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
A re-appraisal of the reliability of the 20 m multi-stage shuttle run test
Kevin L. Lamb,Louise Rogers +1 more
TL;DR: The MSSRT does not appear to be reliable enough for the purpose of monitoring changes in performance, and systematic bias is eliminated after the first trial, but a considerable amount of random error remains, regardless of the type of score calculated.
Journal ArticleDOI
Test-retest reliability of the aerobic power index component of the tri-level fitness profile in a sedentary population
TL;DR: Results indicate that the Aerobic Power Index is a reliable submaximal exercise test for use in sedentary subjects and associated variables of VO2 and rate of perceived exertion (RPE) are established.
Journal ArticleDOI
Reproducibility for isometric and isokinetic maximum knee flexion and extension measurements using the IsoMed 2000-dynamometer
TL;DR: Based on the systematic errors found for flexor measurements and a clear improvement in reproducibility parameters from T1―T2 to T2―T3 for nearly all measurements, the use of a familiarisation session prior to actual testing is recommended.
Journal ArticleDOI
Influence of midsole metatarsophalangeal stiffness on jumping and cutting movement abilities
N Tinoco,D Bourgit,J-B Morin +2 more
TL;DR: In this article, a study was conducted to determine whether increasing the stiffness of the shoe midsole supporting the metatarsophalangeal (MTP) joint could induce a better jumping and lateral cutting movement performance.
Journal ArticleDOI
Repeated sprint ability related to recovery time in young soccer players
Johnny Padulo,Montassar Tabben,Luca Paolo Ardigò,M. Ionel,C. Popa,Cecilia Gevat,Alessandro Moura Zagatto,A. Dello Iacono +7 more
TL;DR: Findings suggest that metabolic acidosis plays a role in worsening performance and fatigue development during the shuttle test, and a 25-sec recovery duration maximized performance, containing metabolic-anaerobic power involvement and muscular stretch-shortening performance deterioration during a RSA test.
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.