Purpose:This review aimed to synthesize previous findings on the test-retest reliability of the 30-15 Intermittent Fitness Test(IFT).Methods:The literature searches were performed in 8 databases.Studies that examined ...Purpose:This review aimed to synthesize previous findings on the test-retest reliability of the 30-15 Intermittent Fitness Test(IFT).Methods:The literature searches were performed in 8 databases.Studies that examined the test-retest reliability of the 30-15 IFT and presented the intraclass correlation coefficient(ICC) and/or the coefficient of variation(CV) for maximal velocity and/or peak heart rate were included.The consensus-based standards for the selection of health measurement instruments(COSMIN) checklist was used for the assessment of the methodological quality of the included studies.Results:Seven studies,with a total of 10 study groups,explored reliability of maximal velocity assessed by the 30-15 IFT.ICCs ranged from0.80 to 0.99,where 70% of ICCs were≥0.90.CVs for maximal velocity ranged from 1.5% to 6.0%.Six studies,with a total of 7 study groups,explored reliability of peak heart rate as assessed by the 30-15 IFT.ICCs ranged from 0.90 to 0.97(i.e.,all ICCs were≥0.90).CVs ranged from 0.6% to 4.8%.All included studies were of excellent methodological quality.Conclusion:From the results of this systematic review,it can be concluded that the 30-15 IFT has excellent test-retest reliability for both maximal velocity and peak heart rate.The test may,therefore,be used as a reliable measure of fitness in research and sports practice.展开更多
文摘Purpose:This review aimed to synthesize previous findings on the test-retest reliability of the 30-15 Intermittent Fitness Test(IFT).Methods:The literature searches were performed in 8 databases.Studies that examined the test-retest reliability of the 30-15 IFT and presented the intraclass correlation coefficient(ICC) and/or the coefficient of variation(CV) for maximal velocity and/or peak heart rate were included.The consensus-based standards for the selection of health measurement instruments(COSMIN) checklist was used for the assessment of the methodological quality of the included studies.Results:Seven studies,with a total of 10 study groups,explored reliability of maximal velocity assessed by the 30-15 IFT.ICCs ranged from0.80 to 0.99,where 70% of ICCs were≥0.90.CVs for maximal velocity ranged from 1.5% to 6.0%.Six studies,with a total of 7 study groups,explored reliability of peak heart rate as assessed by the 30-15 IFT.ICCs ranged from 0.90 to 0.97(i.e.,all ICCs were≥0.90).CVs ranged from 0.6% to 4.8%.All included studies were of excellent methodological quality.Conclusion:From the results of this systematic review,it can be concluded that the 30-15 IFT has excellent test-retest reliability for both maximal velocity and peak heart rate.The test may,therefore,be used as a reliable measure of fitness in research and sports practice.
