Reducing measurement errors during functional capacity tests in elders.

Autor: da Silva, Mariane Eichendorf, Orssatto, Lucas Bet da Rosa, Bezerra, Ewertton de Souza, Silva, Diego Augusto Santos, Moura, Bruno Monteiro de, Diefenthaeler, Fernando, Freitas, Cíntia de la Rocha
Zdroj: Aging Clinical & Experimental Research; Jun2018, Vol. 30 Issue 6, p595-603, 9p
Abstrakt: Background: Accuracy is essential to the validity of functional capacity measurements.Aim: To evaluate the error of measurement of functional capacity tests for elders and suggest the use of the technical error of measurement and credibility coefficient.Methods: Twenty elders (65.8 ± 4.5 years) completed six functional capacity tests that were simultaneously filmed and timed by four evaluators by means of a chronometer. A fifth evaluator timed the tests by analyzing the videos (reference data).Results: The means of most evaluators for most tests were different from the reference (p < 0.05), except for two evaluators for two different tests. There were different technical error of measurement between tests and evaluators. The Bland-Altman test showed difference in the concordance of the results between methods. Short duration tests showed higher technical error of measurement than longer tests. In summary, tests timed by a chronometer underestimate the real results of the functional capacity.Discussion: Difference between evaluators’ reaction time and perception to determine the start and the end of the tests would justify the errors of measurement.Conclusion: Calculation of the technical error of measurement or the use of the camera can increase data validity. [ABSTRACT FROM AUTHOR]
Databáze: Supplemental Index
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