The Andersen Aerobic Fitness Test: Reliability and Validity in 10-Year-Old ChildrenReport as inadecuate




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Background

High aerobic fitness is consistently associated with a favorable metabolic risk profile in children. Direct measurement of peak oxygen consumption VO2peak is often not feasible, thus indirect tests such as the Andersen test are required in many settings. The present study seeks to determine the reliability and validity of the Andersen test in 10-year-old children.

Methods

A total of 118 10-year-old children 67 boys and 51 girls were recruited from one school and performed four VO2peak tests over three weeks: three Andersen tests indirect and one continuous progressive treadmill test direct. Of these, 104 children provided valid data on all Andersen tests and 103 children also provided valid data on the direct treadmill test. Reliability and validity were assessed using Bland Altman plots and linear regression analysis.

Results

Bias mean change and random error limits of agreement were 26.7±125.2 m for test 2 vs. test 1 p<.001 for mean difference and 3.9±88.8 m for test 3 vs. test 2 p = .514 for mean difference. The equation to estimate VO2peak suggested by Andersen et al. 2008 showed a poor fit in the present sample; thus, we suggest a new equation: VO2peak = 23.262+0.050*Andersen distance –3.858*gender –0.376*body weight R2 = 0.61, standard error of the estimate = 5.69, p<.001, boys = 0, girls = 1.

Conclusions

The Andersen test provided reliable and valid data on a group level. However, a substantial degree of individual variability was found for estimates of VO2peak. Researchers should be aware of the amount of noise in indirect tests that estimate aerobic fitness.



Author: Eivind Aadland , Torkil Terum, Asgeir Mamen, Lars Bo Andersen, Geir Kåre Resaland

Source: http://plos.srce.hr/



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