When applying a bandpass filter designed in Matlab's DSP system toolbox, is it necessary to do any normalization?
Note that you are cutting a lot of signal frequencies in the transition from 10Hz to 200Hz (look the attenuation in the frequency response of the filter), consider to use lowpass filter or to change filter prototype to someone with faster transition.
By cut definition each frequency that is attenuated more than -3dB is cut.