However, these authors followed a different approach and published a graphical user interface for evaluation of CGM profiles based on glucose variability metrics [SD, MODD, CONGA(n), and MAGE] and glycaemic statistics (time spent within thresholds, time spent in hyperglycemic/hypoglycemic conditions, area under the curve, and mean glucose).
As a result, previous measurement studies have focussed mainly on maximum exposure levels occurring over space and/or time, as appropriate for assessing compliance with safety limits, but not on exposure patterns in the general population such as average personal exposure, time spent above a threshold or rate of change.
Time spent in these thresholds was classified based on the Evenson criteria of <100 CPM for sedentary and >2296 for MVPA [ 21].
This adjustment to lower heat flows, although seemingly minor, actually shortens the time spent above the runaway threshold (Fig. 5b).
The time spent above 20 V threshold was taken to represent locomotor activity in the mice and was collected in 1 h time bins.
Sedentary time was defined as the time spent below an intensity threshold of 50 mg, excluding the hours between 11 00 p.m. and 7 00 a.m.
The time spent between the two threshold values was taken to represent locomotor activity in the mice and was collected in 10 min time bins over three consecutive phases: a 60 min initial habituation followed by saline injection and 60 min free exploration, and the third stage, 180 min of free exploration after intraperitoneal injection with 1 mg/kg AMPH.
Personal exposure to various RF-EMF sources can be assessed separately and different types of exposure metrics can be calculated, such as time spent above a certain threshold, rate of change, or other measures reflecting the intrinsic structure of the exposure data, as presented in Table 3.
Data distribution includes the average level as well as other exposure metrics potentially relevant for health such as time spent above a certain threshold, rate of change, or other measures reflecting the intrinsic structure of the exposure as done in [ 32].
A previous validation study in adolescents, suggests that the two models of Actigraph used in this analysis, the GT1M and 7164, are largely comparable for time spent at different intensity thresholds, but that when comparing total activity levels (as counts per minute) a conversion factor of 0.91 should be applied (Actigraph 7164 cpm = Actigraph GT1M cpm/0.91) [27].
All glucose concentrations presented are plasma glucose equivalents.As an indicator of overall hyperglycaemia, the time spent above selected glucose thresholds was calculated for the first 24 h of each CGM monitoring period after the initial 2 h calibration period.
