Test-retest reliability of the ten-repetition maximum test in untrained young males and females.

[Purpose] This study investigated the test-retest reliability of the ten-repetition maximum leg press (LP) and chest press (CP) tests in untrained young males and females. The secondary aim was to examine the test-retest reliability of the 10RM test according to gender. [Participants and Methods] All participants underwent the ten-repetition maximum test for the LP and CP across three sessions separated by 2 to 6 days of recovery: the first session was familiarization, the second for the initial test, and the third for the retest. To evaluate test-retest reliability, we calculated the intraclass correlation coefficient, standard error of measurement, and minimal detectable change for both the LP and CP. These measures were analyzed separately for each gender to assess gender-related differences. [Results] High intraclass correlation coefficient index was obtained for both LP and CP for both genderes. The standard errors of measurement and minimal detectable changes were consistent with previously reported values. However, females showed more variability than males, particularly in the LP. [Conclusion] The ten-repetition maximum test for LP and CP is a reliable method for measuring strength in untrained young males and females. However, it should be noted that the margin of error may be higher among female participants compared to their male counterparts.