{TAIL ~ The output} from the accelerometers may be integrated to quantify movement of {HEAD ~ the array} 
{ TAIL ~ The output } from the accelerometers may be integrated to quantify movement of { HEAD ~ the array }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD