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. 2021 May 10;21(9):3277. doi: 10.3390/s21093277

Figure 1.

Figure 1

(Left): position of the sensor attached to the instep of the running shoe. The triple orthogonal system represented by the arrows indicate the dorsi–planar flexion (red), abduction–adduction (blue) and eversion–inversion (green) movements. (Right): type of FOs used with the polypro-pylene and the EVA layers.