Figure 1.

Ground reaction forces during normal gait (a butterfly diagram) and digital gait analysis tool. (A) The force is minimal at heel-strike, rises to a maximum soon after, falls a bit during the middle stance, rises again at toe-off, and finally falls to complete the gait cycle. (B) The SmartStep™ Gait System insole, Andante Medical Devices (Israel). The tool comprises the insole (yellow) with two sensors; the pump inflates the insole and the central processing unit to record gait parameters. (C) The insole was inserted into a shoe, and a participant wore the whole assembly.