Method for Wearable Kinematic Gait Analysis Using a Harmonic Oscillator Applied to the Center of Mass

Figure 2

Evaluation of the base of support (BOS). The dark areas are the projection at ground of left and right feet. (a) The subject is standing. Equation (3) computes BOS. (b) The subject is stepping. When the subject moves the foot to step, the BOS presented in (a) changes. When the subject has complete support in double stance, the feet take the positions as in (b) and (4) computes new BOS.

(a)

(b)