Quantifying the Gap Between Under 18 and Senior AFL Football: 2003 and 2009

2012 ◽  
Vol 7 (1) ◽  
pp. 53-58 ◽  
Author(s):  
Darren Burgess ◽  
Geraldine Naughton ◽  
Kevin Norton
Keyword(s):  
Global Positioning System ◽  
Evidence Base ◽  
Positioning System ◽  
Movement Rate ◽  
Ball Speed ◽  
Gps Technology ◽  
Australian Football League ◽  
Global Positioning ◽  
Australian Football ◽  
Over Time

Purpose:The understanding of the gap between Under 18 y (U18) and senior-level competition and the evolution of this gap in Australian Football lack a strong evidence base. Despite the multimillion dollars invested in recruitment, scientific research on successful transition is limited. No studies have compared individual players’ movement rate, game statistics and ball speed in U18 and senior competition of the Australian Football League across time. This project compared differences in player movement and ball speed between matches from senior AFL competitive matches and U18 players in the 2003 and 2009 seasons.Methods:TrakPerformance Software and Global Positioning System (GPS) technology were used to analyze the movement of players, ball speed and game statistics. ANOVA compared the two levels of competition over time.Results:Observed interactions for distance traveled per minute of play (P = .009), number of sprints per minute of play (P < .001), time spent at sprint speed in the game (P < .001), time on field (P < .001), and ball speed (P < .001) were found. Subsequent analysis identified increases in movement patterns in senior AFL competition in 2009 compared with the same level of competition in 2003 and U18 players in 2003 and 2009.Conclusions:Senior AFL players in 2009 were moving further, sprinting relatively more frequently, playing less time and playing at game speeds significantly greater than the same senior competition in 2003 as well as compared with both cohorts of U18 players.

scholarly journals Relationship Between Preseason Training Load and In-Season Availability in Elite Australian Football Players

2017 ◽  
Vol 12 (6) ◽  
pp. 749-755 ◽  
Author(s):  
Nick B. Murray ◽  
Tim J. Gabbett ◽  
Andrew D. Townshend
Keyword(s):  
Global Positioning System ◽  
Repeated Measures ◽  
Football Players ◽  
Injury Incidence ◽  
Gps Technology ◽  
Risk Of Injury ◽  
Australian Football League ◽  
Global Positioning ◽  
Australian Football ◽  
The Relationship

Objectives:To investigate the relationship between the proportion of preseason training sessions completed and load and injury during the ensuing Australian Football League season.Design:Single-cohort, observational study.Methods:Forty-six elite male Australian football players from 1 club participated. Players were divided into 3 equal groups based on the amount of preseason training completed (high [HTL], >85% sessions completed; medium [MTL], 50–85% sessions completed; and low [LTL], <50% sessions completed). Global positioning system (GPS) technology was used to record training and game loads, with all injuries recorded and classified by club medical staff. Differences between groups were analyzed using a 2-way (group × training/competition phase) repeated-measures ANOVA, along with magnitude-based inferences. Injury incidence was expressed as injuries per 1000 h.Results:The HTL and MTL groups completed a greater proportion of in-season training sessions (81.1% and 74.2%) and matches (76.7% and 76.1%) than the LTL (56.9% and 52.7%) group. Total distance and player load were significantly greater during the first half of the in-season period for the HTL (P = .03, ES = 0.88) and MTL (P = .02, ES = 0.93) groups than the LTL group. The relative risk of injury for the LTL group (26.8/1000 h) was 1.9 times greater than that for the HTL group (14.2/1000 h) (χ2 = 3.48, df = 2, P = .17).Conclusions:Completing a greater proportion of preseason training resulted in higher training loads and greater participation in training and competition during the competitive phase of the season.

scholarly journals Monitoring cattle behavior and pasture use with GPS and GIS

2000 ◽  
Vol 80 (3) ◽  
pp. 405-413 ◽  
Author(s):  
L.W. Turner ◽  
M.C. Udal ◽  
B. T. Larson ◽  
S.A. Shearer
Keyword(s):  
Information System ◽  
Geographic Information System ◽  
Global Positioning System ◽  
Precision Agriculture ◽  
Geographic Information ◽  
Spatial And Temporal Variability ◽  
Positioning System ◽  
Gps Technology ◽  
Global Positioning ◽  
Livestock Behavior

Precision agriculture is already being used commercially to improve variability management in row crop agriculture. In the same way, understanding how spatial and temporal variability of animal, forage, soil and landscape features affect grazing behavior and forage utilization provides potential to modify pasture management, improve efficiency of utilization, and maximize profits. Recent advances in global positioning system (GPS) technology have allowed the development of lightweight GPS collar receivers suitable for monitoring animal position at 5-min intervals. The GPS data can be imported into a geographic information system (GIS) to assess animal behavior characteristics and pasture utilization. This paper describes application and use of GPS technology on intensively managed beef cattle, and implications for livestock behavior and management research on pasture. Key words: Livestock behavior, electronics, grazing, forage, global positioning system, geographic information system

scholarly journals Design an attendance system using Global Positioning System (GPS) technology at PT. Cipta Anugrah Musi

2021 ◽  
Vol 2 (2) ◽  
pp. 104-124
Author(s):  
Muhammad Faisal
Keyword(s):  
Monitoring System ◽  
Global Positioning System ◽  
Black Box ◽  
Positioning System ◽  
Gps Technology ◽  
Global Positioning ◽  
Black Box Testing ◽  
Employee Attendance

The purpose of this research is to design an attendance system using Global Positioning System (GPS) technology, as a useful solution. At PT. Cipta Anugrah Musi for the marketing staff to still be able to do attendance without using a fingerprint attendance machine. Based on the results of research and discussion on the marketing employee attendance monitoring system in the form of this android mobile, the following conclusions can be drawn. From the black box testing that has been done, it can be concluded that the employee attendance monitoring system can run well and there are no problems. GPS technology can provide information on where to take employee photos so that it is easy to find out the position of the employee's absence at that time to avoid cheating in attendance.

A Pedestrian Navigation System Using Cellular Phone Video-Conferencing Functions

2012 ◽  
Vol 2012 ◽  
pp. 1-8
Author(s):  
Akihiko Sugiura ◽  
Takuya Shoji
Keyword(s):  
Global Positioning System ◽  
Video Conferencing ◽  
Cellular Phone ◽  
Positioning System ◽  
Cellular Phones ◽  
Gps Technology ◽  
Pedestrian Navigation ◽  
Global Positioning ◽  
Positional Precision ◽  
Subterranean Environment

A user’s position-specific field has been developed using the Global Positioning System (GPS) technology. To determine the position using cellular phones, a device was developed, in which a pedestrian navigation unit carries the GPS. However, GPS cannot specify a position in a subterranean environment or indoors, which is beyond the reach of transmitted signals. In addition, the position-specification precision of GPS, that is, its resolution, is on the order of several meters, which is deemed insufficient for pedestrians. In this study, we proposed and evaluated a technique for locating a user’s 3D position by setting up a marker in the navigation space detected in the image of a cellular phone. By experiment, we verified the effectiveness and accuracy of the proposed method. Additionally, we improved the positional precision because we measured the position distance using numerous markers.

scholarly journals Physical Demands of Top-Class Soccer Friendly Matches in Relation to a Playing Position Using Global Positioning System Technology

2015 ◽  
Vol 47 (1) ◽  
pp. 179-188 ◽  
Author(s):  
Javier Mallo ◽  
Esteban Mena ◽  
Fabio Nevado ◽  
Víctor Paredes
Keyword(s):  
Global Positioning System ◽  
High Intensity ◽  
Positioning System ◽  
Physical Demands ◽  
Gps Technology ◽  
Total Distance ◽  
Professional Soccer ◽  
Global Positioning ◽  
Rate Profile ◽  
Very High

AbstractThe aim of this study was to examine the physical demands imposed on professional soccer players during 11-a-side friendly matches in relation to their playing position, using global positioning system (GPS) technology. One hundred and eleven match performances of a Spanish “La Liga” team during the 2010-11 and 2011-12 pre-seasons were selected for analysis. The activities of the players were monitored using GPS technology with a sampling frequency of 1 Hz. Total distance covered, distance in different speed categories, accelerations, and heart rate responses were analyzed in relation to five different playing positions: central defenders (n=23), full-backs (n=20), central midfielders (n=22), wide midfielders (n=26), and forwards (n=20). Distance covered during a match averaged 10.8 km, with wide and central midfielders covering the greatest total distance. Specifically, wide midfielders covered the greatest distances by very high-intensity running (>19.8 km·h-1) and central midfielders by jogging and running (7.2-19.7 km·h-1). On the other hand, central defenders covered the least total distance and at high intensity, although carried out more (p<0.05-0.01) accelerations than forwards, wide midfielders, and fullbacks. The work rate profile of the players obtained with the GPS was very similar to that obtained with semi-automatic image technologies. However, when comparing results from this study with data available in the literature, important differences were detected in the amount of distance covered by sprinting, which suggests that caution should be taken when comparing data obtained with the GPS with other motion analysis systems, especially regarding high-intensity activities.

Cartesian Control for the Inertial Measurement Unit Calibration Platform

2000 ◽  
Author(s):  
John J. Hall ◽  
Robert L. Williams ◽  
Frank van Graas
Keyword(s):  
Global Positioning System ◽  
Inertial Measurement Unit ◽  
Vertical Motion ◽  
High Accuracy ◽  
Measurement Unit ◽  
Positioning System ◽  
Ohio University ◽  
Inertial Measurement ◽  
Gps Technology ◽  
Global Positioning

Abstract The Department of Mechanical Engineering and the Avionics Engineering Center at Ohio University are developing an electromechanical system for the calibration of an inertial measurement unit (IMU) using global positioning system (GPS) antennas. The GPS antennas and IMU are mounted to a common platform to be oriented in the angular roll, pitch, and yaw motions. Vertical motion is also included to test the systems in a vibrational manner. A four-dof system based on the parallel Carpal Wrist is under development for this task. High-accuracy positioning is not required from the platform since the GPS technology provides absolute positioning for the IMU calibration process.

Sign in / Sign up

Export Citation Format

Share Document