Test for "COVID-19" by "sitting down"

Uravechs Association of Thailand website Under royal patronage Details of the sit-dead hypoxia test in patients with COVID-19.

How does a "sit up" test the bodies of COVID-19 patients?
COVID-19 patients Pneumonia (COVID pneumonia) can occur throughout the course of the disease during the first 2 weeks, so it is likely that it must be detected early for the diagnosis of pneumonia. Or to detect pneumonia requiring steroid therapy in combination with antiviral drugs To reduce the spread of the disease, not causing the severity of the crisis. Testing for hypoxia in the blood while exercising (exercise-induced desaturation, EID) by sitting up. The sit-to-stand test (STST) was tested to correlate with the six-minute walk test in patients with COPD (chronic obstructive pulmonary disease).

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How to perform a sit-up lung function test in patients with COVID-19
Have the patient remove the mask. Stand with your feet on your waist and place your hands on your hips. By wearing a fingertip oxygen meter throughout the test
When the subject says “start,” have the patient fully seated in the chair and immediately stand up straight without pushing the chair with his hands. And go back to sitting with her buttocks again Repeat as quickly as possible in 1 minute (preferably 20-30 times in 1 minute) by setting a safe speed and not to overdo it on their own. Test subject to sit full buttocks with knee joints at a 90-degree angle and stand up fully throughout the test.
If the patient is tired, the test is completed 1 minute before the patient is tired or HR (Heart Rate, Heart Rate)> 120 or SpO2 (blood oxygen saturation value) 3% or more decreased (desaturation). It is really low when the meter is measured and displayed 2-3 times in a row (it measures and displays the result approximately every 3 seconds).
At the end of the test, after 1 minute, the SpO2 is measured for another 1 minute. If desaturation (low oxygen saturation) is not found, the test is considered complete.