EARLY TESTING - Lactate
Biosense conducted a clinical study of its saliva-based lactate sensor in Mexico City in 2020. This was a study of cardiac rehabilitation patients. An example of the saliva lactate results in comparison with a blood lactate meter are shown below.
How good is it?
• An example from our clinical study in Mexico City demonstrates equivalent lactate threshold measurement in saliva and blood
• The saliva values are in amperometric current, which needs to be calibrated to obtain specific lactate values
• There may also be a time delay from blood lactate to saliva lactate. In our testing, this is typically 3 minutes
• Lactate threshold can be determined, and lactate can be used in serial measurements to monitor endurance and performance
YoYo Test
• The first image to the right shows raw saliva and blood data taken during a YoYo test
• The image to the far right shows the resulting correlation of predicted lactate concentration using the saliva data, vs. actual blood lactate readings
• Biosense is continuing its studies to develop calibration techniques and determine repeatability of the saliva-based lactate
