function [dataAcc, dataAcc_filt] = FilterandRealignFunc(inputData,FS,ApplyRealignment)

%% Filter and Realign Accdata

% Apply Realignment & Filter data

if ApplyRealignment % apply relignment as described in Rispens S, Pijnappels M, van Schooten K, Beek PJ, Daffertshofer A, van Die?n JH (2014).
    data = inputData(:, [3,2,4]); % reorder data to  1 = V; 2= ML, 3 = AP%
    % Consistency of gait characteristics as determined from acceleration data collected at different trunk locations. Gait Posture 2014;40(1):187-92.
    [RealignedAcc, ~] = RealignSensorSignalHRAmp(data, FS);
    dataAcc = RealignedAcc;
    [B,A] = butter(2,20/(FS/2),'low');
    dataAcc_filt = filtfilt(B,A,dataAcc);
else % we asume tat data is already reorderd to 1 = V; 2= ML, 3 = AP in an earlier stage;
    [B,A] = butter(2,20/(FS/2),'low');
    dataAcc = inputData;
    dataAcc_filt = filtfilt(B,A,dataAcc);
end