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Gps sport

James J Malone, Ric Lovell, Matthew C Varley, Aaron J Coutts
Athlete tracking devices that include global positioning system (GPS) and micro electrical mechanical system (MEMS) components are now commonplace in sport research and practice. These devices provide large amounts of data that are used to inform decision-making on athlete training and performance. However, the data obtained from these devices are often provided without clear explanation of how these metrics are obtained. At present, there is no clear consensus regarding how these data should be handled and reported in a sport context...
October 13, 2016: International Journal of Sports Physiology and Performance
Jason C Tee, Mike I Lambert, Yoga Coopoo
PURPOSE: In team sports, fatigue is manifested by a self-regulated decrease in movement distance and intensity. There is currently limited information on the effect of fatigue on movement patterns in rugby union match play, particularly for players in different position groups (backs vs. forwards). This study investigated the effect of different match periods on movement patterns of professional rugby union players. METHODS: Global positioning system (GPS) data were collected from 46 professional match participations to determine temporal effects on movement patterns...
September 6, 2016: International Journal of Sports Physiology and Performance
Carlos Puente, Javier Abián-Vicén, Francisco Areces, Roberto López, Juan Del Coso
The aim of this investigation was to analyze the physical and physiological demands of experienced basketball players during a real and competitive game. Twenty-five well-trained basketball players (8 guards, 8 forwards, 9 centers) played a competitive game on an outdoor court. Instantaneous running speeds, the number of body-impacts above 5-g as well as the number of accelerations and decelerations were assessed by means of a 15 Hz GPS accelerometer unit. Individual heart rate was also recorded using heart rate monitors...
July 26, 2016: Journal of Strength and Conditioning Research
Jonathan D Bartlett, Fergus O'Connor, Nathan Pitchford, Lorena Torres-Ronda, Samuel J Robertson
PURPOSE: The aim of this study was to quantify and predict relationships between RPE and GPS training load variables in professional Australian Football (AF) players using group and individualised modelling approaches. METHODS: Training load data (GPS and RPE) for 41 professional AF players was obtained over a period of 27 weeks. A total of 2711 training observations were analysed with a total of 66 ±13 sessions per player (range; 39 to 89). Separate generalised estimating equations (GEE) and artificial neural network analyses (ANN) were conducted to determine the ability to predict RPE from training load variables (i...
May 18, 2016: International Journal of Sports Physiology and Performance
Shane Malone, Barry Solan, Kieran Collins
The current study examined (1) the match running performance of Gaelic football and (2) the decrement in match running performance with respect of position. GPS technologies (4-Hz, VX Sport, Lower Hutt, New Zealand) were used with three elite inter-county teams across three full seasons with 250 full game data sets collected. Game movements were classified according to game actions and distance covered across speed zone thresholds (total distance [TD], high speed running distance [HSRD; ≥17 km.h], sprint distance [SD; ≥22 km·h]; accelerations [n]; peak speed [km·h])...
May 14, 2016: Journal of Strength and Conditioning Research
Wietze E Eizenga, Geert H Blom, Tjerk Wiersma
The 2001 NHG practice guideline on 'Refraction disorders' was revised for the second time in October 2015. The title has been changed to 'Visual symptoms', since besides refraction disorders other conditions such as glaucoma, macular degeneration, cataract and acute eye symptoms are also covered. The ophthalmologist is the specialist to whom GPs refer patients most often. Apart from the GP, ophthalmologist and youth health care physician, various other allied health professions are involved in eye healthcare...
2016: Nederlands Tijdschrift Voor Geneeskunde
Oliver R L Farley, Chris R Abbiss, Jeremy M Sheppard
Despite the increased professionalism and substantial growth of surfing worldwide, there is limited information available to practitioners and coaches in terms of key performance analytics that are common in other field based sports. Indeed, research analyzing surfing performance is limited to a few studies examining male surfers' heart rates, surfing activities through time-motion analysis (TMA) using video recordings and Global Positioning Satellite (GPS) data during competition and recreational surfing. These studies have indicated that specific activities undertaken during surfing are unique with a variety of activities (i...
April 2, 2016: Journal of Strength and Conditioning Research
Pedro Silva, Luís Vilar, Keith Davids, Duarte Araújo, Júlio Garganta
Small-sided and conditioned games (SSCGs) in sport have been modelled as complex adaptive systems. Research has shown that the relative space per player (RSP) formulated in SSCGs can impact on emergent tactical behaviours. In this study we adopted a systems orientation to analyse how different RSP values, obtained through manipulations of player numbers, influenced four measures of interpersonal coordination observed during performance in SSCGs. For this purpose we calculated positional data (GPS 15 Hz) from ten U-15 football players performing in three SSCGs varying in player numbers (3v3, 4v4 and 5v5)...
2016: SpringerPlus
Niels J Nedergaard, Mark A Robinson, Elena Eusterwiemann, Barry Drust, Paulo J Lisboa, Jos Vanrenterghem
PURPOSE: The aim of this study was to investigate the relationship between whole-body accelerations and body-worn accelerometry during team sports movements. METHODS: Twenty male team sport players performed forward running, and anticipated 45° and 90° side-cuts at approach speeds of 2, 3, 4 and 5 m·s-1. Whole-body Centre of Mass (CoM) accelerations were determined from ground reaction forces collected from one foot-ground-contact and segmental accelerations were measured from a commercial GPS/accelerometer unit on the upper trunk...
March 22, 2016: International Journal of Sports Physiology and Performance
Rahel Bürgi, Laura Tomatis, Kurt Murer, Eling D de Bruin
BACKGROUND: Neighbourhood socioeconomic status (SES) has been shown to be related to health status and overweight independent of individual SES. However, results about the association between neighbourhood SES and physical activity among children are ambiguous. Particularly, it is unknown how socioeconomic factors influence the spatial context of children's moderate-vigorous physical activity (MVPA) and sedentary behaviour (SB). This study aimed to investigate by means of Global Positioning System (GPS) and accelerometry whether locations where children engage in MVPA and SB differ by neighbourhood SES...
2016: BMC Public Health
Darcy M Brown, Dan B Dwyer, Samuel J Robertson, Paul B Gastin
The purpose of this study was to assess the validity of a GPS tracking system to estimate energy expenditure (EE) during exercise and field sport locomotor movements. Twenty-seven participants each completed one 90 minute exercise session on an outdoor synthetic futsal pitch. During the exercise session participants wore a 5 Hz GPS unit interpolated to 15 Hz (SPI HPU, GPSports Pty Ltd, Australia) and a portable gas analyser (Metamax® 3B, Cortex Pty Ltd, Germany) which acted as the criterion measure of EE. The exercise session was comprised of alternating five minute exercise bouts of randomised walking, jogging, running or a field sport circuit (x3) followed by 10 minutes of recovery...
March 21, 2016: International Journal of Sports Physiology and Performance
Marijke Jansen, Dick Ettema, Frank Pierik, Martin Dijst
Physical activity (PA) is influenced by the built environment. However, little is known about the types of built environment where adults spend their time, and at what levels of PA they engage in those environments. Understanding the effect of the built environment on PA requires insight into PA behavior at different types of locations (e.g., home, work, shopping centers, and sports facilities). Therefore, this study describes where adults aged 45-65 years were active with moderate-to-vigorous intensity (MVPA), and examines associations of socio-demographic factors and neighborhood with MVPA at these locations...
March 2016: International Journal of Environmental Research and Public Health
John T Nathanson, James G Connolly, Frank Yuk, Alex Gometz, Jonathan Rasouli, Mark Lovell, Tanvir Choudhri
BACKGROUND: In the United States alone, millions of athletes participate in sports with potential for head injury each year. Although poorly understood, possible long-term neurological consequences of repetitive sports-related concussions have received increased recognition and attention in recent years. A better understanding of the risk factors for concussion remains a public health priority. Despite the attention focused on mild traumatic brain injury (mTBI) in football, gaps remain in the understanding of the optimal methodology to determine concussion incidence and position-specific risk factors...
January 2016: Orthopaedic Journal of Sports Medicine
Ryan T Li, Scott R Kling, Michael J Salata, Sean A Cupp, Joseph Sheehan, James E Voos
CONTEXT: Wearable performance devices and sensors are becoming more readily available to the general population and athletic teams. Advances in technology have allowed individual endurance athletes, sports teams, and physicians to monitor functional movements, workloads, and biometric markers to maximize performance and minimize injury. Movement sensors include pedometers, accelerometers/gyroscopes, and global positioning satellite (GPS) devices. Physiologic sensors include heart rate monitors, sleep monitors, temperature sensors, and integrated sensors...
January 2016: Sports Health
Martin Buchheit, Andrew Gray, Jean-Benoit Morin
The aim of the present study was to examine the ability of a GPS-imbedded accelerometer to assess stride variables and vertical stiffness (K), which are directly related to neuromuscular fatigue during field-based high-intensity runs. The ability to detect stride imbalances was also examined. A team sport player performed a series of 30-s runs on an instrumented treadmill (6 runs at 10, 17 and 24 km·h(-1)) with or without his right ankle taped (aimed at creating a stride imbalance), while wearing on his back a commercially-available GPS unit with an embedded 100-Hz tri-axial accelerometer...
December 2015: Journal of Sports Science & Medicine
Thomas Haugen, Martin Buchheit
The aim of this review is to investigate methodological concerns associated with sprint performance monitoring, more specifically the influence and magnitude of varying external conditions, technology and monitoring methodologies not directly related to human physiology. The combination of different starting procedures and triggering devices can cause up to very large time differences, which may be many times greater than performance changes caused by years of conditioning. Wind, altitude, temperature, barometric pressure and humidity can all combine to yield moderate time differences over short sprints...
May 2016: Sports Medicine
Joost P Pluijms, Rouwen Cañal-Bruland, Marco J M Hoozemans, Morris W Van Beek, Kaj Böcker, Geert J P Savelsbergh
The aim of the current study was twofold: (1) to validate the use of action sport cameras for quantifying focus of visual attention in sailing and (2) to apply this method to examine whether an external focus of attention is associated with better performance in upwind sailing. To test the validity of this novel quantification method, we first calculated the agreement between gaze location measures and head orientation measures in 13 sailors sailing upwind during training regattas using a head mounted eye tracker...
August 2016: Journal of Sports Sciences
Peter Krustrup, Magni Mohr
The objective was to study game demands in competitive ultimate Frisbee by performing match analysis during a game. Thirteen moderately trained (Yo-Yo intermittent recovery test levels 1 and 2 [Yo-Yo IR1 and IR2] performance: 1790 ± 382 m and 657 ± 225 m, respectively) competitive male ultimate Frisbee athletes played a game in which activity profile using Global Positioning System (GPS) technology and heart rate (HR) were recorded. Game HRmean and HRpeak were 82 ± 2% and 99 ± 1% of maximum heart rate, respectively...
December 2015: Journal of Strength and Conditioning Research
Brett Ashley Gordon, Lyndell Bruce, Amanda Clare Benson
Monitoring physical activity is important to better individualise health and fitness benefits. This study assessed the concurrent validity of a smartphone global positioning system (GPS) 'app' and a sport-specific GPS device with a similar sampling rate, to measure physical activity components of speed and distance, compared to a higher sampling sport-specific GPS device. Thirty-eight (21 female, 17 male) participants, mean age of 24.68, s = 6.46 years, completed two 2.400 km trials around an all-weather athletics track wearing GPSports Pro™ (PRO), GPSports WiSpi™ (WISPI) and an iPhone™ with a Motion X GPS™ 'app' (MOTIONX)...
August 2016: European Journal of Sport Science
R J Johnston, M L Watsford, D Austin, M J Pine, R W Spurrs
This study aimed to determine the validity and reliability of global positioning system (GPS) units for measuring a standardized set of acceleration and deceleration zones and whether these standardized zones were capable of identifying differences between playing positions in professional Australian football. Eight well trained male participants were recruited to wear two 5 Hz or 10 Hz GPS units whilst completing a team sport simulation circuit to measure acceleration and deceleration movements. For the second part of this article 30 professional players were monitored between 1-29 times using 5 Hz and 10 Hz GPS units for the collection of acceleration and deceleration movements during the 2011 and 2012 Australian Football League seasons...
September 2015: Journal of Sports Medicine and Physical Fitness
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