METHOD OF ASSESSING BIOLOGICAL CLOCK SHIFT BASED ON RELATIVE DAYTIME MELANOPIC LIGHT LOAD Russian patent published in 2023 - IPC A61N5/06 

FIELD: medicine; functional diagnostics; somnology; public health and healthcare; occupational physiology; chronobiology.

SUBSTANCE: persons over 18 years of age wear an actimeter that records the actual level of melanopic light exposure received for at least 3 days. Then the average value of the actually received melanopic light exposure is calculated in total for every 30 minutes in the time period from 06:00 a.m. to 07:30 p.m. in microwatts per square centimeter. Next, the differences between the average values of the actual melanopic light exposure and the recommended values are determined. The average value of adjacent differences is determined and multiplied by the phase shift potential coefficient, and their sum is found. The resulting sum is divided by 1,625.27 and multiplied by 2, and the result is the value of the shear potential per acceleration, corrected for shear force. If the value of the shear potential for acceleration, corrected by the shear force, is positive, then the shift of the biological clock is estimated as the acceleration of the biological clock for a time equal to the calculated shear potential for acceleration, corrected by the shear force. If the value of the shear potential for acceleration, corrected by the shear force, has a negative value, then the shift of the biological clock is estimated as a slowdown of the biological clock for a time equal to the calculated shear potential for acceleration, corrected by the shear force.

EFFECT: method provides an assessment of the shift of the biological clock by assessing the relative daily melanopic light load.

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