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

Figure 5

Evaluation of the base of support (BOS) when the subject walks using a walker. The area 3 is the walker with dimension (w) and (l); the area 1 is the BOS without the aid; the area 2 is the BOS between the subject and the walker. (a) The subject is standing. (b) When the subject moves the walker forward a distance ds, the areas 1b and 3b are constant and the area 2b increases. (c) The subject is walking. Areas 1a and 1b are . Area 1c is . Area 2a is . Area 2b is . Area 2c is . Areas 3a, 3b, and 3c are .

(a)

(b)

(c)