TY - JOUR T1 - Reliability and accuracy of Cooper's test in male long distance runners JO - Revista Andaluza de Medicina del Deporte T2 - AU - Alvero-Cruz,J.R. AU - Giráldez García,M.A. AU - Carnero,E.A. SN - 18887546 M3 - 10.1016/j.ramd.2016.03.001 DO - 10.1016/j.ramd.2016.03.001 UR - https://www.elsevier.es/es-revista-revista-andaluza-medicina-del-deporte-284-articulo-reliability-accuracy-cooper39s-test-in-S1888754616300132 AB - ObjectiveEndurance capacity can be assessed by field test such as Cooper's test; however, reliability and accuracy are rarely reported in the literature. It was our aims to describe reliability and accuracy of Cooper's test in long distance runners. MethodFifteen male long distance runners performed twice all-out Cooper's test in a 400m track. Total distance covered, maximum heart rate (HR) and rate of perceived exertion were recorded. Bias correction factor (Bc) was used to describe accuracy and the main dimensions of reliability were calculated by an intraclass correlation coefficient (ICC), effect size (ES) and agreement analysis. ResultsAccuracy for total distance and HR were relatively high (Cb=0.994 and 0.956). Reliability for covered distance was as small as 1.7% (52.2m) and ICC was 0.99; additionally, neither proportional nor systematical bias was detected in the agreement analysis. ConclusionsAll together, our results may confirm a good accuracy and reliability of Cooper's test in amateur long distance runners. Also, improvements or impairment lower than 52.2m must not be associated with exercise training or retraining, since they are below the values of intra-subject reliability. ER -