Figure 2From: The effects of head movement on dual-axis cervical accelerometry signalsSpectrums of sample signals during the third and fifth steps. Spectrums of sample signals during the third and fifth steps: (a) and (b) depict spectrums of sample signals from the third step in the A-P and S-I directions, while (c) and (d) depict spectrums of sample signals from the fifth step in the A-P and S-I directions.Back to article page