Comparing Global Positioning System and Global Navigation Satellite System Measures of Team-Sport Movements

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

doi:10.1123/ijspp.2017-0529

Cited by 37 publications

(34 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The GPS is a navigational system comprising 27 orbiting satellites equipped with atomic clocks, allowing the quantification of movement variables from athletes via the calculation of instantaneous speed [ 11 ]. Recent developments in microtechnology devices have also enabled the use of the Global Navigation Satellite System (GNSS) [ 12 ]. The GNSS provides geospatial positioning with global coverage, encompassing both the GPS and GLONASS (Global Navigation Satellite System) [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

“…Recent developments in microtechnology devices have also enabled the use of the Global Navigation Satellite System (GNSS) [ 12 ]. The GNSS provides geospatial positioning with global coverage, encompassing both the GPS and GLONASS (Global Navigation Satellite System) [ 12 ]. Global positioning system-derived variables include basic components of locomotion, including total and relative distance travelled in different speed zones, maximum velocity and accelerations.…”

Section: Introductionmentioning

confidence: 99%

“…Despite the good to moderate intra-unit reliability of 10-Hz devices in reporting short distances covered at high velocities, the inter-unit reliability for high-speed and very high-speed running is still limited [ 20 ]. Initial research into the GNSS-enabled devices suggests small improvements in interunit reliability when measuring total distance, peak and average speed; however, they are yet to be compared against a criterion measure [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The Use of Microtechnology to Quantify the Peak Match Demands of the Football Codes: A Systematic Review

et al. 2018

View full text Add to dashboard Cite

BackgroundQuantifying the peak match demands within the football codes is useful for the appropriate prescription of external training load. Wearable microtechnology devices can be used to identify the peak match demands, although various methodologies exist at present.ObjectivesThis systematic review aimed to identify the methodologies and microtechnology-derived variables used to determine the peak match demands, and to summarise current data on the peak match demands in the football codes.MethodsA systematic search of electronic databases was performed from earliest record to May 2018; keywords relating to microtechnology, peak match demands and football codes were used.ResultsTwenty-seven studies met the eligibility criteria. Six football codes were reported: rugby league (n = 7), rugby union (n = 5), rugby sevens (n = 4), soccer (n = 6), Australian Football (n = 2) and Gaelic Football (n = 3). Three methodologies were identified: moving averages, segmental and ‘ball in play’. The moving averages is the most commonly used (63%) and superior method, identifying higher peak demands than other methods. The most commonly used variables were relative distance covered (63%) and external load in specified speed zones (57%).ConclusionThis systematic review has identified moving averages to be the most appropriate method for identifying the peak match demands in the football codes. Practitioners and researchers should choose the most relevant duration-specific period and microtechnology-derived variable for their specific needs. The code specific peak match demands revealed can be used for the prescription of conditioning drills and training intensity.Electronic supplementary materialThe online version of this article (10.1007/s40279-018-0965-6) contains supplementary material, which is available to authorized users.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Use of Microtechnology to Quantify the Peak Match Demands of the Football Codes: A Systematic Review

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Importantly, each of the devices evaluated here has been independently assessed to some extent for reliability and/or accuracy of displacement measures. Catapult S5 devices demonstrated excellent inter-unit reliability for distance, speed and acceleration in simulated team-sport activity (Jackson et al, 2018). GPExe Pro 1 devices were shown to be reliable and accurate for measures of total distance over a simulation circuit (Hoppe, Baumgart, Polglaze, & Freiwald, 2018), although accuracy was diminished in sections involving higher speeds or changes in direction.…”

Section: Discussionmentioning

confidence: 99%

“…One unit of each device was placed in separate pockets of a customised harness, each 10 cm apart in a line across the participants' upper back to optimise GPS signal quality and minimise interference and antenna obstruction between devices. Manufacturers advise that interference is unlikely with this configuration (Jackson, Polglaze, Dawson, King, & Peeling, 2018). To minimise bias, GPS devices were randomly re-allocated to different pockets at the beginning of each drill.…”

Section: Global Positioning System (Gps) Devicesmentioning

confidence: 99%

A comparison of displacement and energetic variables between three team sport GPS devices

Terziotti

Sim

Polglaze

2018

International Journal of Performance Analysis in Sport

Self Cite

View full text Add to dashboard Cite

This study compared the outputs of three different commercially-available GPS player-tracking devices for a range of commonly used displacement and energetic variables in activities replicating team sport movements. Professional male soccer players (n=7), simultaneously wore three GPS devices (Catapult OptimEye S5, GPExe Pro 1, StatSport ViperPod) whilst completing 4 separate drills, comprising progressively more complex changes in speed and direction. Displacement (distance, speed) and energetic (energy cost, metabolic power, energy expenditure) variables were compared for each device. All three devices tended to underestimate distance compared to the known value for each drill, with only minor and inconsistent differences between devices. There were no differences between devices for average speed. For energetic variables, substantial differences were found between each device, and these differences magnified as movement tasks became more erratic. Given that energetic variables are derived from measures of instantaneous speed, and also incorporate the magnitude and direction of change between successive data points, these differences may be attributable to disparities in raw data quality, filtering techniques and calculation methods. In order to provide comparable estimates of energetic variables in team sports, player-tracking devices must be capable of accurately recording instantaneous velocity in activities comprising frequent changes in speed and direction.

show abstract

Non-invasive Monitoring of Glycogen in Real-Time Using an Electromagnetic Sensor

Greene

Abdullah

Cullen

et al. 2018

Smart Sensors, Measurement and Instrumentation

View full text Add to dashboard Cite

Comparing Global Positioning System and Global Navigation Satellite System Measures of Team-Sport Movements

Abstract: These findings suggest that GNSS devices may be more sensitive than GPS devices in quantifying the physical demands of team-sport movements, but further study into the accuracy of GNSS devices is required.

Cited by 37 publications

References 21 publications

The Use of Microtechnology to Quantify the Peak Match Demands of the Football Codes: A Systematic Review

The Use of Microtechnology to Quantify the Peak Match Demands of the Football Codes: A Systematic Review

A comparison of displacement and energetic variables between three team sport GPS devices

Non-invasive Monitoring of Glycogen in Real-Time Using an Electromagnetic Sensor

Contact Info

Product

Resources

About