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Ignacio Perez-Pozuelo, Thomas White, Kate Westgate, Katrien Wijndaele, Nicholas J. Wareham and Soren Brage

to the description of orientation-related measures of human behavior using wrist-worn accelerometry, although they have been used in thigh-worn activity monitoring ( Steeves et al., 2015 ). Pitch and roll angles are examples of well-defined, biomechanically relevant, and easy-to-interpret signal

Open access

Martin Buchheit and Ben Michael Simpson

With the ongoing development of microtechnology, player tracking has become one of the most important components of load monitoring in team sports. The 3 main objectives of player tracking are better understanding of practice (provide an objective, a posteriori evaluation of external load and locomotor demands of any given session or match), optimization of training-load patterns at the team level, and decision making on individual players’ training programs to improve performance and prevent injuries (eg, top-up training vs unloading sequences, return to play progression). This paper discusses the basics of a simple tracking approach and the need to integrate multiple systems. The limitations of some of the most used variables in the field (including metabolic-power measures) are debated, and innovative and potentially new powerful variables are presented. The foundations of a successful player-monitoring system are probably laid on the pitch first, in the way practitioners collect their own tracking data, given the limitations of each variable, and how they report and use all this information, rather than in the technology and the variables per se. Overall, the decision to use any tracking technology or new variable should always be considered with a cost/benefit approach (ie, cost, ease of use, portability, manpower/ability to affect the training program).

Open access

Salman Nazary-Moghadam, Mahyar Salavati, Ali Esteki, Behnam Akhbari, Sohrab Keyhani and Afsaneh Zeinalzadeh

Stroop task. The auditory Stroop task consisted of a series of stimuli consisting of “high” or “low” words spoken in Persian presented with either high-pitched or low-pitched voice, resulting in 2 types of stimuli, that is, congruent stimuli where the word and the vocalization pitch matched and

Open access

Kellie C. Huxel Bliven and Kelsey J. Picha

impingement syndrome . J Sport Rehabil . 2019 ; 28 : XX . doi:10.1123/jsr.2017-0207 10.1123/jsr.2017-0207 3. Pexa BS , Ryan ED , Hibberd EE , Teel E , Rucinski TJ , Myers JB . Infraspinatus cross-sectional area and shoulder range of motion change following live-game baseball pitching . J

Open access

Yolanda Demetriou, Antje Hebestreit, Anne K. Reimers, Annegret Schlund, Claudia Niessner, Steffen Schmidt, Jonas David Finger, Michael Mutz, Klaus Völker, Lutz Vogt, Alexander Woll and Jens Bucksch

daily PA, such as bicycle lanes, inner-city roads with 30 km/h speed limit, public playgrounds, parks and soccer pitches. The majority (75%) of parents state that their children can play outside without supervision. 8 Government INC Many interventions exist and have been implemented to promote PA in

Open access

Jules Boykoff

scholar Alan Tomlinson and I co-authored an op-ed for the New York Times in the month before the London 2012 Olympics kicked off titled “Olympian Arrogance.” I was developing a stronger sense of how to pitch articles to media outlets, in terms of timing, tone, and substance. From August through December

Full access

Jesús Seco-Calvo, Juan Mielgo-Ayuso, César Calvo-Lobo and Alfredo Córdova

actions). Total time: 90 min.  Wednesday Match (total duration time of 40 min).  Thursday Tactical games in half pitch. Game in half pitch (5 vs 5 for a total of 30 min). Total time: 90 min.  Friday Speed training. Moderate to high aerobic tactical games (20–30 min). Total time: 90 min.  Saturday Reaction

Open access

James A. Ashton-Miller and Ronald F. Zernicke

. If corroborated by others, its significance is that coaches, trainers, and athletes will know that the ACL has a material fatigue limit in terms of how many high-loading cycles it can withstand before failure. This is like the Little League Pitch Count in baseball that is used to protect young

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Ian McGinnis, Justin Cobb, Ryan Tierney and Anne Russ

objects, juggling, n/a Head movement direction Still, yaw, pitch, roll, n/a Whole-body movement direction Anterior-posterior, medial-lateral, multi-directional Visual input Eyes closed, eyes open, complex patterns, n/a Cognitive dual task Yes, no Special circumstances Specific parameters for exercises (e

Free access

Nicole Cascia, Tim L. Uhl and Carolyn M. Hettrich

authors. References 1. Erickson B , Gupta A , Harris J , et al . Rate of return to pitching and performance after Tommy John surgery in Major League Baseball pitchers . Am J Sports Med . 2014 ; 42 ( 3 ): 536 – 543 . PubMed ID: 24352622 doi:10.1177/0363546513510890 10