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Blake D. McLean, Donald Strack, Jennifer Russell and Aaron J. Coutts

indoor tracking technologies (eg, local positioning systems [LPSs]), compared with outdoor sports that have utilized GPS technology. Developments in indoor LPSs, including technologies such as radio frequency identification (RFID) and optical camera tracking, are now used throughout the NBA. These LPS

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Gareth N. Sandford, Sian V. Allen, Andrew E. Kilding, Angus Ross and Paul B. Laursen

(endurance types; Table  1 ). Finally, we present the SRR construct (Figure  2 ) as a practical and easily implemented tool to support a coach’s identification of the 800-m athlete subgroup, which may aid training approaches and event specialization. Figure 2 —Speed reserve ratio (maximum sprint speed [km

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Ida A. Heikura, Louise M. Burke, Dan Bergland, Arja L.T. Uusitalo, Antti A. Mero and Trent Stellingwerff

January 31,2016. 23. Melin A , Tornberg AB , Skouby S , et al . The LEAF questionnaire: a screening tool for the identification of female athletes at risk for the female athlete triad . Br J Sports Med . 2014 ; 48 ( 7 ): 540 – 545 . PubMed ID: 24563388 doi:10.1136/bjsports-2013

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Joel Garrett, Stuart R. Graham, Roger G. Eston, Darren J. Burgess, Lachlan J. Garrett, John Jakeman and Kevin Norton

, Cormack SJ . Identification of sensitive measures of recovery following external load from football match play . Int J Sports Physiol Perform . 2017 ; 12 ( 7 ): 969 – 976 . doi:10.1123/ijspp.2016-0522 10.1123/ijspp.2016-0522 23. Dalleau G , Belli A , Bourdin M , Lacour J-R . The spring

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Robyn F. Madden, Kelly A. Erdman, Jane Shearer, Lawrence L. Spriet, Reed Ferber, Ash T. Kolstad, Jessica L. Bigg, Alexander S.D. Gamble and Lauren C. Benson

calculated. Figure 1 —The identification of shifts was achieved by determining the root-mean-square upper envelope of the raw accelerometer data. The mean plus a quarter of the SD of the envelope signal over all playing periods was used to determine a cutoff value for the beginning and the end of the shifts

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Sean H. Kerr, Tiffanye M. Vargas, Mimi Nakajima and Jim Becker

Warner coaches signed an informed consent document to participate in the study, they were given a demographic questionnaire and the RoCKAS questionnaire. Responses were kept completely confidential and no personal identification was utilized in the research. The questionnaire took 30 min to complete. The

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Benjamin M. Jackson, Ted Polglaze, Brian Dawson, Trish King and Peter Peeling

10-second pause at the marker cone to allow for clear lap identification, while a short break between sets allowed the units to be exchanged. Figure 2 —Modified simulated game circuit. 17 Match data for part 2 were collected from athletes during 6 games of the Australian Hockey League competition

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Adam J. Zemski, Shelley E. Keating, Elizabeth M. Broad, Damian J. Marsh, Karen Hind and Gary J. Slater

 al., 2015 ), can facilitate the identification of true changes and thus influence interpretation of results. This would then enable practitioners to further personalize dietary and/or training interventions in the pursuit of improved performance outcomes. There are a number of considerations to make when

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Sebastian Altfeld, Paul Schaffran, Jens Kleinert and Michael Kellmann

). Unfortunately, the identification of sufficient recovery periods due to the time constraints and the wide range of coaches’ work tasks represents a delicate issue ( Grehl & Lange, 2011 ; Thiel et al., 2010 ). With regard to social obligations, coaches work nontraditional and irregular working hours (e

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Pedro L. Valenzuela, Guillermo Sánchez-Martínez, Elaia Torrontegi, Javier Vázquez-Carrión, Manuela González, Zigor Montalvo and Grégoire P. Millet

have conditioned these findings, and it is possible to hypothesize that different results might have been observed in other populations (eg, untrained individuals). Moreover, it must be noted that the HRV analysis performed allows the identification of a “global state of fatigue,” but it does not allow