Test-retest reliability of the ten-repetition maximum test in untrained young males and females.
Masahito Taga, Hotaka Sugimoto, Kimito Momose
PMID 39354928WHAT IT FOUND
The 10-repetition maximum leg press and chest press gave very consistent scores across repeated test days in untrained young adults.
For females, the leg press test had larger measurement error, so small score changes should be interpreted cautiously.
Key findings
01The test showed high test-retest agreement for the leg press and chest press, with intraclass correlation coefficient values of 0.98 and 0.99.
02The minimal detectable change was 21.45 kg for the leg press and 5.89 kg for the chest press.
03For females, the standard error and minimal detectable change were twice as large as in males for the leg press.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
All participants were working adults, and work conditions and measurement times were not standardized. Participants were not blinded, and motivation during testing may have affected scores. The machines were adjusted in 5-kg increments, which may have underestimated maximum strength. Only one familiarization session was used, while the authors note that more sessions may improve reliability. The sample was healthy adults aged 20-35 with no recent resistance training and no conditions that could impede training.
Declared interests
The authors declared no conflicts of interest.
The easy way to misread this
Do not conclude that the 10RM test is proven safer or better than the 1RM test. This study measured reliability in healthy untrained adults, not injury risk or patient outcomes.