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Table 3 Effect of the noise on GRF components

From: Design and Evaluation of a new mechatronic platform for assessment and prevention of fall risks

   ML AP V
Speed [m/s] mean (std) [N] P [W] mean (std) [N] P [W] mean (std) [N] P [W]
ni 1.00 −0.20 (0.09) 0.04 −0.23 (0.09) 0.05 0.01 (0.14) 0.02
(without belts)
nm 0.50 1.39 (0.27) 1.62 6.58 (0.78) 35.35 −0.12 (0.87) 0.79
1.00 1.45 (0.53) 2.00 5.61 (0.93) 26.17 −0.22 (1.96) 3.84
  1.50 1.53 (0.83) 2.57 4.92 (1.71) 22.35 0.19 (1.82)- 3.28
  1.88 1.56 (1.52) 4.27 4.57 (1.34) 18.65 0.31 (2.16) 4.74
  1. The table reports both mean and standard deviation (std) of GRF components, and the total power (P) of the power spectral density related to instrumental noise (ni) and noise due to moving parts (nm).