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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The reproducibility of estimates of critical power and anaerobic work capacity in upper-body exercise.
TL;DR: A poor repeatability of constant-power upper-body exercises to exhaustion is suggested, which may contribute to a poor repeatable of CP and AWC determined from the linear power versus inverse of time model.
Journal ArticleDOI
Reliability of knee biomechanics during a vertical drop jump in elite female athletes.
TL;DR: Moderate to strong between-session consistency of subject rankings was found, implying that the measurements assessed during the vertical drop jump demonstrate sufficient reliability to be used in both single-session and multiple-session studies.
Journal ArticleDOI
Pelvic Belt Effects on Pelvic Morphometry, Muscle Activity and Body Balance in Patients with Sacroiliac Joint Dysfunction
Odette Soisson,Juliane Lube,Andresa M.C. Germano,Karl-Heinz Hammer,Christoph Josten,Freddy Sichting,Dirk Winkler,Thomas L. Milani,Niels Hammer +8 more
TL;DR: The potential pain-decreasing effects of pelvic belts could not be attributed to altered muscle activity, pelvic morphometry or body balance in a static short-term application and long-term belt effects will be of prospective interest.
Journal ArticleDOI
Assessment of spinal mobility in ankylosing spondylitis using a video-based motion capture system.
Juan L. Garrido-Castro,Rafael Medina-Carnicer,Ruxandra Schiottis,A. M. Galisteo,Eduardo Collantes-Estevez,Cristina Gonzalez-Navas +5 more
TL;DR: Quantitative results obtained with motion capture system using the protocol defined show to be highly reliable in patients with ankylosing spondylitis and could be a useful tool for assessing the outcome of the disease and for monitoring the evolution of spinal mobility in AS patients.
Journal ArticleDOI
Reliability of brachial artery flow-mediated dilatation measurement using ultrasound.
Cláudia de Mello Meirelles,Sandra Pereira Leite,Carlos Antonio Barbosa Montenegro,Paulo Sergio Chagas Gomes +3 more
TL;DR: In this article, the authors used a two dimensional Doppler ultrasound instrument equipped with a 14 MHz transducer to measure the distances between the intima-lumen interfaces before and after the blood flow had been stopped by means of a cuff on the arm.
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.