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Table 6 Comparison of mean and standard deviation of angular ranges as provided by F4A and GA

From: Estimation of pelvis kinematics in level walking based on a single inertial sensor positioned close to the sacrum: validation on healthy subjects with stereophotogrammetric system

Range Self-selected Slow Fast
  F4A GA p-Values F4A GA p-Values F4A GA p-Values
Tilt 3.52(1.08) 3.26(1.14) 0.25 3.08(1.18) 2.88(1.19) 0.38 4.78(2.10) 3.90(0.89) 0.09
Obliquity 8.50(2.67) 8.48(3.25) 0.91 6.50(3.43) 6.82(3.16) 0.31 10.21(3.46) 9.49(3.66) 0.03*
Rotation 11.70(5.17) 11.78(5.15) 0.83 7.55(3.36) 10.13(3.35) <0.001* 15.10(6.53) 14.48(5.31) 0.27
  1. Range of motion as estimated by the F4A, and calculated by GA: mean and standard deviation over all subjects but for the second trial only (Trial 2 in Figure 5), together with corresponding p-values from the t-test: those significant are marked with *. This is reported for each of the three walking speeds, and each of the three angles. Unit is degree.