Step
Captures the number of steps taken since the last reading. Each step is only reported once so records shouldn't have overlapping time. The start time of each record should represent the start of the interval in which steps were taken.
The start time must be equal to or greater than the end time of the previous record. Adding all of the values together for a period of time calculates the total number of steps during that period.
Parameters
count
The number of steps taken
start
The start instant of the interval over which the value this record was captured
end
The end instant of the interval over which the value this record was captured