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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Early majority engagement pathway best defines transitions from youth to adult elite men's soccer in the UK: A three time-point retrospective and prospective study
David T. Hendry,Nicola J. Hodges +1 more
TL;DR: In this article, a mixed retrospective and prospective study was conducted whereby youth academy soccer players in the UK completed demographic and practice history questionnaires at Time 1 (T1, n = 102; 13-15'yr) and T2 (for those retained on a professional contract at ∼17'yr; n = 26'yr, termed Professional-youth) to evaluate the relative importance of developmental soccer activities engaged in during childhood and adolescence and their relationships with attainment of youth and adult professional status.
Journal ArticleDOI
Medical record versus researcher measures of height and weight.
TL;DR: In this article, the extent of agreement between medical record and researcher measures of height and weight in adults and assessed the clinical significance of any resulting differences in body mass index (BMI) (kg/m(2)) according to the categorizations of underweight, normal weight, and overweight.
Journal ArticleDOI
The prediction of maximal oxygen uptake from submaximal ratings of perceived exertion elicited during the multistage fitness test
TL;DR: It is suggested that submaximal RPE values can be used to provide acceptable estimates of V.O2max which are more accurate than the published table values for the MFT.
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Coach ratings of skills and their relations to practice, play and successful transitions from youth-elite to adult-professional status in soccer
TL;DR: Within groups of youth elite athletes, domain-specific play in childhood, and to a lesser degree practice, were generally not good discriminators of specific-skills and the implications for talent development models and purported links between play and creativity are considered.
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The reliability of fat.
TL;DR: In this paper, the authors investigated the reproducibility of the exercise intensity eliciting maximal fat oxidation (Fat(max)) during an incremental test and concluded that spontaneous intraindividual variability in Fat(max) appears too large to recommend the use of this parameter for the prescription of training intensity.
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.