Abstract
[Purpose] The purpose of this study was to investigate the reproducibility of the 15-m Shuttle Run Test (15mSRT), a modified form of the 20-m Shuttle Run Test (20mSRT). [Subjects] Twenty-five healthy young volunteers. [Methods] Subjects performed the 15mSRT three times within two weeks (Test 1, Test 2, Test 3). The reproducibility of the 15mSRT performance (distance completed) between the three tests was evaluated using the intraclass correlation coefficient (ICC) and Bland-Altman analysis. In addition, the mean differences of the predicted VO2 were investigated using repeated measures ANOVA. [Results] ICC of the distance completed in the three tests ranged between 0.96–0.97. According to Bland-Altman analysis, an addition error was present in the distance completed in Test 1 vs Test 2 and Test 1 vs Test 3, although the results were free of systematic errors. [Conclusion] The 15mSRT provides reproducible results for the assessment of exercise capacity in healthy young subjects.