Validity and reproducibility of an incremental sit-to-stand exercise test in healthy middle-aged individuals.
Yuya Nagasawa, Keisuke Nakamura, Yoshiharu Yokokawa and 1 others
PMID 31164777WHAT IT FOUND
A simple chair-based sit-to-stand test closely tracked peak oxygen uptake on a cycle test and gave consistent results in healthy middle-aged adults, but it measured lower values and not all men completed it.
Key findings
01Peak oxygen uptake measured during the sit-to-stand test was closely related to peak oxygen uptake measured during the cycle ergometer test in healthy middle-aged adults.
02Across repeated sit-to-stand tests, peak oxygen uptake, peak heart rate, and completion time were consistent.
03Peak oxygen uptake was lower during the sit-to-stand test than during the cycle ergometer test, and not all men completed the sit-to-stand protocol.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study included only 13 healthy middle-aged adults, and reproducibility was checked in 7 of them, so the results are limited. Not all participants completed the cycle ergometer test. Only 3 of 7 men completed the sit-to-stand protocol, and the authors suspected a ceiling effect in men. The participants were healthy and mostly had BMI below 25 kg/m2, so findings may not apply to people with disease or higher BMI. No elderly or frail patients were studied, and chair height may need modification for older adults. The sit-to-stand protocol used Nordic walking poles and head targets, so it is not a plain chair stand. The lower peak oxygen uptake on the sit-to-stand test was not explained by muscle activity because electromyography was not done.
Declared interests
The authors reported no funding and no conflicts of interest.
The easy way to misread this
Do not use this test to assess patients or older adults. It was tested only in 13 healthy middle-aged adults, gave lower peak oxygen uptake than cycling, and only 3 of 7 men completed the sit-to-stand protocol.