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. Author manuscript; available in PMC: 2017 Oct 1.
Published in final edited form as: IEEE Trans Biomed Eng. 2016 Dec 22;64(10):2353–2360. doi: 10.1109/TBME.2016.2641958

Fig. 4.

Fig. 4

(a) Electrode positioning using wet Ag/AgCl electrodes as well as the positioning used for the two dual axis accelerometers. (b) The resistance (r(t)) signal and the x-axis shank acceleration signal (ash,x(t)) measured from a subject during various activities. The time intervals marked in red are when the subject is in the correct position for taking measurements (sitting, legs extended and supported). The measurements taken when the subject is in the correct position are to be accepted, all other measurements (shown in blue) should be rejected.