scholarly journals Accuracy and Reliability of Local Positioning Systems for Measuring Sport Movement Patterns in Stadium-Scale: A Systematic Review

2020 ◽  
Vol 10 (17) ◽  
pp. 5994 ◽  
Author(s):  
Markel Rico-González ◽  
Asier Los Arcos ◽  
Filipe M. Clemente ◽  
Daniel Rojas-Valverde ◽  
José Pino-Ortega
Keyword(s):  
Systematic Review ◽  
Movement Patterns ◽  
Validity And Reliability ◽  
Qualitative Synthesis ◽  
High Definition ◽  
Positioning Systems ◽  
Search Terms ◽  
Global Positioning ◽  
Technology Intervention ◽  
Boolean Search

The use of valid, accurate and reliable systems is decisive for ensuring the data collection and correct interpretation of the values. Several studies have reviewed these aspects on the measurement of movement patterns by high-definition cameras (VID) and Global Positioning Systems (GPS) but not by Local Positioning Systems (LPS). Thus, the aim of the review was to summarize the evidence about the validity and reliability of LPS technology to measure movement patterns at human level in outdoor and indoor stadium-scale. The authors systematically searched three electronic databases (PubMed, Web of Science and SPORTDiscus) to extract studies published before 21 October 2019. A Boolean search phrase was created to include sport (population; 8 keywords), search terms relevant to intervention technology (intervention technology; 6 keywords) and measure outcomes of the technology (outcomes; 7 keywords). From the 62 articles found, 16 were included in the qualitative synthesis. This systematic review revealed that the tested LPS systems proved to be valid and accurate in determining the position and estimating distances and speeds, although they were not valid or their accuracy decreased when measuring instantaneous speed, peak accelerations or decelerations or monitoring particular conditions (e.g., changes of direction, turns). Considering the variability levels, the included studies showed that LPS provide a reliable way to measure distance variables and athletes’ average speed.

Comparison of the validity and reliability of local positioning systems against other tracking technologies in team sport: A systematic review

2021 ◽  
pp. 175433712098823
Author(s):  
José Pino-Ortega ◽  
José M Oliva-Lozano ◽  
Petrus Gantois ◽  
Fábio Yuzo Nakamura ◽  
Markel Rico-González
Keyword(s):  
Tracking System ◽  
Team Sports ◽  
Validity And Reliability ◽  
Positioning Systems ◽  
High Speeds ◽  
Search Terms ◽  
Load Monitoring ◽  
Technology Intervention ◽  
Electronic Performance ◽  
Boolean Search

Given the accuracy in data collection, radar-based local positioning systems (LPS) are a promising technology to monitor training load in team sports. The objective of this study was to systematically review articles that compare the validity and reliability of LPS to other electronic performance and tracking system (EPTS) in team sports. The authors searched three electronic databases (SPORTDiscus, PubMed, and Web of Science) to identify relevant studies published by October 21, 2019. A Boolean search was performed, including sport ( population), search terms related to intervention technology ( intervention technology), and outcome measures of the technology ( outcomes). Seven studies evaluated the validity and reliability of LPS in team sports in comparison with other EPTS, including semi-automatic video technology (VID) and Global Positioning System (GPS). Two articles compared LPS to VID, three articles compared LPS to GPS, and two articles compared LPS to both GPS and VID. LPS is considered a valid and reliable EPTS in the field of load monitoring of team sports, usually resulting in higher accuracy than VID or GPS. However, special care should be taken when analyzing load indicators at high speeds or different trajectories, since the validity and reliability depend on the EPTS itself.

scholarly journals Review of Ultra-Wide Band in Team Sports

2020 ◽  
Author(s):  
José Pino-Ortega ◽  
Markel Rico-González
Keyword(s):  
Team Sports ◽  
Wide Band ◽  
Quality Data ◽  
Ultra Wide Band ◽  
Tracking Systems ◽  
Validity And Reliability ◽  
High Definition ◽  
Positioning Systems ◽  
Global Positioning ◽  
Electronic Performance

The use of valid, accurate and reliable systems is fundamental to warrant a high-quality data collection and interpretation. In 2015, FIFA created a department of Electronic Performance and Tracking systems, collecting under this name the more used tracking systems in team sport setting: high-definition cameras, Global Positioning Systems, and Local Positioning Systems. To date, LPS systems proved to be valid and accurate in determining the position and estimating distances and speeds. However, it is hypothesized that between LPS, ultra-wide band (UWB) is the most promising technology for the future. Thus, this chapter was aimed to make an update about UWB technology in sport: the FIFA’s regulation, manufacturer that provide this technology, the research articles that assessed validity and reliability of UWB technology, and the criteria standard for the use of this technology.

Validity and Reliability of GPS Units to Monitor Cricket-Specific Movement Patterns

2009 ◽  
Vol 4 (3) ◽  
pp. 381-393 ◽  
Author(s):  
Carl Petersen ◽  
David Pyne ◽  
Marc Portus ◽  
Brian Dawson
Keyword(s):  
Global Positioning System ◽  
Standard Error ◽  
Coefficient Of Variation ◽  
Movement Patterns ◽  
Positioning System ◽  
Confidence Limits ◽  
Validity And Reliability ◽  
Typical Error ◽  
Global Positioning ◽  
Further Development

Purpose:The validity and reliability of three commercial global positioning system (GPS) units (MinimaxX, Catapult, Australia; SPI-10, SPI-Pro, GPSports, Australia) were quantified.Methods:Twenty trials of cricket-specific locomotion patterns and distances (walking 8800 m, jogging 2400 m, running 1200 m, striding 600 m, sprinting 20- to 40-m intervals, and run-a-three) were compared against criterion measures (400-m athletic track, electronic timing). Validity was quantified with the standard error of the estimate (SEE) and reliability estimated using typical error expressed as a coefficient of variation.Results:The validity (mean ± 90% confidence limits) for locomotion patterns walking to striding ranged from 0.4 ± 0.1 to 3.8 ± 1.4%, whereas for sprinting distances over 20 to 40 m including run-a-three (approx. 50 m) the SEE ranged from 2.6 ± 1.0 to 23.8 ± 8.8%. The reliability (expressed as mean [90% confidence limits]) of estimating distance traveled by walking to striding ranged from 0.3 (0.2 to 0.4) to 2.9% (2.3 to 4.0). Similarly, mean reliability of estimating different sprinting distances over 20 to 40 m ranged from 2.0 (1.6 to 2.8) to 30.0% (23.2 to 43.3).Conclusions:The accuracy and bias was dependent on the GPS brand employed. Commercially available GPS units have acceptable validity and reliability for estimating longer distances (600–8800 m) in walking to striding, but require further development for shorter cricket-specifc sprinting distances.

scholarly journals Quantifying the Difference Between Self-Reported and Global Positioning Systems-Measured Journey Durations: A Systematic Review

2013 ◽  
Vol 33 (4) ◽  
pp. 443-459 ◽  
Author(s):  
Paul Kelly ◽  
Patricia Krenn ◽  
Sylvia Titze ◽  
Peter Stopher ◽  
Charlie Foster
Keyword(s):  
Systematic Review ◽  
Global Positioning Systems ◽  
Positioning Systems ◽  
Global Positioning ◽  
The Difference

Global Positioning Systems (GPS) and Microtechnology Sensors in Team Sports: A Systematic Review

2013 ◽  
Vol 43 (10) ◽  
pp. 1025-1042 ◽  
Author(s):  
Cloe Cummins ◽  
Rhonda Orr ◽  
Helen O’Connor ◽  
Cameron West
Keyword(s):  
Systematic Review ◽  
Team Sports ◽  
Global Positioning Systems ◽  
Positioning Systems ◽  
Global Positioning

From prevention to peer support: a systematic review exploring the involvement of lived-experience in eating disorder interventions

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Hannah Kate Lewis ◽  
Una Foye
Keyword(s):  
Systematic Review ◽  
Lived Experience ◽  
Peer Support ◽  
Design Methodology ◽  
Positive Outcomes ◽  
Current Policy ◽  
Content Type ◽  
Search Terms ◽  
Boolean Search ◽  
Practical Implications

Purpose The current policy landscape advocates for the involvement of people with lived experience in the co-production and co-delivery of mental health services. However, evidence on how to do this safely and effectively for people with eating disorders (EDs) is lacking. The purpose of this study was to explore and synthesis the implementation of ED interventions which involved lived-experience and to evaluate the associated benefits and risks to participants. Design/methodology/approach This study will conduct a systematic review of ED interventions which involve people with lived experience of an ED. A total of seven databases and four subject-specific journals were searched using Boolean search terms. Findings The search yielded ten eligible studies. Involvement procedures were extracted which highlighted variation with some roles being continuous and active and others being isolated and passive. Qualitative results were extracted and thematically analysed which demonstrated many benefits from involving people with lived experience, such as normalisation of experiences, inspiration to recover and the sharing of insight, as well as some risks such as disingenuity and exposure to triggering content. Practical implications The implications of this review highlight the need for policy and guidance to minimise variation across procedures and implementation of co-production to ensure positive outcomes and benefits for participants, given the current landscape. More research in the benefits and risks for those involved in the delivery of the interventions is needed to ensure that co-production and peer support is delivered as safely and effectively as possible. Originality/value This was the first systematic review since 2016 (Fogarty et al., 2016) to assess peer-mentorship programmes in ED treatments, whilst expanding the remit to include wider definitions of peer-support and peer-mentorships such as co-production and co-design in research.

scholarly journals Olfactory and Gustatory Symptoms of Coronavirus Disease 2019: A Systematic Review and Meta-analysis

2021 ◽  
Author(s):  
Sivakumar Pradeep ◽  
Kalpa Pandya ◽  
Vinayak Kamath ◽  
Sivakumar Vidhyadharan ◽  
Naveen Hedne
Keyword(s):  
Systematic Review ◽  
Severe Acute Respiratory Syndrome ◽  
Meta Analysis ◽  
Screening Tools ◽  
Case Control Studies ◽  
Qualitative Synthesis ◽  
Cross Sectional ◽  
Search Terms ◽  
Pooled Prevalence ◽  
Quantitative Synthesis

Introduction: There is increasing anecdotal evidence that olfactory and gustatory dysfunction may be associated with Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2). Aim: The aim of this systematic review and meta-analysis was to find the association of olfactory and gustatory symptoms with Coronavirus Disease-19 (COVID-19) and estimate their pooled prevalence. Materials and Methods: PubMed, Embase, EBSCO and Cochrane databases were searched for cross-sectional, cohort and case-control studies evaluating olfactory and gustatory symptoms in patients with COVID-19. The search terms included COVID-19, severe acute respiratory syndrome coronavirus-2, coronavirus, olfaction disorders, anosmia, hyposmia, dysgeusia and ageusia. Random effects model was used to calculate a pooled Odds Ratio (OR) and pooled prevalence. Results: Total 14 studies were included in qualitative synthesis and 13 studies were incorporated in quantitative synthesis, involving 3,125 patients. The pooled OR was 15.59 reflecting that smell and taste disorders were strongly associated with COVID-19. The pooled prevalence of olfactory and gustatory dysfunction was 56% and 44%, respectively. Conclusion: It can be concluded that there is a significant association between olfactory and gustatory symptoms and COVID-19. Majority of the studies support the use of these symptoms as screening tools for COVID-19.

scholarly journals The Validity and Reliability of 1-Hz and 5-Hz Global Positioning Systems for Linear, Multidirectional, and Soccer-Specific Activities

2010 ◽  
Vol 5 (4) ◽  
pp. 448-458 ◽  
Author(s):  
Matthew D. Portas ◽  
Jamie A. Harley ◽  
Christopher A. Barnes ◽  
Christopher J. Rush
Keyword(s):  
Confidence Intervals ◽  
Global Positioning System ◽  
Team Sports ◽  
Positioning System ◽  
Validity And Reliability ◽  
Activity Data ◽  
Positioning Systems ◽  
Typical Error ◽  
Global Positioning ◽  
Measured Distance

Purpose:The study aimed to analyze the validity and reliability of commercially available nondifferential Global Positioning System (NdGPS) devices for measures of total distance during linear, multidirectional and soccer-specific motion at 1-Hz and 5-Hz sampling frequencies.Methods:Linear (32 trials), multidirectional (192 trials) and soccer-specific courses (40 trials) were created to test the validity (mean ± 90% confidence intervals), reliability (mean ± 90% confidence intervals) and bias (mean ± 90% confidence intervals) of the NdGPS devices against measured distance. Standard error of the estimate established validity, reliability was determined using typical error and percentage bias was established.Results:The 1-Hz and 5-Hz data ranged from 1.3% ± 0.76 to 3.1% ± 1.37 for validity and 2.03% ± 1.31 to 5.31% ± 1.2 for reliability for measures of linear and soccer-specific motion. For multidirectional activity, data ranged from 1.8% ± 0.8 to 6.88% ± 2.99 for validity and from 3.08% ± 1.34 to 7.71% ± 1.65 for reliability. The 1-Hz underestimated some complex courses by up to 11%.Conclusions:1-Hz and 5-Hz NdGPS could be used to quantify distance in soccer and similar field-based team sports. Both 1-Hz and 5-Hz have a threshold beyond which reliability is compromised. 1-Hz also underestimates distance and is less valid in more complex courses.

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