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Table 3 Frequency analysis cross-tabulated by age and vibration axis.

From: The effects of head movement on dual-axis cervical accelerometry signals

  A-P direction S-I direction
  f p f c BW f p f c BW
Age < 35 0.54 ± 0.21 3.22 ± 1.89 10.4 ± 5.54 0.49 ± 0.12 6.47 ± 3.75 14.9 ± 6.90
35 ≤ Age < 45 0.47 ± 0.10 9.56 ± 14.3 32.6 ± 42.16 0.53 ± 0.12 4.06 ± 2.48 17.1 ± 17.1
45 ≤ Age < 55 0.49 ± 0.05 9.09 ± 12.5 26.2 ± 25.6 0.60 ± 0.17 10.6 ± 10.4 34.9 ± 35.1
Age ≥ 55 0.68 ± 0.28 3.46 ± 2.13 35.9 ± 38.5 0.64 ± 0.16 10.5 ± 9.90 45.4 ± 58.2