Journal ArticleDOI
Statistical Methods For Assessing Measurement Error (Reliability) in Variables Relevant to Sports Medicine
Greg Atkinson,Alan M. Nevill +1 more
TLDR
It is recommended that sports clinicians and researchers should cite and interpret a number of statistical methods for assessing reliability and encourage the inclusion of the LOA method, especially the exploration of heteroscedasticity that is inherent in this analysis.Abstract:
Minimal measurement error (reliability) during the collection of interval- and ratio-type data is critically important to sports medicine research. The main components of measurement error are systematic bias (e.g. general learning or fatigue effects on the tests) and random error due to biological or mechanical variation. Both error components should be meaningfully quantified for the sports physician to relate the described error to judgements regarding ‘analytical goals’ (the requirements of the measurement tool for effective practical use) rather than the statistical significance of any reliability indicators.read more
Citations
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Journal ArticleDOI
Typical error versus limits of agreement
Greg Atkinson,Alan M. Nevill +1 more
TL;DR: It is shown that the SEM (typical error) and LOA are very similar when defined at the same level of abstraction, and the calculation of these sample statistics does not depend on sample size, but the precision of their estimate for the population parameter does.
Journal ArticleDOI
Reproducibility assessment of metabolic variables characterizing muscle energetics in vivo: A 31P-MRS study.
Gwenael Layec,Aurélien Bringard,Yann Le Fur,Christophe Vilmen,Jean-Paul Micallef,Stéphane Perrey,Patrick J. Cozzone,David Bendahan +7 more
TL;DR: The results demonstrated that measurement error using 31P‐MRS during a standardized exercise was low and that biological variability accounted for the vast majority of the measurement variability, and the corresponding metabolic measurements can reliably be used for longitudinal studies performed even over a long period of time.
Journal ArticleDOI
Reliability of a 5 x 6-s maximal cycling repeated-sprint test in trained female team-sport athletes.
TL;DR: It was concluded that two familiarisation trials are optimal for collecting reliable data from a 5 × 6-s repeated-sprint cycling test and it was suggested that decrement scores ought to be interpreted with caution.
Journal ArticleDOI
The application of the Yo-Yo intermittent endurance level 2 test to elite female soccer populations
Paul S. Bradley,Mads Bendiksen,Alexandre Dellal,Magni Mohr,A Wilkie,Naomi Datson,Christina Ørntoft,Mette K Zebis,A Gomez-Diaz,Jens Bangsbo,Peter Krustrup,Peter Krustrup +11 more
TL;DR: In this article, the authors evaluate the application of the Yo-Yo intermittent endurance test level 2 (Yo-Yo IE2) to elite female soccer populations and demonstrate that the test is reproducible and is an indicator of the match-specific physical capacity of female soccer players.
Journal ArticleDOI
Short-term street soccer improves fitness and cardiovascular health status of homeless men
Morten B. Randers,Jesper Petersen,Lars Juel Andersen,Birgitte R. Krustrup,Therese Hornstrup,Jens Jung Nielsen,Merete Nordentoft,Peter Krustrup,Peter Krustrup +8 more
TL;DR: The exercise intensity is high during street soccer and regular street soccer training can be used as an effective activity to promote physical fitness and cardiovascular health status for homeless men.
References
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Journal ArticleDOI
Statistical methods for assessing agreement between two methods of clinical measurement.
TL;DR: An alternative approach, based on graphical techniques and simple calculations, is described, together with the relation between this analysis and the assessment of repeatability.
Book
Practical statistics for medical research
TL;DR: Practical Statistics for Medical Research is a problem-based text for medical researchers, medical students, and others in the medical arena who need to use statistics but have no specialized mathematics background.
Journal ArticleDOI
Statistical methods for assessing agreement between two methods of clinical measurement
TL;DR: In this article, an alternative approach, based on graphical techniques and simple calculations, is described, together with the relation between this analysis and the assessment of repeatability, which is often used in clinical comparison of a new measurement technique with an established one.
Journal ArticleDOI
A concordance correlation coefficient to evaluate reproducibility.
TL;DR: A new reproducibility index is developed and studied that is simple to use and possesses desirable properties and the statistical properties of this estimate can be satisfactorily evaluated using an inverse hyperbolic tangent transformation.