Validity of anaerobic threshold measured in resistance exercise.
Takayuki Masuda, Shinta Takeuchi, Yusuke Kubo and 1 others
PMID 35291469WHAT IT FOUND
In ten healthy young men, oxygen uptake stabilized within three minutes during leg-extension exercise at 80% of the anaerobic threshold.
This confirms the method can identify a steady state, but the study was not done in patients with heart failure.
Key findings
01Oxygen uptake kinetics achieved a steady state within three minutes during the constant-load resistance exercise test.
02The study included only ten healthy young male participants with no history of respiratory or circulatory disease.
03The authors state that new research is necessary for disease groups because there is currently no evidence for this test in patients.
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 ten healthy young men, so the results cannot be applied to patients with heart failure, older adults, or women. The authors explicitly state there is no existing evidence for this test in disease groups and that this study was only to collect baseline data. The exercise was limited to right-leg knee extensions, so it is unclear if these findings apply to other resistance exercises.
Declared interests
The authors declared no conflicts of interest. The work was supported by grants from the Japan Society for the Promotion of Science.
The easy way to misread this
Do not use this study to justify prescribing CPET-guided resistance training for patients with heart failure. The participants were ten healthy young men, and the authors state that research in disease groups is still necessary.