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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Journal ArticleDOI
Common Vertical Jump and Reactive Strength Index Measuring Devices: A Validity and Reliability Analysis.
Samuel Montalvo,Matthew P Gonzalez,Martin S Dietze-Hermosa,Jeffrey D. Eggleston,Sandor Dorgo +4 more
TL;DR: Montalvo et al. as mentioned in this paper evaluated the validity and reliability of metrics, including jump height and the calculated reactive strength index (RSI), obtained using the flight-time method from 4 different assessment devices with three different vertical jump modalities in comparison to a force platform.
Journal ArticleDOI
Postural balance in low back pain patients: Intra-session reliability of center of pressure on a portable force platform and of the one leg stand test.
Thomas Maribo,Kristian Stengaard-Pedersen,Lone Donbæk Jensen,Niels Trolle Andersen,Berit Schiøttz-Christensen +4 more
TL;DR: Reliability of trace length and velocity is acceptable and can be used as parameters when assessing CoP in LBP patients, whereas reliability regarding C90 area, the Romberg Ratio, and the OLST was poor andrelations between the CoP parameters and OLST were insignificant.
Journal ArticleDOI
Determining Real Change in Conditioned Pain Modulation: A Repeated Measures Study in Healthy Volunteers.
TL;DR: The standard error of measurement (SEM) and proportion of healthy participants showing a 'true' CPM effect with a standard CPM paradigm were determined and healthy volunteers demonstrate substantial within-subject variation.
Assessment of balance control in relation to fall risk among older people
TL;DR: The purpose of this thesis is to identify individuals at risk of falling and their consequences among older people and to propose a strategy to address this problem.
Journal ArticleDOI
Validity and Reliability of the Cycleops Hammer Cycle Ergometer
TL;DR: This new Cycleops trainer is a valid and reliable device to drive and measure power output in cyclists, providing an alternative to larger and more expensive laboratory ergometers and allowing cyclists to use their own bicycles.
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.