Balance System SD (with v4.X software) 147
Figure C.17. Sway Index Value for Condition 1, Trial 2
6. To find the Sway Index value, enter the following formula taking the sum of all the data
points on cell C and placing it into cell E:
=SQRT(SUM(C43:C849)/807)/1000, using this formula output is 7.4092
Figure C.18. Using Formula to Calculate the Sum of all Sway Indexes
Where:
1614 = the number of samples for this example.
1000 = the scale factor.
7. After all of the formulas have been entered and applied, the final output matches the value
of the Sway Index displayed in the exported CSV file as illustrated in Figure C.19 below.
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