References 1. Duthie G , Pyne D , Hooper S . Applied physiology and game analysis of

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Lynley Ingerson, Michael L. Naraine, Nola Agha, and Daniel J. Pedroza

, analysis, and commentary are all accessible through a user-friendly interface. This innovative tool customizes preferences for live action, information, reports, and pre- and post-game analysis in a single source, which enables greater sport consumption for existing NBC Sports fans. It also has the

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Ryan M. Chambers, Tim J. Gabbett, and Michael H. Cole

.1016/j.jsams.2012.08.005 22975233 10.1016/j.jsams.2012.08.005 6. Duthie G , Pyne D , Hooper S . Applied physiology and game analysis of rugby union . Sports Med . 2003 ; 33 ( 13 ): 973 – 991 . PubMed ID: 14606925 doi:10.2165/00007256-200333130-00003 14606925 10