Journal ArticleDOI
Statistical Methods For Assessing Measurement Error (Reliability) in Variables Relevant to Sports Medicine
Greg Atkinson,Alan M. Nevill +1 more
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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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Fiabilidad y validez de las pruebas sit-and-reach, revisión sistemática
TL;DR: In this paper, a revision bibliografica of the sit-and-reach test is presented, comparing the fiabilidad and validez of different pruebas.
Validation of accelerometer data for measuring impacts during jumping and landing tasks
TL;DR: In this paper, the authors examined the validity of a commercially available accelerometer, as used in the field team sports context, and found that raw acceleration measures were mostly above the acceptable limit for error (> 20%), the smoothed data had reduced error margins by comparison.
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Accuracy of PARTwear Inertial Sensor and Optojump Optical Measurement System for Measuring Ground Contact Time During Running.
TL;DR: The PW proved to be a highly useful and valid application, and its use can be recommended not only for laboratory settings but also for field applications, specifically when running speed changes or when comparisons are made with GCT data collected by other measurement systems.
Journal ArticleDOI
Within-day and between-days reliability of quadriceps isometric muscle fatigue using mechanomyography on healthy subjects
Edan Al-Zahrani,Chandrasekaran Gunasekaran,Michael J. Callaghan,Patrick Gaydecki,Diego S. Benitez,Jackie Oldham +5 more
TL;DR: The poor between-days reliability found in this study suggests caution in using MMG RMS, MPF and MF and their corresponding slopes in assessing muscle fatigue.
Journal ArticleDOI
Peak oxygen uptake. Myth and truth about an internationally accepted reference value.
TL;DR: The most common clinical implications of VO2peak measurements are discussed: assessment of (changes in) functional capacity, evaluation of the necessity of invasive diagnostic/therapeutic measures, reference for exercise prescriptions, determination of prognosis.
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.