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Figure 4 | Journal of NeuroEngineering and Rehabilitation

Figure 4

From: Auto detection and segmentation of physical activities during a Timed-Up-and-Go (TUG) task in healthy older adults using multiple inertial sensors

Figure 4

Temporal schematic of segment transitions during a TUG and kinematics pattern during turning transitions. A) Selected inertial sensors are identified on the Y-axis (trunk ωy) of the graphs and the kinematics pattern during a walk-in-to-turn transition for all participants (n = 16). These patterns showed a consistent kinematic behavior of this sensor during Turning; therefore, it was used to identify Turning as well as the transition to the activities before and after Turning. B) The raw and filtered signals of the trunk ωy with two different maximum peaks that indicated two different turns during the TUG task. The time stamps of first minimum peak to the left and right of these peaks were used to approximate the transition point before and after Turning.

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