Normative Reference Values and Validity for the 30-Second Chair-Stand Test in Healthy Young Adults.
Donald H Lein, Mansour Alotaibi, Marzouq Almutairi and 1 others
PMID 35949374WHAT IT FOUND
Healthy adults aged 18 to 35 averaged 33 chair stands in 30 seconds.
The test reliably distinguished those meeting physical activity guidelines from those who did not, and correlated strongly with other lower-limb strength tests, supporting its use for this age group.
Key findings
01Participants averaged 33.0 repetitions in the 30-second chair-stand test.
02The test significantly discriminated between sufficiently active and insufficiently active young adults.
0330-second chair-stand scores showed strong negative correlation with the Five Times Sit-to-Stand test time.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTs
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What it does not show
The study did not have enough participants to determine if the test could discriminate exercise levels within males and females separately. The seat height was fixed at 45 cm and not adjusted for participant body height or leg length, which may affect performance. Validity was assessed against other functional tests, not a gold standard like isokinetic dynamometry. The sample was limited to healthy young adults, mostly Caucasian, so results may not generalize to athletes or other populations.
Declared interests
The authors declared no conflicts of interest.
The easy way to misread this
Do not apply these reference values to athletes or older adults. The study specifically recruited healthy non-athlete young adults aged 18 to 35, and the authors note that muscle strength changes across the lifespan and that athletic populations were not assessed.