Figure 3
From: Quantification of acceleration as activity counts in ActiGraph wearable

Example waveform and the resulting waveforms after each processing step. (A) The original waveform, at 40 Hz sampling rate. (B) The waveform down-sampled to 30 Hz. (C) The waveform after band-pass filtering. (D) The waveform scaled and rectified. (E) The waveform down-sampled to 10 Hz.