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Kosuke Tamura, Jeffrey S. Wilson, Robin C. Puett, David B. Klenosky, William A. Harper and Philip J. Troped

accelerometers and global positioning system (GPS) units can be used to quantify PA occurring on trails and thereby provide a better understanding of how community trails can support regular PA. 23 , 24 To date, researchers have concurrently used these devices to objectively assess how much PA occurs at home

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Tim Op De Beéck, Arne Jaspers, Michel S. Brink, Wouter G.P. Frencken, Filip Staes, Jesse J. Davis and Werner F. Helsen

system with an integrated 10-Hz global positioning system and accelerometer technology (OptimEye S5; Catapult Sports, Melbourne, Australia). This system is considered a reliable tool for measuring EL that obtains an acceptable level of accuracy for quantifying various locomotor activities. 17 The

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Mitchell J. Henderson, Bryna C.R. Chrismas, Christopher J. Stevens, Aaron J. Coutts and Lee Taylor

-water immersion; G, game; GPS, global positioning systems; RPE, rating of perceived exertion; Tc, core temperature (ingestible telemetric pill); TC, thermal comfort; TS, thermal sensation; WU, warm-up. Statistical Analyses Statistical analyses were performed using the Statistical Package for the Social Sciences

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Mathieu Lacome, Ben Simpson, Nick Broad and Martin Buchheit

-based external load measures (ie, locomotor activity during small-sided games [SSG]) tracked with global positioning system (GPS) and an objective measure of internal load (ie, HR response to the same drills) in 10 elite soccer players. The second aim was to examine the ability of each individual model to

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Harry E. Routledge, Jill J. Leckey, Matt J. Lee, Andrew Garnham, Stuart Graham, Darren Burgess, Louise M. Burke, Robert M. Erskine, Graeme L. Close and James P. Morton

external loading during match play was assessed via global positioning system technology. Dietary Controls In the day prior to match play, each player consumed a prescribed CHO loading diet providing CHO, protein, and fat intakes corresponding to 8, 2, and 1 g/kg body mass, respectively, based on

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Liam Anderson, Graeme L. Close, Ryland Morgans, Catherine Hambly, John Roger Speakman, Barry Drust and James P. Morton

contractions etc) that are not often considered when using global positioning system (GPS) data to make inferences of daily EE. Methods Overview of the Player The player is a 27-year old male professional GK (body mass 85.6 kg, height 191 cm from a headless scan, percentage body fat 11.9%, fat mass 9.8 kg

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Lee Taylor, Christopher J. Stevens, Heidi R. Thornton, Nick Poulos and Bryna C.R. Chrismas

ecologically valid setting. The experimental aims were therefore to use a phase-change cooling vest within elite WRSS players during an externally valid match-day warm-up. Specifically, the performance (countermovement jump [CMJ]), physical (global positioning system [GPS] metrics), and psychophysiological

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Sergio Jiménez-Rubio, Archit Navandar, Jesús Rivilla-García, Víctor Paredes-Hernández and Miguel-Ángel Gómez-Ruano

. These parameters can be easily obtained from global positioning system (GPS) units attached to players. In particular, the recent and widely use of GPS devices monitors the player’s performance during training sessions and competitions, 17 recording various parameters. This information could help to

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Heita Goto and James A. King

) in elite professional soccer players; Global Positioning Systems are commonly used for data collection ( 14 , 15 ). Metabolic power is obtained by multiplying the estimated energy cost of accelerated/decelerated running on a level surface and running speed with the assumption that accelerated

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Javier Yanci, Daniel Castillo, Aitor Iturricastillo, Tomás Urbán and Raúl Reina

capacity. 4 – 7 However, only 2 scientific studies have been focused on analyzing official matches. 8 , 9 Boyd et al, 9 using global positioning system (GPS) monitors, analyzed the total distance (TD) covered, as well as the distance covered at high and very high intensity, in 40 high-level footballers