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
Heart rate variability measures: a fresh look at reliability.
Gian Domenico Pinna,Roberto Maestri,Antoni Torunski,Ludmiła Daniłowicz-Szymanowicz,Małgorzata Szwoch,Maria Teresa La Rovere,Grzegorz Raczak +6 more
TL;DR: It is concluded that short-term HRV parameters are subject to large day-to-day random variations and reliability indexes tended to improve during paced breathing.
Journal ArticleDOI
Research design and statistics in biomechanics and motor control.
TL;DR: This review paper considers some key issues in research methods in biomechanics and motor control, including selection of trial sizes, effect size statistics, qualitative and numerical trend analysis and cross-correlations, and reporting checks or corrections for violations of underpinning assumptions.
Journal ArticleDOI
Test-retest reliability of the 10-metre fast walk test and 6-minute walk test in ambulatory school-aged children with cerebral palsy.
Patricia Thompson,Tricia Beath,Jacqueline Bell,Gabrielle Jacobson,Tegan Phair,Nancy M. Salbach,F. Virginia Wright +6 more
TL;DR: Investigation of the need for a practice walk when administering the 6MWT with children in GMFCS Level I is recommended to establish their fastest pace.
Journal ArticleDOI
Validity and reliability of GPS units to monitor cricket-specific movement patterns.
TL;DR: Commercially available GPS units have acceptable validity and reliability for estimating longer distances in walking to striding, but require further development for shorter cricket-specific sprinting distances.
Journal ArticleDOI
Reliability of isokinetic strength imbalance ratios measured using the Cybex NORM dynamometer.
Franco M. Impellizzeri,Mario Bizzini,Ermanno Rampinini,Ferdinando Cereda,Nicola A. Maffiuletti +4 more
TL;DR: The reliability of the most common strength imbalance ratios and of absolute isokinetic muscle strength assessed using the Cybex NORM was established.
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.